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pro vyhledávání: '"Mark S. Gebert"'
Publikováno v:
Advanced Materials. 18:2009-2013
Publikováno v:
Chemistry of Materials. 18:4055-4064
Organosilica sol−gels functionalized with amino groups are used for the controlled release of encapsulated molecules including biomolecules. These gels prepared by hydrolysis of aminosilane precursors are characterized by water-induced changes in n
Publikováno v:
Journal of Pharmacy and Pharmacology. 50:845-850
In-vitro/in-vivo correlations (IVIVC) are useful for predicting in-vivo results from in-vitro data. An IVIVC has been used to optimize a hydrocolloidal-based matrix tablet designed to be bioequivalent to an existing once-daily diltiazem HCl*** produc
Autor:
Mark S. Gebert, Richard W. Pekala
Publikováno v:
Chemistry of Materials. 6:220-226
Publikováno v:
Macromolecules. 25:4160-4166
Diffusion-limited interactions between benzil- (RAPS) and anthracene-labeled polystyrene (TAPS) were studied by phosphorescence quenching in polystyrene-toluene solutions. For both RAPS and TAPS the quenching rate constant was found to decrease with
Autor:
Mark S. Gebert, John M. Torkelson
Publikováno v:
Polymer. 31:2402-2410
A new technique for synthesizing benzil-labelled polystyrenes has been developed. This new procedure has advantages over an older synthesis by Horie and Mita in that it involves fewer and less complicated synthetic steps. In addition, the new synthet
Publikováno v:
Biotechnology and bioengineering. 87(1)
Association of extracellular protein product with flocculated cells reduces product yield. Here, partitioning of the enzyme subtilisin between the liquid and polyelectrolyte-flocculated and sedimented Bacillus increased as the polymer dosage was incr
Publikováno v:
Biotechnology and bioengineering. 87(1)
Characterization of flocculation for cell removal from fermentation broth via polyelectrolyte addition is commonly based on qualitative methods such as physical appearance of the floc. The use of zeta potential as a quantitative measure of floc chara
Publikováno v:
Pharmaceutical development and technology. 6(2)
Poly(vinyl alcohol) has not previously been examined in much detail as a controlled release polymer for use in pharmaceutical formulations. However, this food grade polymer has barrier and tensile properties which make it attractive for such applicat
Publikováno v:
Pharmaceutical development and technology. 3(3)
The purpose of this study was to assess certain pharmaceutical attributes of guar galactomannan, a hydrocolloid polysaccharide obtained from the endosperm of the leguminous plant Cyamopsis tetragonolobus (L.), following purification using both litera