نتایج جستجو برای: nipam polymer

تعداد نتایج: 93135  

Journal: :Talanta 2014
Ruichen Dong Jinhua Li Hua Xiong Wenhui Lu Hailong Peng Lingxin Chen

Thermosensitive molecularly imprinted polymers (T-MIPs) on porous carriers were prepared via the synergy of dual functional monomers of 4-vinylpyridine (VP) and N-isopropylacrylamide (NIPAM), for selective recognition and controlled adsorption and release of bisphenol A (BPA) by the temperature regulation. The porous polymer supporter was synthesized by multistep swelling of polystyrene and the...

Journal: :journal of medical signals and sensors 0
seyed salman zakariaee mikaeil molazadeh abbas takavar alireza shirazi asghar mesbahi ahad zeinali

in radiation cancer treatments, the most of the side effects could be minimized using a proper dosimeter. gel dosimeter is the only three‑dimensional dosimeter and magnetic resonance imaging (mri) is the gold standard method for gel dosimeter readout. because of hard accessibility and high cost of sample reading by mri systems, some other alternative methods were developed. the optical computed...

Journal: :international journal of nano dimension 0
b. pépin-donat laboratoire d’electronique moléculaire organique et hybride / umr 5819 spram (cea-cnrs-ujf) / drfmc / cea-grenoble, 38054 grenoble cedex 9 (france). c. campillo laboratoire d’electronique moléculaire organique et hybride / umr 5819 spram (cea-cnrs-ujf) / drfmc / cea-grenoble, 38054 grenoble cedex 9 (france). f. quemeneur laboratoire d’electronique moléculaire organique et hybride / umr 5819 spram (cea-cnrs-ujf) / drfmc / cea-grenoble, 38054 grenoble cedex 9 (france). m. rinaudo centre de recherches sur les macromolécules végétales (cermav-cnrs) affiliated with joseph fourier university, bp53, 38041 grenoble cedex 9 (france). c. marques institut charles sadron, up22 cnrs ulp, 67083 strasbourg cedex, france. a. schröder institut charles sadron, up22 cnrs ulp, 67083 strasbourg cedex, france. 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...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
Jun-Hyun Kim T Randall Lee

In this paper, we describe a unique strategy for preparing discrete composite nanoparticles consisting of a large gold core (60-150 nm in diameter) surrounded by a thermally responsive nontoxic hydrogel polymer derived from the polymerization of N-isopropylacrylamide (NIPAM) or a mixture of NIPAM and acrylic acid. We synthesize these composite nanoparticles at room temperature by inducing the g...

2017
Wei-Ji Wang Zheng-Song Qiu Han-Yi Zhong Wei-An Huang Wen-Hao Dai

Emulsifier-free poly(methyl methacrylate-styrene) [P(MMA-St)] nanospheres with an average particle size of 100 nm were synthesized in an isopropyl alcohol-water medium by a solvothermal method. Then, through radical graft copolymerization of thermo-sensitive monomer N-isopropylacrylamide (NIPAm) and hydrophilic monomer acrylic acid (AA) onto the surface of P(MMA-St) nanospheres at 80 °C, a seri...

Journal: :Journal of Porous Materials 2022

The preparation of different carbon-shell morphology microspheres and controllable surface area via using thermoplastic polymers as carbon source was still a challenge. In addition, the unique structure porous Silica@Carbon (Sil@C) not only can provide larger active site, but also have characteristics high mechanical strength easy modification. Herein, we report simple method to in-situ fixatio...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Stefan Wellert Yvonne Hertle Marcel Richter Martin Medebach David Magerl Weinan Wang Bruno Demé Aurel Radulescu Peter Müller-Buschbaum Thomas Hellweg Regine von Klitzing

Microgel particles of cross-linked poly(NIPAM-co-acrylic acid) with different acrylic acid contents are investigated in solution and in the adsorbed state. As a substrate, silicon with a poly(allylamine hydrochloride) (PAH) coating is used. The temperature dependence of the deswelling of the microgel particles was probed with atomic force microscopy (AFM). The inner structure of the adsorbed mi...

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