Results 71 to 80 of about 2,523 (182)

Effect of Gold Nanoparticle Size on Regulated Catalytic Activity of Temperature-Responsive Polymer−Gold Nanoparticle Hybrid Microgels

open access: yesGels
Gold nanoparticles (AuNPs) possess attractive electronic, optical, and catalytic properties, enabling many potential applications. Poly(N-isopropyl acrylamide) (PNIPAAm) is a temperature-responsive polymer that changes its hydrophilicity upon a slight ...
Palida Pongsanon   +3 more
doaj   +1 more source

Preparation of thermoswitchable micro capillary force valves inside polydimethylsiloxane microfluidic channels(聚二甲基硅氧烷微流控通道内温控表面张力微阀的研制)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2012
介绍一种在全聚二甲基硅氧烷(PDMS)微流控芯片通道中制备温控毛细管力微阀的简易方法.通过二苯甲酮诱导的光引发聚合接枝反应,在PDMS表面接枝聚丙烯酸(PAA)或温敏高聚物聚N-异丙基丙烯酰胺(PNIPAAm), 使高度疏水的PDMS表面改性为亲水(接枝PAA)或温控亲疏水性可调(接枝PNIPAAm).在此基础上,建立了在PDMS通道内的“二步区域接枝法”,即在PDMS大部分通道表面引入亲水性PAA,而在需要设置温控毛细管力微阀的部位接枝PNIPAAm ...
ZHANGYi-wen(张宜文)   +4 more
doaj   +1 more source

Characterization of a Novel Thermoresponsive Polysaccharide Grafted with PNIPAAM.

open access: yes, 2010
Abstract The uncharged temperature responsive polymer MHEC-g-PNIPAAM (modified hydroxyethylcellulose graft poly(N-isopropylacrylamide)), and its anionic analogue were characterized by the aid of dynamic light scattering (DLS), rheology, turbidity and rheo-small angle light scattering (rheo-SALS).
openaire   +2 more sources

Enhanced and sustained topical ocular delivery of cyclosporine A in thermosensitive hyaluronic acid-based in situ forming microgels

open access: yesInternational Journal of Nanomedicine, 2013
Yijun Wu, Jing Yao, Jianping Zhou, Fatima Zohra Dahmani State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang, Nanjing, People’s Republic of China Abstract: For nearly a decade, thermoresponsive ophthalmic in situ
Wu Y, Yao J, Zhou J, Dahmani FZ
doaj  

Dual-responsive reduced graphene oxides prepared by radiation-initiated living radical grafting polymerization

open access: yesFushe yanjiu yu fushe gongyi xuebao
Temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) was grafted onto the surface of graphene oxide (GO) via reversible addition-fragmentation chain transfer polymerization initiated by γ-ray radiation.
WENG Hanqin   +6 more
doaj   +1 more source

Shape-Memory Property Acting as a Switch to Change the Surface Property of the Film

open access: yesApplied Sciences
Shape-memory polyester films having functional groups were prepared and further grafted onto poly(N-isopropylacrylamide) (PNIPAAm) via atom-transfer radical polymerization.
Takumi Yoshida, Toru Hoshi, Takao Aoyagi
doaj   +1 more source

Thermal-responsive β-cyclodextrin-based magnetic hydrogel as a de novo nanomedicine for chemo/hyperthermia treatment of cancerous cells

open access: yesHeliyon
A novel thermal-responsive β-cyclodextrin-based magnetic hydrogel [β-cyclodextrin-graft-poly(N-isopropylacrylamide)/Fe3O4 (β-CD-g-PNIPAAm/Fe3O4)] was fabricated as a novel nanomedicine for chemo/hyperthermia treatment of cancer cells.
Morteza Eskandani   +3 more
doaj   +1 more source

Biodegradable in situ gelling delivery systems containing pilocarpine as new antiglaucoma formulations: effect of a mercaptoacetic acid/N-isopropylacrylamide molar ratio

open access: yesDrug Design, Development and Therapy, 2013
Jui-Yang Lai Institute of Biochemical and Biomedical Engineering, Biomedical Engineering Research Center, Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan Abstract: Ocular drug delivery is one of the most commonly used treatment
Lai JY
doaj  

Thermoresponsive block-copolymer brush-modified interfaces for effective fabrication of hepatocyte sheets

open access: yesMaterials & Design
Hepatic tissue engineering has been investigated for the treatment of liver disease. One promising tissue is the hepatocyte sheet, cultured in temperature-responsive cell culture dishes.
Kenichi Nagase   +3 more
doaj   +1 more source

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