Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Ira S. Buckner"'
Publikováno v:
Molecular Pharmaceutics. 19:3959-3972
Specific noncovalent drug-polymer interactions were analytically identified using Raman and Fourier transform infrared spectroscopy for amorphous solid dispersions (ASD) formed between either chlorpropamide or tolbutamide and polyvinylpyrrolidone vin
Publikováno v:
Molecular Pharmaceutics. 19:303-317
A molecular descriptor known as R3m (the R-GETAWAY
Autor:
Ira S. Buckner, Rahul Roopwani
Publikováno v:
Journal of Pharmaceutical Sciences. 110:2157-2166
Deformation mechanism and strain rate sensitivity of gabapentin powder was investigated in this work. Heckel analysis, specific surface area and indentation hardness measurements revealed an intermediate yield pressure and brittle fracture as the dom
Publikováno v:
Journal of pharmaceutical sciences. 112(1)
Evaluation of different amorphous solid dispersion carrier matrices is enabled by active pharmaceutical ingredient (API) structure-based predictions. This study compares the utility of Hansen Solubility Parameters with the R3m molecular descriptor fo
Publikováno v:
AAPS PharmSciTech. 21
The true density of an amorphous solid is an important parameter for studying and modeling materials behavior. Experimental measurements of density using helium pycnometry are standard but may be prevented if the material is prone to rapid recrystall
Publikováno v:
Journal of Pharmaceutical Sciences. 107:334-343
The expansion of a novel in silico model for the prediction of the dispersability of 18 model compounds with polyvinylpyrrolidone-vinyl acetate copolymer is described. The molecular descriptor R3m (atomic mass weighted 3rd-order autocorrelation index
Publikováno v:
AAPS PharmSciTech. 18:2570-2578
Cefuroxime axetil (CFA), an ester prodrug of cefuroxime exists as a pair of diastereoemers, namely isomer A and isomer B. To enable phase diagram construction, crystallization of the diastereomers of CFA from the commercially available amorphous drug
Autor:
Ira S. Buckner, Rahul Roopwani
Publikováno v:
Journal of pharmaceutical sciences. 108(10)
The role of co-processing in improving tablet mechanical properties was investigated in this work. Gabapentin was used as the model compound owing to its poor tableting properties such as low tensile strength, strain rate sensitivity, high ejection f
Publikováno v:
AAPS PharmSciTech. 18:904-912
Epithelial flux and permeability across bovine olfactory tissue were compared when levodopa (L-DOPA) was loaded in different physical states. Aqueous solution of L-DOPA was prepared in Krebs-Ringer buffer (KRB), at a concentration (0.75 mg/mL) verifi
Publikováno v:
Applied spectroscopy. 71(8)
Near-infrared chemical imaging (NIR-CI) combines spectroscopy with digital imaging, enabling spatially resolved analysis and characterization of pharmaceutical samples. Hardness and relative density are critical quality attributes (CQA) that affect t