نتایج جستجو برای: responsive polymer

تعداد نتایج: 151027  

2015
Anja C Pauly Katrin Schöller Lukas Baumann René M Rossi Kathrin Dustmann Ulrich Ziener Damien de Courten Martin Wolf Luciano F Boesel Lukas J Scherer

The grafting of poly(hydroxyethylmethacrylate) on polymeric porous membranes via atom transfer radical polymerization (ATRP) and subsequent modification with a photo-responsive spiropyran derivative is described. This method leads to photo-responsive membranes with desirable properties such as light-controlled permeability changes, exceptional photo-stability and repeatability of the photo-resp...

Journal: :acta medica iranica 0
t. zaman m. kadivar r. moradian

abstract- the syndrome of diabetes mellitus, sensorineural deafness and megaloblastic anemia dose not result from thiamine deficiency. the previous reported patients had no sign of beriberi, had normal nutrition, and had no evidence of malabsorption. the features of this syndrome with apparent inheritance of autosomal recessive trait may define this puzzling syndrome as a true thiamine dependen...

2016
Quanyou Feng Rong Tong

We review recent progress in polymer-drug conjugate for cancer nanomedicine. Polymer-drug conjugates, including the nanoparticle prepared from these conjugates, are designed to release drug in tumor tissues or cells in order to improve drugs' therapeutic efficacy. We summarize general design principles for the polymer-drug conjugate, including the synthetic strategies, the design of the chemica...

Journal: :Chemical communications 2010
Lin He Yi Jiang Chunlai Tu Guolin Li Bangshang Zhu Chengyu Jin Qi Zhu Deyue Yan Xinyuan Zhu

Dynamic diblock polymer PS-r-PEG formed via reversible acylhydrazone connection can be used to construct a pH-responsive self-assembled encapsulation system with high stability and sustained-release property, which shows potential in drug delivery.

Journal: :Chemical communications 2012
Yue Ma Ying Zhang Man Zhao Xianzhi Guo Huiqi Zhang

A facile, general, and highly efficient approach to obtain narrowly dispersed molecularly imprinted polymer microspheres with multiple stimuli-responsive template binding properties in aqueous media by successive RAFT polymerization is described.

Journal: :Chemical communications 2011
Janakiraman Krishnamurthi Toshikazu Ono Shogo Amemori Hiromu Komatsu Seiji Shinkai Kazuki Sada

Fluoride and acetate-responsive polymer gels were prepared by incorporation of p-nitrophenylthiourea into poly(octadecyl acrylate) gels, and the colours and volumes were changed selectively in the presence of these ions by complexation in THF.

Journal: :Chemical communications 2009
Akira Matsumoto Takashi Endo Ryo Yoshida Yuji Miyahara

A field effect transistor (FET) whose gate surface has been modified with a stimuli-responsive "smart" polymer gel can visualize the kinetics of the chemo-mechanical signal transduction as a mode of its altered electrical characteristics without any labels.

Journal: :Chemical communications 2010
Emmanuel Stratakis Anca Mateescu Marios Barberoglou Maria Vamvakaki Costas Fotakis Spiros H Anastasiadis

pH-responsive surfaces, reversibly switching between superhydrophilicity and superhydrophobicity/water repellency, are developed by "grafting from" a pH-sensitive polymer onto a hierarchically micro/nano-structured substrate. We quantify the water repellency by investigating the restitution coefficient of water droplets bouncing off the surfaces. The water repellent state requires appropriate h...

Journal: :Chemical communications 2013
Nicky Chan Behnoush Khorsand Samuel Aleksanian Jung Kwon Oh

A new strategy that centers on the incorporation of stimuli-responsive cleavable linkages in dual or multiple locations as in both micellar cores and at polymer/solution interfaces leading to synergistically enhanced release of encapsulated anticancer drugs in cancer cells.

2012
Pier-Francesco Caponi Rein V. Ulijn

We report a systematic study of a modular approach to create multi-component supramolecular nanostructures that can be tailored to be both enzyme and temperature responsive. Using a straightforward synthetic approach we functionalised a thermal responsive polymer, poly(2-isopropyl-2-oxazoline), with fluorenylmethoxycarbonyl-amino acids that drive the self-assembly. Depending on the properties o...

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