TY  - JOUR
AU  - Vasiljević, Ivana
AU  - Turković, Erna
AU  - Piller, Michael
AU  - Mirković, Miljana
AU  - Zimmer, Andreas
AU  - Aleksić, Ivana
AU  - Ibrić, Svetlana
AU  - Parojčić, Jelena
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4318
AB  - 3D printing in dosage forms fabrication is in the focus of researchers, however, the attempts in multiparticulate units (MPUs) preparation are scarce. The aim of this study was to fabricate different size MPUs by selective laser sintering (SLS), using different polymers, and investigate their processability based on the SeDeM Expert System approach. MPUs (1- or 2-mm size) were prepared with model drug (ibuprofen or caffeine), polymer (poly(ethylene)oxide (PEO), ethyl cellulose (EC) or methacrylic acid-ethyl acrylate copolymer (MA-EA)) and printing aid. Comprehensive sample characterization was performed and experimentally obtained parameters were mathematically transformed and evaluated using the SeDeM Expert System framework. The obtained samples exhibited irregular shape, despite the spherical printing object design. Polymer incorporated notably affected MPUs properties. The obtained samples exhibited low bulk density, good flowability-, as well as stability-related parameters, which indicated their suitability for filling into capsules or sachets. Low density values implied that compressibility enhancing excipients may be required for MPUs incorporation in tablets. Samples containing EC and MA-EA were found suitable for compression, due to high compacts tensile strength. The obtained results indicate that SeDeM Expert System may extended from powder compressibility evaluation tool to framework facilitating powders/multiparticulate units processing.
PB  - Elsevier B.V.
T2  - International Journal of Pharmaceutics
T1  - Processability evaluation of multiparticulate units prepared by selective laser sintering using the SeDeM Expert System approach
VL  - 629
DO  - 10.1016/j.ijpharm.2022.122337
ER  - 

@article{
author = "Vasiljević, Ivana and Turković, Erna and Piller, Michael and Mirković, Miljana and Zimmer, Andreas and Aleksić, Ivana and Ibrić, Svetlana and Parojčić, Jelena",
year = "2022",
abstract = "3D printing in dosage forms fabrication is in the focus of researchers, however, the attempts in multiparticulate units (MPUs) preparation are scarce. The aim of this study was to fabricate different size MPUs by selective laser sintering (SLS), using different polymers, and investigate their processability based on the SeDeM Expert System approach. MPUs (1- or 2-mm size) were prepared with model drug (ibuprofen or caffeine), polymer (poly(ethylene)oxide (PEO), ethyl cellulose (EC) or methacrylic acid-ethyl acrylate copolymer (MA-EA)) and printing aid. Comprehensive sample characterization was performed and experimentally obtained parameters were mathematically transformed and evaluated using the SeDeM Expert System framework. The obtained samples exhibited irregular shape, despite the spherical printing object design. Polymer incorporated notably affected MPUs properties. The obtained samples exhibited low bulk density, good flowability-, as well as stability-related parameters, which indicated their suitability for filling into capsules or sachets. Low density values implied that compressibility enhancing excipients may be required for MPUs incorporation in tablets. Samples containing EC and MA-EA were found suitable for compression, due to high compacts tensile strength. The obtained results indicate that SeDeM Expert System may extended from powder compressibility evaluation tool to framework facilitating powders/multiparticulate units processing.",
publisher = "Elsevier B.V.",
journal = "International Journal of Pharmaceutics",
title = "Processability evaluation of multiparticulate units prepared by selective laser sintering using the SeDeM Expert System approach",
volume = "629",
doi = "10.1016/j.ijpharm.2022.122337"
}

Vasiljević, I., Turković, E., Piller, M., Mirković, M., Zimmer, A., Aleksić, I., Ibrić, S.,& Parojčić, J.. (2022). Processability evaluation of multiparticulate units prepared by selective laser sintering using the SeDeM Expert System approach. in International Journal of Pharmaceutics
Elsevier B.V.., 629.
https://doi.org/10.1016/j.ijpharm.2022.122337

Vasiljević I, Turković E, Piller M, Mirković M, Zimmer A, Aleksić I, Ibrić S, Parojčić J. Processability evaluation of multiparticulate units prepared by selective laser sintering using the SeDeM Expert System approach. in International Journal of Pharmaceutics. 2022;629.
doi:10.1016/j.ijpharm.2022.122337 .

Vasiljević, Ivana, Turković, Erna, Piller, Michael, Mirković, Miljana, Zimmer, Andreas, Aleksić, Ivana, Ibrić, Svetlana, Parojčić, Jelena, "Processability evaluation of multiparticulate units prepared by selective laser sintering using the SeDeM Expert System approach" in International Journal of Pharmaceutics, 629 (2022),
https://doi.org/10.1016/j.ijpharm.2022.122337 . .

TY  - CONF
AU  - Vasiljević, Ivana
AU  - Turković, Erna
AU  - German Ilić, Ilija
AU  - Zimmer, Andreas
AU  - Parojčić, Jelena
AU  - Aleksić, Ivana
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5315
AB  - Software assisted image analysis represents emerging approach, which may provide useful insight
into sample properties [1]. However, its application in the pharmaceutical field is scarce. The aim of
this work was to investigate the applicability of software assisted porosity evaluation in liquisolid
pellets characterization. ...
PB  - Medical University of Gdansk
PB  - Polskie Towarzystwo Farmaceutyczne
C3  - Proceedings CESPT 2021: 13th Central European Symposium on Pharmaceutical Technology: Contemporary pharmaceutical technology - addressing challenges of innovative and generic medicinal products, 16th-18th September 2021, Gdansk, Poland
T1  - Applicability of software assisted porosity evaluation in liquisolid pellets characterization
SP  - 75
EP  - 75
UR  - https://hdl.handle.net/21.15107/rcub_farfar_5315
ER  - 

@conference{
author = "Vasiljević, Ivana and Turković, Erna and German Ilić, Ilija and Zimmer, Andreas and Parojčić, Jelena and Aleksić, Ivana",
year = "2021",
abstract = "Software assisted image analysis represents emerging approach, which may provide useful insight
into sample properties [1]. However, its application in the pharmaceutical field is scarce. The aim of
this work was to investigate the applicability of software assisted porosity evaluation in liquisolid
pellets characterization. ...",
publisher = "Medical University of Gdansk, Polskie Towarzystwo Farmaceutyczne",
journal = "Proceedings CESPT 2021: 13th Central European Symposium on Pharmaceutical Technology: Contemporary pharmaceutical technology - addressing challenges of innovative and generic medicinal products, 16th-18th September 2021, Gdansk, Poland",
title = "Applicability of software assisted porosity evaluation in liquisolid pellets characterization",
pages = "75-75",
url = "https://hdl.handle.net/21.15107/rcub_farfar_5315"
}

Vasiljević, I., Turković, E., German Ilić, I., Zimmer, A., Parojčić, J.,& Aleksić, I.. (2021). Applicability of software assisted porosity evaluation in liquisolid pellets characterization. in Proceedings CESPT 2021: 13th Central European Symposium on Pharmaceutical Technology: Contemporary pharmaceutical technology - addressing challenges of innovative and generic medicinal products, 16th-18th September 2021, Gdansk, Poland
Medical University of Gdansk., 75-75.
https://hdl.handle.net/21.15107/rcub_farfar_5315

Vasiljević I, Turković E, German Ilić I, Zimmer A, Parojčić J, Aleksić I. Applicability of software assisted porosity evaluation in liquisolid pellets characterization. in Proceedings CESPT 2021: 13th Central European Symposium on Pharmaceutical Technology: Contemporary pharmaceutical technology - addressing challenges of innovative and generic medicinal products, 16th-18th September 2021, Gdansk, Poland. 2021;:75-75.
https://hdl.handle.net/21.15107/rcub_farfar_5315 .

Vasiljević, Ivana, Turković, Erna, German Ilić, Ilija, Zimmer, Andreas, Parojčić, Jelena, Aleksić, Ivana, "Applicability of software assisted porosity evaluation in liquisolid pellets characterization" in Proceedings CESPT 2021: 13th Central European Symposium on Pharmaceutical Technology: Contemporary pharmaceutical technology - addressing challenges of innovative and generic medicinal products, 16th-18th September 2021, Gdansk, Poland (2021):75-75,
https://hdl.handle.net/21.15107/rcub_farfar_5315 .

TY  - JOUR
AU  - Vasiljević, Ivana
AU  - Turković, Erna
AU  - Nenadović, Snežana
AU  - Mirković, Miljana
AU  - Zimmer, Andreas
AU  - Parojčić, Jelena
AU  - Aleksić, Ivana
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3921
AB  - Liquisolid systems are emerging formulation approach for poorly soluble drugs, based on adsorption/absorption of drug dispersion and obtaining free-flowing powder with good compressibility. SeDeM Expert System represents a powder processability evaluation method. It may provide additional insight into liquisolid systems critical quality attributes, but the contribution of this approach remains to be explored. The aims of this study were: pellet preparation by combination of liquisolid technology and water granulation/extrusion, evaluation of liquisolid based systems (pellets/admixtures) and investigation into the applicability of SeDeM Expert System in liquisolid systems characterization. Pellets/admixtures were prepared with microcrystalline cellulose as carrier and crospovidone/silicon dioxide as coating agent. Ibuprofen solution in polyethylene glycol 400 was used as liquid phase. After comprehensive sample characterization, experimentally obtained parameters were mathematically transformed and evaluated in the SeDeM Expert System framework. Pellets exhibited low aspect ratio and excellent flowability, despite liquid load up to 52.2%. The investigated liquisolid admixtures exhibited good flowability and faster drug dissolution than pellets. Single pellet crushing test results exhibited strong correlation with compact indentation hardness and may be used as indentation hardness predictor. SeDeM Expert System provides useful insight into liquisolid system processability and comparative evaluation and it may facilitate final solid dosage form development.
PB  - Elsevier B.V.
T2  - International Journal of Pharmaceutics
T1  - Investigation into liquisolid system processability based on the SeDeM Expert System approach
VL  - 605
DO  - 10.1016/j.ijpharm.2021.120847
ER  - 

@article{
author = "Vasiljević, Ivana and Turković, Erna and Nenadović, Snežana and Mirković, Miljana and Zimmer, Andreas and Parojčić, Jelena and Aleksić, Ivana",
year = "2021",
abstract = "Liquisolid systems are emerging formulation approach for poorly soluble drugs, based on adsorption/absorption of drug dispersion and obtaining free-flowing powder with good compressibility. SeDeM Expert System represents a powder processability evaluation method. It may provide additional insight into liquisolid systems critical quality attributes, but the contribution of this approach remains to be explored. The aims of this study were: pellet preparation by combination of liquisolid technology and water granulation/extrusion, evaluation of liquisolid based systems (pellets/admixtures) and investigation into the applicability of SeDeM Expert System in liquisolid systems characterization. Pellets/admixtures were prepared with microcrystalline cellulose as carrier and crospovidone/silicon dioxide as coating agent. Ibuprofen solution in polyethylene glycol 400 was used as liquid phase. After comprehensive sample characterization, experimentally obtained parameters were mathematically transformed and evaluated in the SeDeM Expert System framework. Pellets exhibited low aspect ratio and excellent flowability, despite liquid load up to 52.2%. The investigated liquisolid admixtures exhibited good flowability and faster drug dissolution than pellets. Single pellet crushing test results exhibited strong correlation with compact indentation hardness and may be used as indentation hardness predictor. SeDeM Expert System provides useful insight into liquisolid system processability and comparative evaluation and it may facilitate final solid dosage form development.",
publisher = "Elsevier B.V.",
journal = "International Journal of Pharmaceutics",
title = "Investigation into liquisolid system processability based on the SeDeM Expert System approach",
volume = "605",
doi = "10.1016/j.ijpharm.2021.120847"
}

Vasiljević, I., Turković, E., Nenadović, S., Mirković, M., Zimmer, A., Parojčić, J.,& Aleksić, I.. (2021). Investigation into liquisolid system processability based on the SeDeM Expert System approach. in International Journal of Pharmaceutics
Elsevier B.V.., 605.
https://doi.org/10.1016/j.ijpharm.2021.120847

Vasiljević I, Turković E, Nenadović S, Mirković M, Zimmer A, Parojčić J, Aleksić I. Investigation into liquisolid system processability based on the SeDeM Expert System approach. in International Journal of Pharmaceutics. 2021;605.
doi:10.1016/j.ijpharm.2021.120847 .

Vasiljević, Ivana, Turković, Erna, Nenadović, Snežana, Mirković, Miljana, Zimmer, Andreas, Parojčić, Jelena, Aleksić, Ivana, "Investigation into liquisolid system processability based on the SeDeM Expert System approach" in International Journal of Pharmaceutics, 605 (2021),
https://doi.org/10.1016/j.ijpharm.2021.120847 . .

TY  - JOUR
AU  - Vasiljević, Ivana
AU  - Turković, Erna
AU  - Piller, Michael
AU  - Zimmer, Andreas
AU  - Parojčić, Jelena
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3763
AB  - Increasing expectations to understand material properties and process parameters impact on drug product per-formance resulted in increased efforts towards evaluation of drug/excipients mixtures, particularly during com-pression. Several research groups introduced material classification methodologies based on compressionbehaviour. In the present work, the applicability of different compression behaviour assessment approaches:Manufacturability Classification System (MCS), SeDeM Expert System and Compression Behaviour ClassificationSystem (CBCS) on multiparticulate units (MPU) characterization was evaluated. MPUs were prepared either byextrusion/spheronization or kneading/granulation and comprehensive sample characterization was conducted.Experimentally determined parameters were mathematically transformed and evaluated in the framework ofMCS, SeDeM and CBCS. The investigated approaches were successfully applied for MPU compressibility assess-ment and were able to discriminate sample characteristics affected by different manufacturing methods. The re-sults obtained provide insight into multiparticulate properties, contribute to understanding of factors governingtheir compressibility and may serve as useful tool in multiparticulate dosage forms development.
PB  - Elsevier B.V.
T2  - Powder Technology
T1  - An investigation into applicability of different compression behaviour assessment approaches for multiparticulate units characterization
VL  - 379
SP  - 526
EP  - 536
DO  - 10.1016/j.powtec.2020.10.085
ER  - 

@article{
author = "Vasiljević, Ivana and Turković, Erna and Piller, Michael and Zimmer, Andreas and Parojčić, Jelena",
year = "2021",
abstract = "Increasing expectations to understand material properties and process parameters impact on drug product per-formance resulted in increased efforts towards evaluation of drug/excipients mixtures, particularly during com-pression. Several research groups introduced material classification methodologies based on compressionbehaviour. In the present work, the applicability of different compression behaviour assessment approaches:Manufacturability Classification System (MCS), SeDeM Expert System and Compression Behaviour ClassificationSystem (CBCS) on multiparticulate units (MPU) characterization was evaluated. MPUs were prepared either byextrusion/spheronization or kneading/granulation and comprehensive sample characterization was conducted.Experimentally determined parameters were mathematically transformed and evaluated in the framework ofMCS, SeDeM and CBCS. The investigated approaches were successfully applied for MPU compressibility assess-ment and were able to discriminate sample characteristics affected by different manufacturing methods. The re-sults obtained provide insight into multiparticulate properties, contribute to understanding of factors governingtheir compressibility and may serve as useful tool in multiparticulate dosage forms development.",
publisher = "Elsevier B.V.",
journal = "Powder Technology",
title = "An investigation into applicability of different compression behaviour assessment approaches for multiparticulate units characterization",
volume = "379",
pages = "526-536",
doi = "10.1016/j.powtec.2020.10.085"
}

Vasiljević, I., Turković, E., Piller, M., Zimmer, A.,& Parojčić, J.. (2021). An investigation into applicability of different compression behaviour assessment approaches for multiparticulate units characterization. in Powder Technology
Elsevier B.V.., 379, 526-536.
https://doi.org/10.1016/j.powtec.2020.10.085

Vasiljević I, Turković E, Piller M, Zimmer A, Parojčić J. An investigation into applicability of different compression behaviour assessment approaches for multiparticulate units characterization. in Powder Technology. 2021;379:526-536.
doi:10.1016/j.powtec.2020.10.085 .

Vasiljević, Ivana, Turković, Erna, Piller, Michael, Zimmer, Andreas, Parojčić, Jelena, "An investigation into applicability of different compression behaviour assessment approaches for multiparticulate units characterization" in Powder Technology, 379 (2021):526-536,
https://doi.org/10.1016/j.powtec.2020.10.085 . .