Results 171 to 180 of about 4,470 (211)
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Preparation of thermosensitive PNIPAAm hydrogels with superfast response
Chemical Communications, 2004A simple, effective strategy was developed and demonstrated to prepare thermosensitive poly(N-isopropylacrylamide) (PNIPAAm) hydrogel with a superfast response by using an organic solvent, tetrahydrofuran (THF), as a foaming agent as well as a precipitation agent during the polymerization/crosslinking in water at room temperature.
Xian-Zheng, Zhang, Chih-Chang, Chu
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Colloid and Polymer Science, 2016
A series of well-defined thermoresponsive ABA-type triblock copolymers poly(N-isopropylacrylamide)-b-poly(n-octadecylacrylate)-b-poly(N-isopropylacrylamide) (PNIPAAm-b-PODA-b-PNIPAAm) consisting of two blocks of PNIPAAm and one block of PODA in different ratio are prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization.
Jie Wu +6 more
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A series of well-defined thermoresponsive ABA-type triblock copolymers poly(N-isopropylacrylamide)-b-poly(n-octadecylacrylate)-b-poly(N-isopropylacrylamide) (PNIPAAm-b-PODA-b-PNIPAAm) consisting of two blocks of PNIPAAm and one block of PODA in different ratio are prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization.
Jie Wu +6 more
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Acta Biomaterialia, 2012 The ability to harvest cell sheets grown on thermoresponsive polymers, such as poly(N-isopropylacrylamide) (pNIPAAm), has been widely studied for use in tissue engineering applications.
Ge Zhang, Bi-Min Zhang Newby
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PNIPAAM grafted particle monoliths
2009Crosslinked polystyrene latex particles generated with surfactant free emulsion polymerization were functionalized with thin layer of ATRP initiator on the surface. The functionalized particles were aggregated as physical networks using high shear techniques.
Mittal, V., Matsko, N.B.
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“Click” PNIPAAm hydrogels – a comprehensive study of structure and properties
Polymer Chemistry, 2013A detailed understanding of the structural and chemical features of hydrogels is vital when it comes to modifying and tailoring these materials into potential beneficial tools for different disciplines, such as drug delivery, membrane science, etc. However the characterization of hydrogels using conventional analytical techniques is a major challenge ...
Ooi, Huey Wen +3 more
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Characterization and cell material interactions of PEGylated PNIPAAM nanoparticles
Colloids and Surfaces B: Biointerfaces, 2010The aim of this study was to investigate the haemocompatibility of poly(N-isopropylacrylamide)-co-poly(ethylene glycol), PNIPAAM-PEG based nanoparticles and the influence of poly(ethylene glycol), PEG on the interactions of nanoparticles with cells.
Nany, Gulati +4 more
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Thermosensitive PNIPAAm cryogel with superfast and stable oscillatory properties
Chemical Communications, 2003Through copolymerization/crosslinking in dimethyl sulfoxide (DMSO) at temperature below the melting point of DMSO, we demonstrated a novel poly(N-isopropylacrylamide) (PNIPAAm) hydrogel with regularly oriented micromatrix; the superfast/stable oscillatory hydration-dehydration character of this hydrogel would find wide applications in biomedical field.
Xian-Zheng, Zhang, Chih-Chang, Chu
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Grafting PNIPAAm from β-barrel shaped transmembrane nanopores
Biomaterials, 2016The research on protein-polymer conjugates by grafting from the surface of proteins has gained significant interest in the last decade. While there are many studies with globular proteins, membrane proteins have remained untouched to the best of our knowledge.
Himanshu Charan +8 more
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Novel Renewable Immunosensors Based on Temperature-Sensitive PNIPAAm Bioconjugates
Biosensors and Bioelectronics, 2008A novel renewable immunosensor was created comprising a temperature-controlled surface composed of poly(n-isopropylacrylamide) (PNIPAAm)-antibody conjugates that could reversibly bind the antigen. Bovine serum albumin (BSA) and the corresponding antibody (anti-BSA) were chosen as a model antibody-antigen system to demonstrate the concept. The thermally
Sheng Meng, Jilie Kong
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Thermo‐Responsive PNIPAAm Copolymers with Hydrophobic Spacers
Macromolecular Symposia, 2007AbstractWe have synthesised and characterised three sets of acryloyl(amino‐acid)/NIPAAm co‐polymers. Three different co‐monomers were synthesised and copolymerized with N‐isopropylacrylamide (NIPAAm) by free radical polymerization in different molar ratios (12:1, 9:1, and 6:1). All series contain aliphatic spacers and are carboxylic terminated.
Florentina Stoica +3 more
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