Results 201 to 210 of about 19,742 (240)
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Thermoresponsive microgel-based materials
Chemical Society Reviews, 2009With the continued development of thermoresponsive colloidal hydrogel particles, a number of groups have begun to exploit their properties to create dynamic materials self-assembled from those components. The fundamental details of how those building blocks are assembled, the component functionality, and the geometry or length-scales present in the ...
L Andrew, Lyon +4 more
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Flower type microgels: 1. Synthesis of the microgels
Polymer, 1997Poly(2-vinyl pyridine-b-styrene-b-2-vinyl pyridine) BAB type block copolymers were synthesized by anionic living polymerization. The micelle formation of these BAB type triblock copolymers was carried out in toluene and toluene/cyclohexane mixture, and estimated with dynamic light scattering for the polymer solutions.
Reiko Saito, Koji Ishizu
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Multicompartment Core/Shell Microgels
Journal of the American Chemical Society, 2010Multiresponsive poly(N-isopropylacrylamide-co-acrylic acid) (pNIPAm-AAc) microgels containing mechanically and thermodynamically decoupled poly(N-isopropylmethacrylamide) (pNIPMAm) cores have been prepared. To achieve this structure, pNIPMAm microgels were used as templates in the synthesis of an N,N'-(1,2-dihydroxyethylene)bisacrylamide (DHEA) cross ...
Xiaobo, Hu, Zhen, Tong, L Andrew, Lyon
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Transdermal microgels of gentamicin
European Journal of Pharmaceutics and Biopharmaceutics, 2013Phospholipid-modified solid lipid microparticles (SLMs) of Phospholipon® 90G and 90H encapsulating the hydrophilic drug, gentamicin were produced and loaded into three polymeric hydrogels of Poloxamer 407 and polyacrylic acids (Carbopols® 971P and 974P). The SLMs were characterized by morphology and particle size, drug encapsulation efficiency, thermal
P O, Nnamani +5 more
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Polymer dynamics in responsive microgels: influence of cononsolvency and microgel architecture
Physical Chemistry Chemical Physics, 2012The dynamics of polymers on the nm and ns scales inside responsive microgels was probed by means of Neutron Spin Echo (NSE) experiments. Four different microgels were studied: poly(N-isopropylacrylamide) (PNIPAM) and poly(N,N-diethylacrylamide) (PDEAAM) microgels, a P(NIPAM-co-DEAAM) copolymer microgel and a core-shell microgel with a PDEAAM core and a
Scherzinger, C. +3 more
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Fabrication methods of biopolymeric microgels and microgel-based hydrogels
Food Hydrocolloids, 2017Abstract Biopolymeric microgels made of proteins and/or polysaccharides provide a renewable source for enteral nutrition, interface stabilization, controlled release applications and etc. These microgels consist of physically, chemically, or enzymatically cross-linked biopolymer molecules that trap and hold water within the particle network. They can
Toktam Farjami, Ashkan Madadlou
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Macromolecular Symposia, 2009
AbstractSummary: Microgel particles have received an increasing interest in the biomedical field. Temperature‐sensitive microgels gained particular interest due to their potential use as controlled drug delivery systems. With the objective to produce new thermoresponsive biocompatible microgels, the synthesis and characterization of two families of ...
Ainara Imaz, Jacqueline Forcada
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AbstractSummary: Microgel particles have received an increasing interest in the biomedical field. Temperature‐sensitive microgels gained particular interest due to their potential use as controlled drug delivery systems. With the objective to produce new thermoresponsive biocompatible microgels, the synthesis and characterization of two families of ...
Ainara Imaz, Jacqueline Forcada
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Hyaluronic Acid-Based Microgels and Microgel Networks for Vocal Fold Regeneration
Biomacromolecules, 2006Vocal fold scarring disrupts the viscoelastic properties of the lamina propria that are critical for normal phonation. There is a clinical need for the development of advanced biomaterials that approximate the mechanical properties of the lamina propria for in vivo vocal fold regeneration.
Xinqiao, Jia +7 more
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2011
Providing a vital link between chemistry and physics on the nanoscale, this book offers concise coverage of the entire topic in five major sections, beginning with synthesis of microgel particles and continuing with their physical properties. The phase behavior and dynamics of resulting microgel suspensions feature in the third section, followed by ...
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Providing a vital link between chemistry and physics on the nanoscale, this book offers concise coverage of the entire topic in five major sections, beginning with synthesis of microgel particles and continuing with their physical properties. The phase behavior and dynamics of resulting microgel suspensions feature in the third section, followed by ...
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Microgels 4: The preparation of novel microgels and their applications
Die Angewandte Makromolekulare Chemie, 1996AbstractThis paper describes studies on the formation of microgels from high functionality mixtures of monomers which are able to polymerise by a step‐growth process to polyurethanes in the specially selected solvent butan‐2‐one. Using the reactants poly(ethylene glycol) 6000, 1,2,6‐hexanetriol and biscyclohexylmethane‐4,4′‐diisocyanate in formulations
Neil B Graham +2 more
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