[EN] TREATMENT OF SUGAR SOLUTIONS<br/>[FR] TRAITEMENT DE SOLUTIONS DE SUCRE
申请人:WIVENHOE TECHNOLOGY LTD
公开号:WO2005051968A1
公开(公告)日:2005-06-09
A process for treating a solution containing sugar and α-oxoaldehydes, comprising the step of adding a catalyst which comprises an optionally substituted histidine amino acid, such that the α-oxoaldehydes are catalytically converted to aldonic acids.
Hydrophilized polydiorganosiloxane vinylic crosslinkers and uses thereof
申请人:Novartis AG
公开号:US10081697B2
公开(公告)日:2018-09-25
The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane units each having one methyl substituent and one monovalent C4-C40 organic radical substituent having two to six hydroxyl groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0.035 to about 0.15, and (2) two terminal (meth)acryloyl groups. The hydrophilized polydiorganosiloxane vinylic crosslinker has a number average molecular weight of from about 3000 Daltons to about 80,000 Daltons. The present invention is also related to a silicone hydrogel contact lens, which comprises repeating units derived from a hydrophilized polydiorganosiloxane vinylic crosslinker of the invention.
Dually derivatized chitosan nanoparticles and methods of making and using the same for gene transfer in vivo
申请人:ENGENE, INC.
公开号:US10456481B2
公开(公告)日:2019-10-29
Provided herein is chitosan-derivative nanoparticle comprising chitosan functionalized with a cationic amino acid and a hydrophilic polyol; and methods of making and using same, e.g., for gene delivery in vivo.
The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.