Control of electroosmosis in coated quartz capillaries
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A photoresponsive soft interface reversibly controls wettability and cell adhesion by conformational changes in a spiropyran-conjugated amphiphilic block copolymer
2017, Acta BiomaterialiaCitation Excerpt :Therefore, introducing a number of Sp molecules into a polymer chain to induce dynamic movement and immobilizing these macromolecules on a surface to form a functional soft interface would be a promising strategy to control cellular behaviors on the surface. Polyethylene glycol (PEG) is a polymer material that is frequently used to modify a surface to effectively repel proteins and cells [20–24]. However, the conformation of the PEG chain cannot be controlled effectively at arbitrary times.
Measurement of electroosmotic flow in capillary and microchip electrophoresis
2007, Journal of Chromatography AHighly efficient protein separations in capillary electrophoresis using a supported bilayer/diblock copolymer coating
2006, Journal of Chromatography AMiniaturized fluorescence detection chip for capillary electrophoresis immunoassay of agricultural herbicide atrazine
2006, Analytica Chimica ActaCitation Excerpt :After coating with 10% DS solution, the channel was rinsed for 15 min to form the second anionic layer, followed by the coating of 5% PB solution over the anionic layer for 20 min. These successive multiple ionic-polymer (SMIL) coating enables the PDMS chip to enhance the electroosmotic stability [30–33]. The current of photodiode in microchip was measured by a source and measurement system (Keithley 2601) and the fluorescence of channel was also recorded by PMT through microscope objective lens.
Different methods for surface modification of hydrophilic particulates with polymers
2005, Colloids and Surfaces A: Physicochemical and Engineering AspectsCell Surface Models on Polymer Supports - From Artificial Membranes to Native Cells
2005, Advances in Planar Lipid Bilayers and LiposomesCitation Excerpt :To date, one of the most widely used ECM models is the poly(ethylene glycol) (PEG) brushes [38]. For example, the covalent grafting of the PEG [39–41] or oligo-EG [42,43] chains on planar substrates and capillaries can avoid non-specific adsorption of proteins. On the other hand, incorporation of lipids with PEG chains (PEG lipids) into vesicles results in a remarkable increase in the blood circulation time [44,45].
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Universities Space Research Association.