Entrapment of live microbial cells in electropolymerized polyaniline and their use as urea biosensor.

Biodegradable alginate-derived polymeric surfactants (APSs) with a linear alkyl group (C8, C12, C16) were synthesized by oxidation followed by reductive amination of 2,3-dialdehydic alginate. The oxidized alginates and all APSs were characterized by spectral and X-ray diffractometry analysis. The sonicated suspension test was employed to form self-aggregates in aqueous solution. In the case of 40% CHO-C8 APS, the lowest interfacial tension, 31.5 mNm−1, was obtained at the c.m.c. value of 1.35 g L−1. A biodegradability test on the 30% CHO-C12 APS system suggested that it would be attacked by a soil microorganism, Aspergillus niger.

Preparation and characterization of hydrophobically modified alginate

Polymer science for macroencapsulation of cells for central nervous system transplantation

Towards the implementation of an ion-exchange system for recovery of fluoride commodity chemicals. Kinetic and dynamic studies

/pdf/tissue-engineering-applied-to-the-retinal-prosthesis-pgavpszoew.pdf

Tissue engineering applied to the retinal prosthesis: Neurotrophin-eluting polymeric hydrogel coatings

SummaryIt has been found that the three-phase heterogeneous reaction of propane sultone with hydrolyzed macroporous glycidylmethacrylate copolymers in an aqueous alkaline medium proceeds to a higher degree in presence of phase transfer catalyst. The best results were obtained using tetra(n-butyl)ammonium hydroxide. An important finding is the increase in the degree of transformation of the reaction in flow arrangement compared with the batch procedure. The influence of phase transfer catalyst is also more effective. The reaction is discussed with respect to the properties of the products, i.e. of the overall and surface contents of groups introduced into the reaction, of the specific surface area and specific pore volume of sulfopropylated copolymers.

Reactive polymers: 43. Reaction of hydrolyzed copoly(glycidylmethacrylate-ethylenedimethacrylate with propane sultone in the presence of phase transfer catalyst

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Reactive polymers: 43. Reaction of hydrolyzed copoly(glycidylmethacrylate-ethylenedimethacrylate with propane sultone in the presence of phase transfer catalyst