نتایج جستجو برای: nipam polymer

تعداد نتایج: 93135  

Journal: :Journal of colloid and interface science 2012
Justin O Zoppe Richard A Venditti Orlando J Rojas

Cellulose nanocrystals (CNCs) from ramie fibers are studied as stabilizers of oil-in-water emulsions. The phase behavior of heptane and water systems is studied, and emulsions stabilized by CNCs are analyzed by using drop sizing (light scattering) and optical, scanning, and freeze-fracture electron microscopies. Water-continuous Pickering emulsions are produced with cellulose nanocrystals (0.05...

2017
Jing Zhao Ming Zeng Kaiqiang Zheng Xinhua He Minqiang Xie Xiaoyi Fu

Thermoresponsive P(NIPAM-AA)/Fe3O4/SiO2 microspheres with surface holes serving as carriers were prepared using p-Fe3O4/SiO2 microspheres with a thermoresponsive copolymer. The p-Fe3O4/SiO2 microspheres was obtained using a modified Pickering method and chemical etching. The surface pore size of p-Fe3O4/SiO2 microspheres was in the range of 18.3 nm~37.2 nm and the cavity size was approximately ...

A. Schröder B. Pépin-Donat, C. Campillo C. Marques F. Quemeneur G. Maret M. Rinaudo

Giant Unilamellar Vesicles (GUVs) consisting in self-closed lipid bilayers of 0.5-100 µm diameter are considered as oversimplified models of cells because of their biological membrane and micrometric size while Large Unilamellar Vesicles (LUVs) of 100-500 nm diameter have applications in drug delivery. To improve structural and mechanical properties of these vesicles, we have developed two cate...

2009
Jim Moselhy Tasnim Vira Fei-Fei Liu Xiao Yu Wu

Thermoresponsive cationic nanogel (TCNG) networks based on N-isopropylacrylamide (NIPAM), 2-(dimethylamino)ethyl methacrylate (DMAEMA), and quaternary alkyl ammonium halide salts of DMAEMA (DMAEMAQ) were synthesized by dispersion polymerization technique. The thermoresponsive properties of TCNGs and TCNG-salmon sperm DNA (sasDNA) polyplexes were characterized in aqueous media of various pH and ...

Journal: :Nanotoxicology 2014
Nor H Abu Samah Charles M Heard

Stimulus-responsive nanogels have potential as carriers for drugs targeting the skin. It is important to estimate the biocompatibility of such materials with the skin since they are directly in contact upon application and may induce irritation or inflammation. In the current work, blank (drug-free) polyN-isopropylacrylamide (polyNIPAM), poly(NIPAM copolymerized butyl acrylate) [poly(NIPAM-co-B...

Journal: :Advanced Materials Interfaces 2022

Commonly, modification of surfaces with thermoresponsive polymers is performed using poly(N-isopropylacrylamide) (poly(NIPAM)). However, integration poly(NIPAM) a second polymer to obtain more complex copolymer structures has proven challenging due inherently poorly controllable polymerization characteristics acrylamides. In this study, (N-(2-methacryloyloxyethyl)pyrrolidone (NMEP) synthesized ...

Journal: :Molecules 2017
Jiachen Ma Luqing Zhang Bing Geng Umair Azhar Anhou Xu Shuxiang Zhang

In this work, a thermo-responsive and cross-linked fluoropolymer poly(2,2,2-Trifluoroethyl) methacrylate (PTFEMA) was successfully prepared by reversible addition-fragmentation chain transfer (RAFT) mediated aqueous polymerization with a thermo-responsive diblock poly(dimethylacrylamide-b-N-isopropylacrylamide) (PDMA-b-PNIPAM) that performed a dual function as both a nanoreactor and macro-RAFT ...

2002
M. Rinaudo C. Marques A. Schröder G. Maret

Giant Unilamellar Vesicles (GUVs) consisting in self-closed lipid bilayers of 0.5-100 μm diameter are considered as oversimplified models of cells because of their biological membrane and micrometric size while Large Unilamellar Vesicles (LUVs) of 100-500 nm diameter have applications in drug delivery. To improve structural and mechanical properties of these vesicles, we have developed two cate...

A. Schröder B. Pépin-Donat, C. Campillo C. Marques F. Quemeneur G. Maret M. Rinaudo

Giant Unilamellar Vesicles (GUVs) consisting in self-closed lipid bilayers of 0.5-100 µm diameter are considered as oversimplified models of cells because of their biological membrane and micrometric size while Large Unilamellar Vesicles (LUVs) of 100-500 nm diameter have applications in drug delivery. To improve structural and mechanical properties of these vesicles, we have developed two cate...

Journal: :Materials 2017
Jing Zhao Ming Zeng Kaiqiang Zheng Xinhua He Minqiang Xie Xiaoyi Fu

Thermoresponsive P(NIPAM-AA)/Fe₃O₄/SiO₂ microspheres with surface holes serving as carriers were prepared using p-Fe₃O₄/SiO₂ microspheres with a thermoresponsive copolymer. The p-Fe₃O₄/SiO₂ microspheres was obtained using a modified Pickering method and chemical etching. The surface pore size of p-Fe₃O₄/SiO₂ microspheres was in the range of 18.3 nm~37.2 nm and the cavity size was approximately ...

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