نتایج جستجو برای: polyethers

تعداد نتایج: 219  

Journal: :Lab on a chip 2008
C Holtze A C Rowat J J Agresti J B Hutchison F E Angilè C H J Schmitz S Köster H Duan K J Humphry R A Scanga J S Johnson D Pisignano D A Weitz

Drops of water-in-fluorocarbon emulsions have great potential for compartmentalizing both in vitro and in vivo biological systems; however, surfactants to stabilize such emulsions are scarce. Here we present a novel class of fluorosurfactants that we synthesize by coupling oligomeric perfluorinated polyethers (PFPE) with polyethyleneglycol (PEG). We demonstrate that these block copolymer surfac...

2014
Cheng-Chung Lee Manuel Maestre-Reyna Kai-Cheng Hsu Hao-Ching Wang Chia-I Liu Wen-Yih Jeng Li-Ling Lin Richard Wood Chia-Cheng Chou Jinn-Moon Yang Andrew H-J Wang

Crown ethers are small, cyclic polyethers that have found wide-spread use in phase-transfer catalysis and, to a certain degree, in protein chemistry. Crown ethers readily bind metallic and organic cations, including positively charged amino acid side chains. We elucidated the crystal structures of several protein-crown ether co-crystals grown in the presence of 18-crown-6. We then employed biop...

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