TY  - JOUR
AU  - Holclajtner-Antunović, Ivanka
AU  - Bajuk-Bogdanović, Danica
AU  - Todorović, Marija R.
AU  - Mioč, Ubavka B.
AU  - Zakrzewska, Joanna
AU  - Uskoković-Marković, Snežana
PY  - 2008
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1031
AB  - The various molecular species of 12-tungstophosporic acid (WPA) in aqueous solutions of different pH values (from 1 to 11.5) were investigated by UV, IR, and NMR spectroscopy. The dependence of the attained equilibrium composition in solution on time, concentration of WPA, and type of buffer used was studied. Obtained results indicate that the buffer type and pH value greatly determine the equilibrium composition in the solution. The Keggin structure of the WPA is sustained only up to pH 1.5. With further increase in pH, the decomposition of Keggin anion does not lead directly to the monovacant lacunary anion. Between 1.5 and 2.0. the structures with 2 phosphorus atoms from the Dawson series are dominant as intermediate species. In the pH range 3.5-7.5, WPA is present in the form of the monovacant lacunary Keggin anion. These results are of special importance for the biomedical and catalytic applications of heteropoly compounds (HPCs) and for an improved understanding of the mechanism of their functioning.
PB  - Canadian Science Publishing, Nrc Research Press, Ottawa
T2  - Canadian Journal of Chemistry
T1  - Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution
VL  - 86
IS  - 10
SP  - 996
EP  - 1004
DO  - 10.1139/V08-138
ER  - 

@article{
author = "Holclajtner-Antunović, Ivanka and Bajuk-Bogdanović, Danica and Todorović, Marija R. and Mioč, Ubavka B. and Zakrzewska, Joanna and Uskoković-Marković, Snežana",
year = "2008",
abstract = "The various molecular species of 12-tungstophosporic acid (WPA) in aqueous solutions of different pH values (from 1 to 11.5) were investigated by UV, IR, and NMR spectroscopy. The dependence of the attained equilibrium composition in solution on time, concentration of WPA, and type of buffer used was studied. Obtained results indicate that the buffer type and pH value greatly determine the equilibrium composition in the solution. The Keggin structure of the WPA is sustained only up to pH 1.5. With further increase in pH, the decomposition of Keggin anion does not lead directly to the monovacant lacunary anion. Between 1.5 and 2.0. the structures with 2 phosphorus atoms from the Dawson series are dominant as intermediate species. In the pH range 3.5-7.5, WPA is present in the form of the monovacant lacunary Keggin anion. These results are of special importance for the biomedical and catalytic applications of heteropoly compounds (HPCs) and for an improved understanding of the mechanism of their functioning.",
publisher = "Canadian Science Publishing, Nrc Research Press, Ottawa",
journal = "Canadian Journal of Chemistry",
title = "Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution",
volume = "86",
number = "10",
pages = "996-1004",
doi = "10.1139/V08-138"
}

Holclajtner-Antunović, I., Bajuk-Bogdanović, D., Todorović, M. R., Mioč, U. B., Zakrzewska, J.,& Uskoković-Marković, S.. (2008). Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution. in Canadian Journal of Chemistry
Canadian Science Publishing, Nrc Research Press, Ottawa., 86(10), 996-1004.
https://doi.org/10.1139/V08-138

Holclajtner-Antunović I, Bajuk-Bogdanović D, Todorović MR, Mioč UB, Zakrzewska J, Uskoković-Marković S. Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution. in Canadian Journal of Chemistry. 2008;86(10):996-1004.
doi:10.1139/V08-138 .

Holclajtner-Antunović, Ivanka, Bajuk-Bogdanović, Danica, Todorović, Marija R., Mioč, Ubavka B., Zakrzewska, Joanna, Uskoković-Marković, Snežana, "Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution" in Canadian Journal of Chemistry, 86, no. 10 (2008):996-1004,
https://doi.org/10.1139/V08-138 . .

TY  - CONF
AU  - Uskoković-Marković, Snežana
AU  - Colomban, Ph.
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/965
AB  - On the basis of previously recorded Raman and IR spectral data on different crystallohydrates of alkaline-earth 12-tungstophosphoric acid salts (obtained from mother solution and those kept under constant relative humidity (RH) of 35%), an effort was made to determine the position of cations in the Keggin unit. Shifts or band splitting in vibrational spectra of the salts, as well as the changes in band intensities were found to be connected to the cation properties. The spectral data also demonstrated a great influence of cation properties on the secondary structure of Keggin anions and dynamics of protonic species.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
C3  - Current Research in Advanced Materials and Processes
T1  - Investigations of (PO4)/(WO6)(3) - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid
VL  - 555
SP  - 201
DO  - 10.4028/www.scientific.net/MSF.555.201
ER  - 

@conference{
author = "Uskoković-Marković, Snežana and Colomban, Ph. and Mioč, Ubavka B. and Todorović, Marija R.",
year = "2007",
abstract = "On the basis of previously recorded Raman and IR spectral data on different crystallohydrates of alkaline-earth 12-tungstophosphoric acid salts (obtained from mother solution and those kept under constant relative humidity (RH) of 35%), an effort was made to determine the position of cations in the Keggin unit. Shifts or band splitting in vibrational spectra of the salts, as well as the changes in band intensities were found to be connected to the cation properties. The spectral data also demonstrated a great influence of cation properties on the secondary structure of Keggin anions and dynamics of protonic species.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Current Research in Advanced Materials and Processes",
title = "Investigations of (PO4)/(WO6)(3) - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid",
volume = "555",
pages = "201",
doi = "10.4028/www.scientific.net/MSF.555.201"
}

Uskoković-Marković, S., Colomban, Ph., Mioč, U. B.,& Todorović, M. R.. (2007). Investigations of (PO4)/(WO6)(3) - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid. in Current Research in Advanced Materials and Processes
Trans Tech Publications Ltd, Durnten-Zurich., 555, 201.
https://doi.org/10.4028/www.scientific.net/MSF.555.201

Uskoković-Marković S, Colomban P, Mioč UB, Todorović MR. Investigations of (PO4)/(WO6)(3) - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid. in Current Research in Advanced Materials and Processes. 2007;555:201.
doi:10.4028/www.scientific.net/MSF.555.201 .

Uskoković-Marković, Snežana, Colomban, Ph., Mioč, Ubavka B., Todorović, Marija R., "Investigations of (PO4)/(WO6)(3) - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid" in Current Research in Advanced Materials and Processes, 555 (2007):201,
https://doi.org/10.4028/www.scientific.net/MSF.555.201 . .

TY  - CONF
AU  - Uskoković-Marković, Snežana
AU  - Colomban, Ph
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/993
AB  - On the basis of previously recorded Raman and IR spectral data on different crystallohydrates of alkaline-earth 12-tungstophosphoric acid salts (obtained from mother solution and those kept under constant relative humidity (RH) of 35%), an effort was made to determine the position of cations in the Keggin unit. Shifts or band splitting in vibrational spectra of the salts, as well as the changes in band intensities were found to be connected to the cation properties. The spectral data also demonstrated a great influence of cation properties on the secondary structure of Keggin anions and dynamics of protonic species.
C3  - Current Research in Advanced Materials and Processes
T1  - Investigations of (PO4)/(WO6)3 - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid
VL  - 555
SP  - 201
EP  - 206
UR  - https://hdl.handle.net/21.15107/rcub_farfar_993
ER  - 

@conference{
author = "Uskoković-Marković, Snežana and Colomban, Ph and Mioč, Ubavka B. and Todorović, Marija R.",
year = "2007",
abstract = "On the basis of previously recorded Raman and IR spectral data on different crystallohydrates of alkaline-earth 12-tungstophosphoric acid salts (obtained from mother solution and those kept under constant relative humidity (RH) of 35%), an effort was made to determine the position of cations in the Keggin unit. Shifts or band splitting in vibrational spectra of the salts, as well as the changes in band intensities were found to be connected to the cation properties. The spectral data also demonstrated a great influence of cation properties on the secondary structure of Keggin anions and dynamics of protonic species.",
journal = "Current Research in Advanced Materials and Processes",
title = "Investigations of (PO4)/(WO6)3 - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid",
volume = "555",
pages = "201-206",
url = "https://hdl.handle.net/21.15107/rcub_farfar_993"
}

Uskoković-Marković, S., Colomban, P., Mioč, U. B.,& Todorović, M. R.. (2007). Investigations of (PO4)/(WO6)3 - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid. in Current Research in Advanced Materials and Processes, 555, 201-206.
https://hdl.handle.net/21.15107/rcub_farfar_993

Uskoković-Marković S, Colomban P, Mioč UB, Todorović MR. Investigations of (PO4)/(WO6)3 - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid. in Current Research in Advanced Materials and Processes. 2007;555:201-206.
https://hdl.handle.net/21.15107/rcub_farfar_993 .

Uskoković-Marković, Snežana, Colomban, Ph, Mioč, Ubavka B., Todorović, Marija R., "Investigations of (PO4)/(WO6)3 - Lattice components of Keggin's anion interaction with cations in alkaline-earth salts of 12-tungstophosphoric acid" in Current Research in Advanced Materials and Processes, 555 (2007):201-206,
https://hdl.handle.net/21.15107/rcub_farfar_993 .

TY  - CONF
AU  - Uskoković-Marković, Snežana
AU  - Todrović, M.
AU  - Mioč, Ubavka B.
AU  - Krstić, B.
AU  - Dukić, N.
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/943
PB  - Amer Chemical Soc, Washington
C3  - Abstracts of Papers of the American Chemical Society
T1  - AGRO 99-Antiviral activity of Keggin-type heteropoly compounds on tobacco plants
VL  - 233
SP  - 195
EP  - 195
UR  - https://hdl.handle.net/21.15107/rcub_farfar_943
ER  - 

@conference{
author = "Uskoković-Marković, Snežana and Todrović, M. and Mioč, Ubavka B. and Krstić, B. and Dukić, N.",
year = "2007",
publisher = "Amer Chemical Soc, Washington",
journal = "Abstracts of Papers of the American Chemical Society",
title = "AGRO 99-Antiviral activity of Keggin-type heteropoly compounds on tobacco plants",
volume = "233",
pages = "195-195",
url = "https://hdl.handle.net/21.15107/rcub_farfar_943"
}

Uskoković-Marković, S., Todrović, M., Mioč, U. B., Krstić, B.,& Dukić, N.. (2007). AGRO 99-Antiviral activity of Keggin-type heteropoly compounds on tobacco plants. in Abstracts of Papers of the American Chemical Society
Amer Chemical Soc, Washington., 233, 195-195.
https://hdl.handle.net/21.15107/rcub_farfar_943

Uskoković-Marković S, Todrović M, Mioč UB, Krstić B, Dukić N. AGRO 99-Antiviral activity of Keggin-type heteropoly compounds on tobacco plants. in Abstracts of Papers of the American Chemical Society. 2007;233:195-195.
https://hdl.handle.net/21.15107/rcub_farfar_943 .

Uskoković-Marković, Snežana, Todrović, M., Mioč, Ubavka B., Krstić, B., Dukić, N., "AGRO 99-Antiviral activity of Keggin-type heteropoly compounds on tobacco plants" in Abstracts of Papers of the American Chemical Society, 233 (2007):195-195,
https://hdl.handle.net/21.15107/rcub_farfar_943 .

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Stanojević, Maja
AU  - Holclajtner-Antunović, Ivanka
AU  - Uskoković-Marković, Snežana
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Jovanović, Tanja
AU  - Vukojević, Vladana
PY  - 2006
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/837
AB  - Compounds of phosphotungstic acid (WPA) containing the amino acids alanine (WPA-Ala) or glycine (WPA-Gly) as counter cations were synthesized and characterized by elemental analysis, thermal analysis, and IR spectroscopy. Cellular toxicity was assessed by the trypan blue exclusion method, and the antiviral activity of WPA and the modified WPA compounds was tested against herpes simplex viruses (HSV) type 1 and type 2. Biological assays indicate that the newly synthesized compounds exhibit no evident cytotoxic effects on Vero cells and negligible antiviral activity against HSV-1 and HSV-2.
PB  - Springer Wien, Wien
T2  - Monatshefte für Chemie Chemical Monthly
T1  - Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid
VL  - 137
IS  - 6
SP  - 803
EP  - 810
DO  - 10.1007/s00706-006-0467-3
ER  - 

@article{
author = "Kuntić, Vesna and Stanojević, Maja and Holclajtner-Antunović, Ivanka and Uskoković-Marković, Snežana and Mioč, Ubavka B. and Todorović, Marija R. and Jovanović, Tanja and Vukojević, Vladana",
year = "2006",
abstract = "Compounds of phosphotungstic acid (WPA) containing the amino acids alanine (WPA-Ala) or glycine (WPA-Gly) as counter cations were synthesized and characterized by elemental analysis, thermal analysis, and IR spectroscopy. Cellular toxicity was assessed by the trypan blue exclusion method, and the antiviral activity of WPA and the modified WPA compounds was tested against herpes simplex viruses (HSV) type 1 and type 2. Biological assays indicate that the newly synthesized compounds exhibit no evident cytotoxic effects on Vero cells and negligible antiviral activity against HSV-1 and HSV-2.",
publisher = "Springer Wien, Wien",
journal = "Monatshefte für Chemie Chemical Monthly",
title = "Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid",
volume = "137",
number = "6",
pages = "803-810",
doi = "10.1007/s00706-006-0467-3"
}

Kuntić, V., Stanojević, M., Holclajtner-Antunović, I., Uskoković-Marković, S., Mioč, U. B., Todorović, M. R., Jovanović, T.,& Vukojević, V.. (2006). Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid. in Monatshefte für Chemie Chemical Monthly
Springer Wien, Wien., 137(6), 803-810.
https://doi.org/10.1007/s00706-006-0467-3

Kuntić V, Stanojević M, Holclajtner-Antunović I, Uskoković-Marković S, Mioč UB, Todorović MR, Jovanović T, Vukojević V. Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid. in Monatshefte für Chemie Chemical Monthly. 2006;137(6):803-810.
doi:10.1007/s00706-006-0467-3 .

Kuntić, Vesna, Stanojević, Maja, Holclajtner-Antunović, Ivanka, Uskoković-Marković, Snežana, Mioč, Ubavka B., Todorović, Marija R., Jovanović, Tanja, Vukojević, Vladana, "Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid" in Monatshefte für Chemie Chemical Monthly, 137, no. 6 (2006):803-810,
https://doi.org/10.1007/s00706-006-0467-3 . .

TY  - JOUR
AU  - Uskoković-Marković, Snežana
AU  - Todorović, M.
AU  - Mioč, Ubavka B.
AU  - Antunović-Holclajtner, I.
AU  - Andrić, V.
PY  - 2006
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/698
AB  - In this study, we have developed a sensitive, rapid and simple procedure for the energy dispersive X-ray fluorescence (EDXRF) spectrometry measurement of tungsten in tobacco plant parts. Only 0.1 g of dried plant material is needed instead of the usual I g. EDXRF spectrometry is used for quantitative measurement, after the foliar application of solutions of tungstophosphoric acid (WPA), its magnesium salt and compounds with glycine (Gly) and alanine (Ala), in exact quantities. After that, the leaves, trunks and summits were collected and prepared separately. Tungsten is determined directly in raw dried material, and the overlap of the tungsten peak with zinc's that is present is avoided by the spectral deconvolution to obtain quantitative results. The prepared dry tablets weighed 100 mg, and measurement time was 2000 s. The radioisotope excitation source used was Cd-109 and tungsten was identified and quantified at the L-alpha 1 and L-alpha 2 lines at the energies of 8397.6eV and 8335.2eV, respectively. EDXRF spectrometry was applied in a wide range of concentrations (up to 2000 mg/kg), with an estimated detection concentration limit of 15 mg/kg, calculated on dried material. Quantitative analysis of different parts of the treated plant plus the washings gave 94.47% recovery of the applied tungsten in different compound forms. After the foliar application of investigated WPA compounds, there were noticed both vertical and horizontal distributions of tungsten through out the tobacco plants, according to the EDXRF spectrometry results. This conclusion is also in agreement with the positive effects of WPA on Tobacco mosaic tobamovirus (TMV) infection of Nicotiana tabacum (Solanaceae).
PB  - Elsevier Science BV, Amsterdam
T2  - Talanta
T1  - EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds
VL  - 70
IS  - 2
SP  - 301
EP  - 306
DO  - 10.1016/j.talanta.2006.02.041
ER  - 

@article{
author = "Uskoković-Marković, Snežana and Todorović, M. and Mioč, Ubavka B. and Antunović-Holclajtner, I. and Andrić, V.",
year = "2006",
abstract = "In this study, we have developed a sensitive, rapid and simple procedure for the energy dispersive X-ray fluorescence (EDXRF) spectrometry measurement of tungsten in tobacco plant parts. Only 0.1 g of dried plant material is needed instead of the usual I g. EDXRF spectrometry is used for quantitative measurement, after the foliar application of solutions of tungstophosphoric acid (WPA), its magnesium salt and compounds with glycine (Gly) and alanine (Ala), in exact quantities. After that, the leaves, trunks and summits were collected and prepared separately. Tungsten is determined directly in raw dried material, and the overlap of the tungsten peak with zinc's that is present is avoided by the spectral deconvolution to obtain quantitative results. The prepared dry tablets weighed 100 mg, and measurement time was 2000 s. The radioisotope excitation source used was Cd-109 and tungsten was identified and quantified at the L-alpha 1 and L-alpha 2 lines at the energies of 8397.6eV and 8335.2eV, respectively. EDXRF spectrometry was applied in a wide range of concentrations (up to 2000 mg/kg), with an estimated detection concentration limit of 15 mg/kg, calculated on dried material. Quantitative analysis of different parts of the treated plant plus the washings gave 94.47% recovery of the applied tungsten in different compound forms. After the foliar application of investigated WPA compounds, there were noticed both vertical and horizontal distributions of tungsten through out the tobacco plants, according to the EDXRF spectrometry results. This conclusion is also in agreement with the positive effects of WPA on Tobacco mosaic tobamovirus (TMV) infection of Nicotiana tabacum (Solanaceae).",
publisher = "Elsevier Science BV, Amsterdam",
journal = "Talanta",
title = "EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds",
volume = "70",
number = "2",
pages = "301-306",
doi = "10.1016/j.talanta.2006.02.041"
}

Uskoković-Marković, S., Todorović, M., Mioč, U. B., Antunović-Holclajtner, I.,& Andrić, V.. (2006). EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds. in Talanta
Elsevier Science BV, Amsterdam., 70(2), 301-306.
https://doi.org/10.1016/j.talanta.2006.02.041

Uskoković-Marković S, Todorović M, Mioč UB, Antunović-Holclajtner I, Andrić V. EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds. in Talanta. 2006;70(2):301-306.
doi:10.1016/j.talanta.2006.02.041 .

Uskoković-Marković, Snežana, Todorović, M., Mioč, Ubavka B., Antunović-Holclajtner, I., Andrić, V., "EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds" in Talanta, 70, no. 2 (2006):301-306,
https://doi.org/10.1016/j.talanta.2006.02.041 . .

TY  - JOUR
AU  - Holclajtner-Antunović, Ivanka
AU  - Kuntić, Vesna
AU  - Juranić, Zorica
AU  - Filipović, Ivana M.
AU  - Mioč, Ubavka B.
AU  - Stanojković, Tatjana
AU  - Žižak, Željko
PY  - 2004
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/556
AB  - The antitumour action of three polyoxometallate compounds of Keggin's type: 12-molibdophosphoric acid (MoPA), 12-tungstophosphoric acid (WPA) and Mg salt of WPA (MgHWPA) was studied in vitro. For human cervix carcinoma (HeLa) cells survival, as well as for nonstimulated and stimulated peripheral blood mononuclear cells (PBMC), MTT test was applied and IC50 values of POMs were determinated. Index selectivity for WPA and MgHWPA are 1.9 and 1.8, calculated for nonstimulated, as well as 2.5 and 2.0, calculated for stimulated PBMS. Combination of studied POMs do not contribute to their lower IC50 values. Apoptosis detection implies mild cytotoxic effect of WPA and more cytostatical effect of MgHWPA. Combination of each of the studied POMs with caffeine decreases HeLa survival in dose dependent way. None of the studied POMs in the used concentrations (up to 100 mmol/L) damages blood cells and/or decreases their number.
AB  - Ispitivano je in vitro antitumorsko dejstvo tri jedinjenja iz grupe polioksometalata (POM-a) Keginovog tipa: 12-fosformolibdenska kiselina (MoPA), 12-fosforvolframova kiselina (WPA) i Mg so 12-fosforvolframove kiseline (MgHWPA). Primenom MTT testa na ćelije karcinoma cerviksa (HeLa ćelije), kao i na nestimulisane i stimulisane mononuklearne ćelije iz periferne krvi (PBMC), određene su IC50 vrednosti ispitivanih POM-a. Indeksi selektivnosti za WPA i MgHWPA su 1,9 i 1,8 računati za nestimulisane, odnosno 2,5 i 2,0 za stimulisane PBMC. Kombinacijom ispitivanih POMa ne postiže se smanjenje njihovih IC50 vrednosti. Detekcijom apoptoze utvrđeno je da WPA pokazuje blagi citotoksični efekat, dok MgHWPA ima blagi citotostatski efekat. U kombinaciji sa kofeinom, POM jedinjenja još više smanjuju preživljavanje HeLa ćelija. U ispitivanim koncentracijama (do 100 mmol/L), nijedno od POM jedinjenja ne utiče na broj i izgled krvnih ćelija pune krvi zdravih davalaca.
PB  - Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd
T2  - Jugoslovenska medicinska biohemija
T1  - Study of some polyoxometallates of Keggin's type as potential antitumour agents
T1  - Ispitivanje nekih polioksalometalata Keginovog tipa kao potencijalnih antitumorskih agenasa
VL  - 23
IS  - 1
SP  - 25
EP  - 30
DO  - 10.2298/JMH0401025H
ER  - 

@article{
author = "Holclajtner-Antunović, Ivanka and Kuntić, Vesna and Juranić, Zorica and Filipović, Ivana M. and Mioč, Ubavka B. and Stanojković, Tatjana and Žižak, Željko",
year = "2004",
abstract = "The antitumour action of three polyoxometallate compounds of Keggin's type: 12-molibdophosphoric acid (MoPA), 12-tungstophosphoric acid (WPA) and Mg salt of WPA (MgHWPA) was studied in vitro. For human cervix carcinoma (HeLa) cells survival, as well as for nonstimulated and stimulated peripheral blood mononuclear cells (PBMC), MTT test was applied and IC50 values of POMs were determinated. Index selectivity for WPA and MgHWPA are 1.9 and 1.8, calculated for nonstimulated, as well as 2.5 and 2.0, calculated for stimulated PBMS. Combination of studied POMs do not contribute to their lower IC50 values. Apoptosis detection implies mild cytotoxic effect of WPA and more cytostatical effect of MgHWPA. Combination of each of the studied POMs with caffeine decreases HeLa survival in dose dependent way. None of the studied POMs in the used concentrations (up to 100 mmol/L) damages blood cells and/or decreases their number., Ispitivano je in vitro antitumorsko dejstvo tri jedinjenja iz grupe polioksometalata (POM-a) Keginovog tipa: 12-fosformolibdenska kiselina (MoPA), 12-fosforvolframova kiselina (WPA) i Mg so 12-fosforvolframove kiseline (MgHWPA). Primenom MTT testa na ćelije karcinoma cerviksa (HeLa ćelije), kao i na nestimulisane i stimulisane mononuklearne ćelije iz periferne krvi (PBMC), određene su IC50 vrednosti ispitivanih POM-a. Indeksi selektivnosti za WPA i MgHWPA su 1,9 i 1,8 računati za nestimulisane, odnosno 2,5 i 2,0 za stimulisane PBMC. Kombinacijom ispitivanih POMa ne postiže se smanjenje njihovih IC50 vrednosti. Detekcijom apoptoze utvrđeno je da WPA pokazuje blagi citotoksični efekat, dok MgHWPA ima blagi citotostatski efekat. U kombinaciji sa kofeinom, POM jedinjenja još više smanjuju preživljavanje HeLa ćelija. U ispitivanim koncentracijama (do 100 mmol/L), nijedno od POM jedinjenja ne utiče na broj i izgled krvnih ćelija pune krvi zdravih davalaca.",
publisher = "Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd",
journal = "Jugoslovenska medicinska biohemija",
title = "Study of some polyoxometallates of Keggin's type as potential antitumour agents, Ispitivanje nekih polioksalometalata Keginovog tipa kao potencijalnih antitumorskih agenasa",
volume = "23",
number = "1",
pages = "25-30",
doi = "10.2298/JMH0401025H"
}

Holclajtner-Antunović, I., Kuntić, V., Juranić, Z., Filipović, I. M., Mioč, U. B., Stanojković, T.,& Žižak, Ž.. (2004). Study of some polyoxometallates of Keggin's type as potential antitumour agents. in Jugoslovenska medicinska biohemija
Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd., 23(1), 25-30.
https://doi.org/10.2298/JMH0401025H

Holclajtner-Antunović I, Kuntić V, Juranić Z, Filipović IM, Mioč UB, Stanojković T, Žižak Ž. Study of some polyoxometallates of Keggin's type as potential antitumour agents. in Jugoslovenska medicinska biohemija. 2004;23(1):25-30.
doi:10.2298/JMH0401025H .

Holclajtner-Antunović, Ivanka, Kuntić, Vesna, Juranić, Zorica, Filipović, Ivana M., Mioč, Ubavka B., Stanojković, Tatjana, Žižak, Željko, "Study of some polyoxometallates of Keggin's type as potential antitumour agents" in Jugoslovenska medicinska biohemija, 23, no. 1 (2004):25-30,
https://doi.org/10.2298/JMH0401025H . .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Uskoković-Marković, Snežana
AU  - Davidović, M
AU  - Kremenović, A
AU  - Spasojević-de Bire, A
AU  - Cajkovski, T
AU  - Likar-Smiljanić, V
AU  - Biljić, R
PY  - 2003
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/440
AB  - Some structural properties of a magnesium salt of 12-tungstophosphoric acid, MgHPW12O40.nH(2)O (MgHVvTA-n), are reported. The influence of the Mg2+ ion on the structure, dynamics of the protonic species, and dielectric and conductive characteristics of the salt have been studied. The interaction of protonic species with Keggin anion was discussed. Preliminary results of the crystal structure indicate that the structure is composed of Keggin anions and Mg(OH2)(6) aqua-complexes. Some comparisons are made with other alkaline-earth and alkaline salts of WPA. The results of thermal analysis (TGA and DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), conductivity and permittivity measurements of MgHWPA-n are reported and discussed.
PB  - Elsevier Science BV, Amsterdam
T2  - South African Journal of Botany
T1  - Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid
VL  - 162
SP  - 217
EP  - 223
DO  - 10.1016/S0167-2738(03)00257-1
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Uskoković-Marković, Snežana and Davidović, M and Kremenović, A and Spasojević-de Bire, A and Cajkovski, T and Likar-Smiljanić, V and Biljić, R",
year = "2003",
abstract = "Some structural properties of a magnesium salt of 12-tungstophosphoric acid, MgHPW12O40.nH(2)O (MgHVvTA-n), are reported. The influence of the Mg2+ ion on the structure, dynamics of the protonic species, and dielectric and conductive characteristics of the salt have been studied. The interaction of protonic species with Keggin anion was discussed. Preliminary results of the crystal structure indicate that the structure is composed of Keggin anions and Mg(OH2)(6) aqua-complexes. Some comparisons are made with other alkaline-earth and alkaline salts of WPA. The results of thermal analysis (TGA and DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), conductivity and permittivity measurements of MgHWPA-n are reported and discussed.",
publisher = "Elsevier Science BV, Amsterdam",
journal = "South African Journal of Botany",
title = "Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid",
volume = "162",
pages = "217-223",
doi = "10.1016/S0167-2738(03)00257-1"
}

Mioč, U. B., Todorović, M. R., Uskoković-Marković, S., Davidović, M., Kremenović, A., Spasojević-de Bire, A., Cajkovski, T., Likar-Smiljanić, V.,& Biljić, R.. (2003). Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid. in South African Journal of Botany
Elsevier Science BV, Amsterdam., 162, 217-223.
https://doi.org/10.1016/S0167-2738(03)00257-1

Mioč UB, Todorović MR, Uskoković-Marković S, Davidović M, Kremenović A, Spasojević-de Bire A, Cajkovski T, Likar-Smiljanić V, Biljić R. Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid. in South African Journal of Botany. 2003;162:217-223.
doi:10.1016/S0167-2738(03)00257-1 .

Mioč, Ubavka B., Todorović, Marija R., Uskoković-Marković, Snežana, Davidović, M, Kremenović, A, Spasojević-de Bire, A, Cajkovski, T, Likar-Smiljanić, V, Biljić, R, "Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid" in South African Journal of Botany, 162 (2003):217-223,
https://doi.org/10.1016/S0167-2738(03)00257-1 . .

TY  - CONF
AU  - Uskoković-Marković, Snežana
AU  - Todorović, Marija R.
AU  - Mioč, Ubavka B.
AU  - Krstić, B.
AU  - Dukić, Nataša
PY  - 2002
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/340
PB  - Savez farmaceutskih udruženja Srbije, Beograd
C3  - Arhiv za farmaciju
T1  - New application of 12-tungstophosphoric acid and its magnesium salt against plant viruses
T1  - Nova primena 12-volframfosforne kiseline i njene magnezijumove soli protiv biljnih virusa
VL  - 52
IS  - 4
SP  - 814
EP  - 815
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_377
ER  - 

@conference{
author = "Uskoković-Marković, Snežana and Todorović, Marija R. and Mioč, Ubavka B. and Krstić, B. and Dukić, Nataša",
year = "2002",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "New application of 12-tungstophosphoric acid and its magnesium salt against plant viruses, Nova primena 12-volframfosforne kiseline i njene magnezijumove soli protiv biljnih virusa",
volume = "52",
number = "4",
pages = "814-815",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_377"
}

Uskoković-Marković, S., Todorović, M. R., Mioč, U. B., Krstić, B.,& Dukić, N.. (2002). New application of 12-tungstophosphoric acid and its magnesium salt against plant viruses. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije, Beograd., 52(4), 814-815.
https://hdl.handle.net/21.15107/rcub_agrospace_377

Uskoković-Marković S, Todorović MR, Mioč UB, Krstić B, Dukić N. New application of 12-tungstophosphoric acid and its magnesium salt against plant viruses. in Arhiv za farmaciju. 2002;52(4):814-815.
https://hdl.handle.net/21.15107/rcub_agrospace_377 .

Uskoković-Marković, Snežana, Todorović, Marija R., Mioč, Ubavka B., Krstić, B., Dukić, Nataša, "New application of 12-tungstophosphoric acid and its magnesium salt against plant viruses" in Arhiv za farmaciju, 52, no. 4 (2002):814-815,
https://hdl.handle.net/21.15107/rcub_agrospace_377 .

TY  - CONF
AU  - Filipović, Ivana M.
AU  - Kuntić, Vesna
AU  - Mioč, Ubavka B.
PY  - 2002
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/364
PB  - Savez farmaceutskih udruženja Srbije, Beograd
C3  - Arhiv za farmaciju
T1  - Investigated of anticoagulation effects of Mg salt of phosphotungstic acid
T1  - Ispitivanje antikoagulantnog dejstva Mg soli fosforvolframove kiseline
VL  - 52
IS  - 4
SP  - 706
EP  - 707
UR  - https://hdl.handle.net/21.15107/rcub_farfar_364
ER  - 

@conference{
author = "Filipović, Ivana M. and Kuntić, Vesna and Mioč, Ubavka B.",
year = "2002",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "Investigated of anticoagulation effects of Mg salt of phosphotungstic acid, Ispitivanje antikoagulantnog dejstva Mg soli fosforvolframove kiseline",
volume = "52",
number = "4",
pages = "706-707",
url = "https://hdl.handle.net/21.15107/rcub_farfar_364"
}

Filipović, I. M., Kuntić, V.,& Mioč, U. B.. (2002). Investigated of anticoagulation effects of Mg salt of phosphotungstic acid. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije, Beograd., 52(4), 706-707.
https://hdl.handle.net/21.15107/rcub_farfar_364

Filipović IM, Kuntić V, Mioč UB. Investigated of anticoagulation effects of Mg salt of phosphotungstic acid. in Arhiv za farmaciju. 2002;52(4):706-707.
https://hdl.handle.net/21.15107/rcub_farfar_364 .

Filipović, Ivana M., Kuntić, Vesna, Mioč, Ubavka B., "Investigated of anticoagulation effects of Mg salt of phosphotungstic acid" in Arhiv za farmaciju, 52, no. 4 (2002):706-707,
https://hdl.handle.net/21.15107/rcub_farfar_364 .

TY  - CONF
AU  - Bošnjaković, N
AU  - Uskoković-Marković, Snežana
AU  - Mioč, Ubavka B.
PY  - 2002
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/398
AB  - Amongst the investigated salts of tungstophosphoric acid (WPA), special attention has been paid to barium salt of WPA (BaHWPA), because of its different behavior in comparison with other WPA salts. In order to complete the characterization of this salt we performed IR, Raman and photoluminescent spectroscopy as well as conductivity measurements. The obtained spectra were compared with the spectra of other large-strong cation salts. A very wide photoluminescent spectrum of the investigated compound in the visible range, with an emission maximum at 630 nm was recorded. There are some indications that this photoluminescence effect arose from a phase transformation at about 60°C, caused by the reversible reduction of tungsten ion (W 6+ + e ⇔ W 5+ ). This phase transformation of BaHWPA has already been observed in previous dielectric studies. Specific structural characteristics of BaHWPA affect the mechanism of proton conductivity.
PB  - Trans Tech Publications Ltd
C3  - Current Research in Advanced Materials and Processes
T1  - Characterization of the barium salt of 12-tungstophosphoric acid by spectroscopic methods
VL  - 413
SP  - 135
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_farfar_398
ER  - 

@conference{
author = "Bošnjaković, N and Uskoković-Marković, Snežana and Mioč, Ubavka B.",
year = "2002",
abstract = "Amongst the investigated salts of tungstophosphoric acid (WPA), special attention has been paid to barium salt of WPA (BaHWPA), because of its different behavior in comparison with other WPA salts. In order to complete the characterization of this salt we performed IR, Raman and photoluminescent spectroscopy as well as conductivity measurements. The obtained spectra were compared with the spectra of other large-strong cation salts. A very wide photoluminescent spectrum of the investigated compound in the visible range, with an emission maximum at 630 nm was recorded. There are some indications that this photoluminescence effect arose from a phase transformation at about 60°C, caused by the reversible reduction of tungsten ion (W 6+ + e ⇔ W 5+ ). This phase transformation of BaHWPA has already been observed in previous dielectric studies. Specific structural characteristics of BaHWPA affect the mechanism of proton conductivity.",
publisher = "Trans Tech Publications Ltd",
journal = "Current Research in Advanced Materials and Processes",
title = "Characterization of the barium salt of 12-tungstophosphoric acid by spectroscopic methods",
volume = "413",
pages = "135-140",
url = "https://hdl.handle.net/21.15107/rcub_farfar_398"
}

Bošnjaković, N., Uskoković-Marković, S.,& Mioč, U. B.. (2002). Characterization of the barium salt of 12-tungstophosphoric acid by spectroscopic methods. in Current Research in Advanced Materials and Processes
Trans Tech Publications Ltd., 413, 135-140.
https://hdl.handle.net/21.15107/rcub_farfar_398

Bošnjaković N, Uskoković-Marković S, Mioč UB. Characterization of the barium salt of 12-tungstophosphoric acid by spectroscopic methods. in Current Research in Advanced Materials and Processes. 2002;413:135-140.
https://hdl.handle.net/21.15107/rcub_farfar_398 .

Bošnjaković, N, Uskoković-Marković, Snežana, Mioč, Ubavka B., "Characterization of the barium salt of 12-tungstophosphoric acid by spectroscopic methods" in Current Research in Advanced Materials and Processes, 413 (2002):135-140,
https://hdl.handle.net/21.15107/rcub_farfar_398 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Uskoković-Marković, Snežana
AU  - Nedić, Zoran P.
AU  - Bošnjaković, Nada S.
PY  - 2000
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/263
AB  - In this paper the latest results of our continuing investigation of heteropoly acids and their salts are reported. Specially attention was paid to the influence of cations on the dynamic equilibrium of protonic species, as well as on the structure of the host lattice itself, i.e., the Keggin anions. The investigations were done by IR and Raman spectroscopy within the range of 1200-40 cm-1.
AB  - U ovom radu saopšteni su poslednji rezultati naših sistematskih ispitivanja heteropolikiselina i njihovih soli. Posebna pažnja posvećena je uticaju katjona na dinamičku ravnotežu protonskih vrsta, kao i na strukturu kristalne rešetke, odnosno Keginovih anjona. Ispitivanja su vršena metodama infracrvene i ramanske spektroskopije u oblasti 1200-40 cm-1. Dobijeni rezultati su važni za objašnjenje mehanizma provodljivosti, kao i za rešavanje problema praktične primene ovih jedinjenja kao čvrstih elektrolita. PR Projekat Ministarstva nauke Republike Srbije.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - A spectroscopic investigation of 12-tungstophosphoric acid alkali salts
T1  - Spektralno ispitivanje soli alkalnih elemenata 12-volframfosforne kiseline
VL  - 65
IS  - 5-6
SP  - 399
EP  - 406
UR  - https://hdl.handle.net/21.15107/rcub_farfar_263
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Uskoković-Marković, Snežana and Nedić, Zoran P. and Bošnjaković, Nada S.",
year = "2000",
abstract = "In this paper the latest results of our continuing investigation of heteropoly acids and their salts are reported. Specially attention was paid to the influence of cations on the dynamic equilibrium of protonic species, as well as on the structure of the host lattice itself, i.e., the Keggin anions. The investigations were done by IR and Raman spectroscopy within the range of 1200-40 cm-1., U ovom radu saopšteni su poslednji rezultati naših sistematskih ispitivanja heteropolikiselina i njihovih soli. Posebna pažnja posvećena je uticaju katjona na dinamičku ravnotežu protonskih vrsta, kao i na strukturu kristalne rešetke, odnosno Keginovih anjona. Ispitivanja su vršena metodama infracrvene i ramanske spektroskopije u oblasti 1200-40 cm-1. Dobijeni rezultati su važni za objašnjenje mehanizma provodljivosti, kao i za rešavanje problema praktične primene ovih jedinjenja kao čvrstih elektrolita. PR Projekat Ministarstva nauke Republike Srbije.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "A spectroscopic investigation of 12-tungstophosphoric acid alkali salts, Spektralno ispitivanje soli alkalnih elemenata 12-volframfosforne kiseline",
volume = "65",
number = "5-6",
pages = "399-406",
url = "https://hdl.handle.net/21.15107/rcub_farfar_263"
}

Mioč, U. B., Todorović, M. R., Uskoković-Marković, S., Nedić, Z. P.,& Bošnjaković, N. S.. (2000). A spectroscopic investigation of 12-tungstophosphoric acid alkali salts. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 65(5-6), 399-406.
https://hdl.handle.net/21.15107/rcub_farfar_263

Mioč UB, Todorović MR, Uskoković-Marković S, Nedić ZP, Bošnjaković NS. A spectroscopic investigation of 12-tungstophosphoric acid alkali salts. in Journal of the Serbian Chemical Society. 2000;65(5-6):399-406.
https://hdl.handle.net/21.15107/rcub_farfar_263 .

Mioč, Ubavka B., Todorović, Marija R., Uskoković-Marković, Snežana, Nedić, Zoran P., Bošnjaković, Nada S., "A spectroscopic investigation of 12-tungstophosphoric acid alkali salts" in Journal of the Serbian Chemical Society, 65, no. 5-6 (2000):399-406,
https://hdl.handle.net/21.15107/rcub_farfar_263 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Uskoković-Marković, Snežana
AU  - Nedić, Zoran P.
AU  - Stamenković, Vojislav
AU  - Čajkovski, Tamara
PY  - 2000
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/262
AB  - In this paper local processes and structural phase transformations of the copper salt of 12-tungstophosphoric acid are investigated. The structural phase transformations were followed through bands, characteristic for the host lattice, in the IR and Raman spectra. The results of these investigations, as well as those of XRPD analysis and impedance measurements as a function of temperature show that some local processes provoke the change in the secondary structure of the Keggin anions.
AB  - U ovom radu ispitivani su lokalni procesi i strukturne fazne transformacije soli bakra 12-volframfosforne kiseline. Strukturne fazne transformacije praćene su preko traka karakterističnih za kristalnu rešetku u infracrvenim i ramanskim spektrima. Rezultati ovih ispitivanja, kao i oni dobiveni rendgeno-strukturnom analizom i iz impedansnih merenja, odnosno provodljivost u funkciji temperature, pokazuju da je fazna transformacija vezana za promene lokalne strukture, tj. sekundarne strukture Keginovih anjona. PR Projekat Ministarstva nauke Republike Srbije.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy
T1  - IR i ramanska ispitivanja strukturnih modifikacija bakarne soli 12-volframfosforne kiseline
VL  - 65
IS  - 5-6
SP  - 407
EP  - 415
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6292
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Uskoković-Marković, Snežana and Nedić, Zoran P. and Stamenković, Vojislav and Čajkovski, Tamara",
year = "2000",
abstract = "In this paper local processes and structural phase transformations of the copper salt of 12-tungstophosphoric acid are investigated. The structural phase transformations were followed through bands, characteristic for the host lattice, in the IR and Raman spectra. The results of these investigations, as well as those of XRPD analysis and impedance measurements as a function of temperature show that some local processes provoke the change in the secondary structure of the Keggin anions., U ovom radu ispitivani su lokalni procesi i strukturne fazne transformacije soli bakra 12-volframfosforne kiseline. Strukturne fazne transformacije praćene su preko traka karakterističnih za kristalnu rešetku u infracrvenim i ramanskim spektrima. Rezultati ovih ispitivanja, kao i oni dobiveni rendgeno-strukturnom analizom i iz impedansnih merenja, odnosno provodljivost u funkciji temperature, pokazuju da je fazna transformacija vezana za promene lokalne strukture, tj. sekundarne strukture Keginovih anjona. PR Projekat Ministarstva nauke Republike Srbije.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy, IR i ramanska ispitivanja strukturnih modifikacija bakarne soli 12-volframfosforne kiseline",
volume = "65",
number = "5-6",
pages = "407-415",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6292"
}

Mioč, U. B., Todorović, M. R., Uskoković-Marković, S., Nedić, Z. P., Stamenković, V.,& Čajkovski, T.. (2000). Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 65(5-6), 407-415.
https://hdl.handle.net/21.15107/rcub_vinar_6292

Mioč UB, Todorović MR, Uskoković-Marković S, Nedić ZP, Stamenković V, Čajkovski T. Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy. in Journal of the Serbian Chemical Society. 2000;65(5-6):407-415.
https://hdl.handle.net/21.15107/rcub_vinar_6292 .

Mioč, Ubavka B., Todorović, Marija R., Uskoković-Marković, Snežana, Nedić, Zoran P., Stamenković, Vojislav, Čajkovski, Tamara, "Structural modifications of Cu(II) 12-tungstophosphoric acid salt studied by IR and Raman spectroscopy" in Journal of the Serbian Chemical Society, 65, no. 5-6 (2000):407-415,
https://hdl.handle.net/21.15107/rcub_vinar_6292 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Colomban, Ph
AU  - Nedić, Zoran P.
AU  - Uskoković-Marković, Snežana
AU  - Borcić, ID
PY  - 1999
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/225
AB  - This contribution presents the results of the investigation of Mg2+ and Ca2+ 12-tungstophosphoric acid (WPA) salts as superionic proton conductors. We have identified protonic species as charge carriers in several hydration degrees of these salts by IR spectroscopy at low, room and high temperatures. In the IR spectra we have found the characteristic frequencies for H3O+, OH-, H2O, H5O2+. Also, we have investigated the dynamic equilibrium between protonic entities in the function of temperature, as well as the nature and the strength of hydrogen bonds in those compounds. During the process of calcination, these salts undergo a few phase transformations. The temperatures of interest for the further investigations were taken from data of thermal analysis.
PB  - Elsevier Science BV, Amsterdam
T2  - South African Journal of Botany
T1  - Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid
VL  - 125
IS  - 1-4
SP  - 425
EP  - 429
DO  - 10.1016/S0167-2738(99)00205-2
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, Marija R. and Colomban, Ph and Nedić, Zoran P. and Uskoković-Marković, Snežana and Borcić, ID",
year = "1999",
abstract = "This contribution presents the results of the investigation of Mg2+ and Ca2+ 12-tungstophosphoric acid (WPA) salts as superionic proton conductors. We have identified protonic species as charge carriers in several hydration degrees of these salts by IR spectroscopy at low, room and high temperatures. In the IR spectra we have found the characteristic frequencies for H3O+, OH-, H2O, H5O2+. Also, we have investigated the dynamic equilibrium between protonic entities in the function of temperature, as well as the nature and the strength of hydrogen bonds in those compounds. During the process of calcination, these salts undergo a few phase transformations. The temperatures of interest for the further investigations were taken from data of thermal analysis.",
publisher = "Elsevier Science BV, Amsterdam",
journal = "South African Journal of Botany",
title = "Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid",
volume = "125",
number = "1-4",
pages = "425-429",
doi = "10.1016/S0167-2738(99)00205-2"
}

Mioč, U. B., Todorović, M. R., Colomban, P., Nedić, Z. P., Uskoković-Marković, S.,& Borcić, I.. (1999). Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid. in South African Journal of Botany
Elsevier Science BV, Amsterdam., 125(1-4), 425-429.
https://doi.org/10.1016/S0167-2738(99)00205-2

Mioč UB, Todorović MR, Colomban P, Nedić ZP, Uskoković-Marković S, Borcić I. Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid. in South African Journal of Botany. 1999;125(1-4):425-429.
doi:10.1016/S0167-2738(99)00205-2 .

Mioč, Ubavka B., Todorović, Marija R., Colomban, Ph, Nedić, Zoran P., Uskoković-Marković, Snežana, Borcić, ID, "Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid" in South African Journal of Botany, 125, no. 1-4 (1999):425-429,
https://doi.org/10.1016/S0167-2738(99)00205-2 . .

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Malešev, Dušan
AU  - Radović, ZV
AU  - Kosanić, MM
AU  - Mioč, Ubavka B.
AU  - Vukojević, Vladana
PY  - 1998
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/189
AB  - The composition and stability constant of a UO2(II)-rutin complex in 70% ethanol were determined by suitable spectrophotometric methods and pH measurement. UO2(II) ion and rutin (3,3',4',5,7-pentahydroxyflavone-3-rhamnoglucoside) form a 1:1 complex in which the UO2(II) ion is linked to rutin through the carbonyl and 5-hydroxyl group. The concentration stability constant of the complex, log beta(1), ranged from 6.57 at pH 4.00 to 4.72 at pH 7.00. Conditions for spectrophotometric determination of rutin, by complex formation with UO2(II) ion, were investigated. Beer's law was obeyed in the concentration range from 1.0 x 10(-5) to 2.0 x 10(-4) M for rutin. Determination of rutin in Rutinion forte tablets was demonstrated.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Agricultural and Food Chemistry
T1  - Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol
VL  - 46
IS  - 12
SP  - 5139
EP  - 5142
DO  - 10.1021/jf980376k
ER  - 

@article{
author = "Kuntić, Vesna and Malešev, Dušan and Radović, ZV and Kosanić, MM and Mioč, Ubavka B. and Vukojević, Vladana",
year = "1998",
abstract = "The composition and stability constant of a UO2(II)-rutin complex in 70% ethanol were determined by suitable spectrophotometric methods and pH measurement. UO2(II) ion and rutin (3,3',4',5,7-pentahydroxyflavone-3-rhamnoglucoside) form a 1:1 complex in which the UO2(II) ion is linked to rutin through the carbonyl and 5-hydroxyl group. The concentration stability constant of the complex, log beta(1), ranged from 6.57 at pH 4.00 to 4.72 at pH 7.00. Conditions for spectrophotometric determination of rutin, by complex formation with UO2(II) ion, were investigated. Beer's law was obeyed in the concentration range from 1.0 x 10(-5) to 2.0 x 10(-4) M for rutin. Determination of rutin in Rutinion forte tablets was demonstrated.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Agricultural and Food Chemistry",
title = "Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol",
volume = "46",
number = "12",
pages = "5139-5142",
doi = "10.1021/jf980376k"
}

Kuntić, V., Malešev, D., Radović, Z., Kosanić, M., Mioč, U. B.,& Vukojević, V.. (1998). Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol. in Journal of Agricultural and Food Chemistry
Amer Chemical Soc, Washington., 46(12), 5139-5142.
https://doi.org/10.1021/jf980376k

Kuntić V, Malešev D, Radović Z, Kosanić M, Mioč UB, Vukojević V. Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol. in Journal of Agricultural and Food Chemistry. 1998;46(12):5139-5142.
doi:10.1021/jf980376k .

Kuntić, Vesna, Malešev, Dušan, Radović, ZV, Kosanić, MM, Mioč, Ubavka B., Vukojević, Vladana, "Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol" in Journal of Agricultural and Food Chemistry, 46, no. 12 (1998):5139-5142,
https://doi.org/10.1021/jf980376k . .

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Kosanić, M
AU  - Malešev, Dušan
AU  - Radović, Z
AU  - Mioč, Ubavka B.
PY  - 1998
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/176
AB  - The composition and stability constant of the UO2(II)-hesperidin complex were determined by suitable spectrophotometric methods and pH-metric measurements. II was found that the uranil ion and hesperidin form a 1:2 complex in which the uranil ion is linked to the hesperidin molecule through the carbonyl and the 5-hydroxyl group. The relative stability constant, log K-2, ranged from 5.77 at pH 4.0 to 7.00 at pH 6.0. The conditions for the spectrophotometric determination of hesperidin, by means of reaction of the complex formation reaction, were investigated. Beer's law was obeyed up to 2.0x10(-5) mol dm(-3) hesperidin.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol
VL  - 63
IS  - 7
SP  - 565
EP  - 572
UR  - https://hdl.handle.net/21.15107/rcub_farfar_176
ER  - 

@article{
author = "Kuntić, Vesna and Kosanić, M and Malešev, Dušan and Radović, Z and Mioč, Ubavka B.",
year = "1998",
abstract = "The composition and stability constant of the UO2(II)-hesperidin complex were determined by suitable spectrophotometric methods and pH-metric measurements. II was found that the uranil ion and hesperidin form a 1:2 complex in which the uranil ion is linked to the hesperidin molecule through the carbonyl and the 5-hydroxyl group. The relative stability constant, log K-2, ranged from 5.77 at pH 4.0 to 7.00 at pH 6.0. The conditions for the spectrophotometric determination of hesperidin, by means of reaction of the complex formation reaction, were investigated. Beer's law was obeyed up to 2.0x10(-5) mol dm(-3) hesperidin.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol",
volume = "63",
number = "7",
pages = "565-572",
url = "https://hdl.handle.net/21.15107/rcub_farfar_176"
}

Kuntić, V., Kosanić, M., Malešev, D., Radović, Z.,& Mioč, U. B.. (1998). Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 63(7), 565-572.
https://hdl.handle.net/21.15107/rcub_farfar_176

Kuntić V, Kosanić M, Malešev D, Radović Z, Mioč UB. Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol. in Journal of the Serbian Chemical Society. 1998;63(7):565-572.
https://hdl.handle.net/21.15107/rcub_farfar_176 .

Kuntić, Vesna, Kosanić, M, Malešev, Dušan, Radović, Z, Mioč, Ubavka B., "Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol" in Journal of the Serbian Chemical Society, 63, no. 7 (1998):565-572,
https://hdl.handle.net/21.15107/rcub_farfar_176 .

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Filipović, IM
AU  - Mioč, Ubavka B.
AU  - Jelić, SB
PY  - 1997
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/165
AB  - The influence of various crystalohydrates of tungstophosphoric acid (WPA): 29-WPA, 6-WPA, 0-WPA and ''D''-WPA, as well as of various crystalohydrates of neutral Na salt (Na(3)WPA): 16-Na(3)WPA, 6-Na(3)WPA and 0-Na(3)WPA, were tested for their tit vitro effect on plasma coagulation by ''screening'' tests - by measuring aPTT, TT and PT. It was found that different crystalohydrates of WPA prolong aPTT according to the number of water molecules, slightly reduce TT, no matter of water molecules, and have no significant effect on PT: Na(3)WPA acts in the same way as WPA, but in a ten times higher concentration. aPTT prolongation is caused mainly by inhibition of Factor Ut. When WPA is added to plasma together with heparin, aPTT is more prolonged and TT is shortened, while Na(3)WPA with heparin prolongs both aPTT and TT. The proposed mechanism of WPA and Na(3)WPA activity is the charge interaction with ATIII and through hydrogen bonding with Factor IX.
PB  - Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd
T2  - Jugoslovenska medicinska biohemija
T1  - Anticoagulant effect of various crystallohydrates of tungstophosphoric acid and their Na salt and proposed acting mechanism
VL  - 16
IS  - 1
SP  - 15
EP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_farfar_165
ER  - 

@article{
author = "Kuntić, Vesna and Filipović, IM and Mioč, Ubavka B. and Jelić, SB",
year = "1997",
abstract = "The influence of various crystalohydrates of tungstophosphoric acid (WPA): 29-WPA, 6-WPA, 0-WPA and ''D''-WPA, as well as of various crystalohydrates of neutral Na salt (Na(3)WPA): 16-Na(3)WPA, 6-Na(3)WPA and 0-Na(3)WPA, were tested for their tit vitro effect on plasma coagulation by ''screening'' tests - by measuring aPTT, TT and PT. It was found that different crystalohydrates of WPA prolong aPTT according to the number of water molecules, slightly reduce TT, no matter of water molecules, and have no significant effect on PT: Na(3)WPA acts in the same way as WPA, but in a ten times higher concentration. aPTT prolongation is caused mainly by inhibition of Factor Ut. When WPA is added to plasma together with heparin, aPTT is more prolonged and TT is shortened, while Na(3)WPA with heparin prolongs both aPTT and TT. The proposed mechanism of WPA and Na(3)WPA activity is the charge interaction with ATIII and through hydrogen bonding with Factor IX.",
publisher = "Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd",
journal = "Jugoslovenska medicinska biohemija",
title = "Anticoagulant effect of various crystallohydrates of tungstophosphoric acid and their Na salt and proposed acting mechanism",
volume = "16",
number = "1",
pages = "15-19",
url = "https://hdl.handle.net/21.15107/rcub_farfar_165"
}

Kuntić, V., Filipović, I., Mioč, U. B.,& Jelić, S.. (1997). Anticoagulant effect of various crystallohydrates of tungstophosphoric acid and their Na salt and proposed acting mechanism. in Jugoslovenska medicinska biohemija
Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd., 16(1), 15-19.
https://hdl.handle.net/21.15107/rcub_farfar_165

Kuntić V, Filipović I, Mioč UB, Jelić S. Anticoagulant effect of various crystallohydrates of tungstophosphoric acid and their Na salt and proposed acting mechanism. in Jugoslovenska medicinska biohemija. 1997;16(1):15-19.
https://hdl.handle.net/21.15107/rcub_farfar_165 .

Kuntić, Vesna, Filipović, IM, Mioč, Ubavka B., Jelić, SB, "Anticoagulant effect of various crystallohydrates of tungstophosphoric acid and their Na salt and proposed acting mechanism" in Jugoslovenska medicinska biohemija, 16, no. 1 (1997):15-19,
https://hdl.handle.net/21.15107/rcub_farfar_165 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Davidović, M
AU  - Stanisavljević, B.R
AU  - Todorović, Marija R.
AU  - Nedić, Zoran P.
AU  - Uskoković-Marković, Snežana
PY  - 1996
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/130
AB  - Heteropoly acids arc well known as supcrionic protonic conductors at room temperature. The conductivity depends upon the temperature and relative humidity of the surrounding. Recent results show that the conductivity is very much affected by monovalent exchange counter-ions. In this work the effect of monovalent ions (Li + , Na + , K + and Cs + ) on the nature and structure of hydrogen bonds, the presence of different protonic species as charge carriers, and the dynamic equilibrium of proton species as a function of temperature and ion characteristics were investigated.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts
VL  - 61
IS  - 9
SP  - 759
EP  - 765
UR  - https://hdl.handle.net/21.15107/rcub_farfar_130
ER  - 

@article{
author = "Mioč, Ubavka B. and Davidović, M and Stanisavljević, B.R and Todorović, Marija R. and Nedić, Zoran P. and Uskoković-Marković, Snežana",
year = "1996",
abstract = "Heteropoly acids arc well known as supcrionic protonic conductors at room temperature. The conductivity depends upon the temperature and relative humidity of the surrounding. Recent results show that the conductivity is very much affected by monovalent exchange counter-ions. In this work the effect of monovalent ions (Li + , Na + , K + and Cs + ) on the nature and structure of hydrogen bonds, the presence of different protonic species as charge carriers, and the dynamic equilibrium of proton species as a function of temperature and ion characteristics were investigated.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts",
volume = "61",
number = "9",
pages = "759-765",
url = "https://hdl.handle.net/21.15107/rcub_farfar_130"
}

Mioč, U. B., Davidović, M., Stanisavljević, B.R, Todorović, M. R., Nedić, Z. P.,& Uskoković-Marković, S.. (1996). Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 61(9), 759-765.
https://hdl.handle.net/21.15107/rcub_farfar_130

Mioč UB, Davidović M, Stanisavljević B, Todorović MR, Nedić ZP, Uskoković-Marković S. Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts. in Journal of the Serbian Chemical Society. 1996;61(9):759-765.
https://hdl.handle.net/21.15107/rcub_farfar_130 .

Mioč, Ubavka B., Davidović, M, Stanisavljević, B.R, Todorović, Marija R., Nedić, Zoran P., Uskoković-Marković, Snežana, "Spectroscopic investigation of the effects of monovalent cations on the dynamics of protonic species in the hydrates of 12-tungstophosphoric acid salts" in Journal of the Serbian Chemical Society, 61, no. 9 (1996):759-765,
https://hdl.handle.net/21.15107/rcub_farfar_130 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Kuntić, Vesna
AU  - Nedić, Zoran P.
AU  - Filipović, I.M
AU  - Jelić, S.B
PY  - 1996
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/141
AB  - The influence of the Li and Na salts of 12-tungstophosphoric acid H3P W12O40(WPA) was tested for in vitro effects on blood coagulation. It was found that only Li3WPA shows anticoagulant effects, but compared with WPA activity, the activity of Li salt is diminished. IR spectroscopy was used to define the reaction between these salts, and coagulation proteins. The appearance of bands characteristic of oxonium ion (H3O+) in the IR spectra indicates blocking of the active center of the protein through a very strong hydrogen bond.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy
VL  - 61
IS  - 9
SP  - 767
EP  - 771
UR  - https://hdl.handle.net/21.15107/rcub_farfar_141
ER  - 

@article{
author = "Mioč, Ubavka B. and Kuntić, Vesna and Nedić, Zoran P. and Filipović, I.M and Jelić, S.B",
year = "1996",
abstract = "The influence of the Li and Na salts of 12-tungstophosphoric acid H3P W12O40(WPA) was tested for in vitro effects on blood coagulation. It was found that only Li3WPA shows anticoagulant effects, but compared with WPA activity, the activity of Li salt is diminished. IR spectroscopy was used to define the reaction between these salts, and coagulation proteins. The appearance of bands characteristic of oxonium ion (H3O+) in the IR spectra indicates blocking of the active center of the protein through a very strong hydrogen bond.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy",
volume = "61",
number = "9",
pages = "767-771",
url = "https://hdl.handle.net/21.15107/rcub_farfar_141"
}

Mioč, U. B., Kuntić, V., Nedić, Z. P., Filipović, I.M,& Jelić, S.B. (1996). Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 61(9), 767-771.
https://hdl.handle.net/21.15107/rcub_farfar_141

Mioč UB, Kuntić V, Nedić ZP, Filipović I, Jelić S. Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy. in Journal of the Serbian Chemical Society. 1996;61(9):767-771.
https://hdl.handle.net/21.15107/rcub_farfar_141 .

Mioč, Ubavka B., Kuntić, Vesna, Nedić, Zoran P., Filipović, I.M, Jelić, S.B, "Anticoagulant effect of tungstophosphoric acid salt studied by IR spectroscopy" in Journal of the Serbian Chemical Society, 61, no. 9 (1996):767-771,
https://hdl.handle.net/21.15107/rcub_farfar_141 .