Претраживање
Приказ резултата 11-20 од 1888
Optimization of extraction yield and chemical characterization of optimal extract from Juglans nigra L. leaves
(Elsevier, 2020)
The extraction yield of Juglans nigra L. leaves was assessed at different ethanol concen-trations (0–96% (v/v)) and solvent-to-solid ratios (5–20 kg kg−1). The response surfacemethodology (RSM) and artificial neural network ...
Preparation and characterisation of amino-functionalized pore-expanded mesoporous silica for carbon dioxide capture
(Springer Nature, 2021)
In this study, the preparation of some large-pore ordered mesoporous silicas using a proper surfactant with different swelling agents was carried out. The synthesis of conventional SBA-15 was modified to obtain pore-expanded ...
Paracetamol extended release FDM 3D printlets: Evaluation of formulation variables on printability and drug release
(International Journal of Pharmaceutics, 2021)
Paracetamol printlets were prepared via hot-melt extrusion process and fused deposition modelling, using two types of backbone polymers. Polycaprolactone (PCL) and Polyethylene oxides (PEO) 100 K and 200 K were used, while ...
"Borderline" fluorotic region in Serbia: correlations among fluoride in drinking water, biomarkers of exposure and dental fluorosis in schoolchildren
(Springer, Dordrecht, 2016)
This study explores relation between dental fluorosis occurrence in schoolchildren, residents of Ritopek, a small local community near Belgrade, and fluoride exposure via drinking water. Additionally, fluoride levels were ...
Bioactivity of herbal tea of Hungarian thyme based on the composition of volatiles and polyphenolics
(Elsevier Science BV, Amsterdam, 2016)
Hungarian thyme (Thymus pannonicus All., Lamiaceae) is an aromatic herb used as traditional remedy, a refreshing beverage and a food aromatizer. Herbal teas, i.e., infusions, of Hungarian thyme from eight localities in ...
Derivative spectrophotometric method for determination of acidity constants of single step acid-base equilibria
(Elsevier Science BV, Amsterdam, 2001)
A general derivative spectrophotometric method for determination of acidity constants is developed. The method appears suitable in cases when classical spectrophotometry cannot be employed due to little differences in the ...
Validation of a high-performance liquid chromatography method for the determination of pancuronium in Pavulon injections
(Elsevier Science BV, Amsterdam, 2002)
A new high-performance liquid chromatography (HPLC) method was developed for the quality control of pancuronium bromide and its degradation products. The HPLC method used a 5-mum Supelcogel ODP-50 (150X4 cm) column with ...
Second-derivative spectrophotometric analysis of lidocaine and hydrocortisone acetate in suppositories
(ECV-Editio Cantor Verlag Medizin Naturwissenschaften, Aulendorf, 2004)
In this paper the second-derivative spectrophotometric method for the simultaneous determination of lidocaine (CAS 137-58-6) and hydrocortisone acetate (CAS 50-03-3) in suppositories is described. One suppository contains ...
Cytotoxic and antioxidant activity of Achillea alexandri-regis
(Govi-Verlag Pharmazeutischer Verlag Gmbh, Eschborn, 2005)
The cytotoxicity and antioxidant properties of herb extracts of Achillea alexandri-regis were studied. Combined chloroform and ethylacetate extracts exhibited a pronounced cytotoxic effect against HeLa cancer cells (IC50 ...
Bacillus licheniformis levan as a functional biopolymer in topical drug dosage forms: From basic colloidal considerations to actual pharmaceutical application
(Elsevier, 2020)
Ongoing demand in sustainable and biocompatible drug dosage forms is reflected in the search for novel pharmaceutical excipients with equal properties. A group of microbial exopolysaccharides offers a variety of biopolymers ...