نتایج جستجو برای: thermoresponsive

تعداد نتایج: 1274  

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: :Colloids and Surfaces A: Physicochemical and Engineering Aspects 2022

Stimuli-responsive polymers, with properties changing upon different environmental factor variations such as pH, light, mechanical stress or temperature, and polymeric nanoparticles have found many important applications in fields drug delivery, biosensing research. In this work, thermoresponsive that are able to react by Diels-Alder reaction (a diene-dienophile cycloaddition) were studied. The...

Journal: :Cellulose 2023

Abstract Thermoresponsive hydrogels based on ionic cellulose/chitosan are widely used various fields, such as smart windows and tissue engineering, while the effect of carbohydrate backbones thermal response mechanical properties has received less attention so far. Herein, poly(2(dimethylamino)ethyl methacrylate) (PDMAEMA)-grafted cellulose sulfate (P-CS) PDMAEMA-grafted chitosan (P-CHS) resear...

2017
Weinan Xu Zhao Qin Chun-Teh Chen Hye Rin Kwag Qinli Ma Anjishnu Sarkar Markus J Buehler David H Gracias

Graphene and other two-dimensional materials have unique physical and chemical properties of broad relevance. It has been suggested that the transformation of these atomically planar materials to three-dimensional (3D) geometries by bending, wrinkling, or folding could significantly alter their properties and lead to novel structures and devices with compact form factors, but strategies to enab...

Journal: :Soft matter 2016
H H Nguyen M El Ezzi C Mingotaud M Destarac J-D Marty N Lauth-de Viguerie

We report the behaviour of thermoresponsive block copolymers of n-butyl acrylate and N-alkyl acrylamides in [C2mim][NTf2]. Poly(N-isopropylacrylamide) exhibits an upper critical solution temperature in [C2mim][NTf2] whereas poly(n-butyl acrylate) has a lower critical solution temperature. Consequently, these polymers exhibit double thermo-responsiveness correlated with the macromolecular struct...

2013
Julian Fischer Helmut Ritter

2-Amino-N-isopropylacetamide and α-amino-ε-caprolactam were reacted with glycerol diglycidyl ether to give novel oligomeric thermoresponsive epoxide-amine adducts. These oligomers exhibit a lower critical solution temperature (LCST) behavior in water. The solubility properties were influenced with randomly methylated β-cyclodextrin (RAMEB-CD) and the curing properties of the amine-epoxide mixtu...

Journal: :Biomaterials science 2015
Christian Mangani Annamaria Lilienkampf Marcia Roy Paul A de Sousa Mark Bradley

A chemically defined thermoresponsive hydrogel, poly(AEtMA-Cl-co-DEAEA) cross-linked with N,N'-methylenebisacrylamide, which allows enzyme-free passaging, was used as a substrate to culture murine embryonic stem cells (mESCs) under defined and undefined conditions. Analysis of 14 stem cell markers showed that the mESCs remained in a "naïve" state of pluripotency with differentiation potential t...

Journal: :Macromolecular rapid communications 2015
Ana Sanchez-Sanchez Arantxa Arbe Joachim Kohlbrecher Juan Colmenero José A Pomposo

Endowing unimolecular soft nanoobjects with biomimetic functions is attracting significant interest in the emerging field of single-chain technology. Inspired by the compartmentalized structure and polymerase activity of metalloenzymes, copper-containing compact nanoglobules have been designed, synthesized, and characterized endowed with metalloenzyme mimicking characteristics toward controlled...

2015
Aram Saeed Nora Francini Lisa White James Dixon Toby Gould Hassan Rashidi Racha Cheikh Al Ghanami Veronika Hruschka Heinz Redl Brian R Saunders Cameron Alexander Kevin M Shakesheff

A dual thermoresponsive and magnetic colloidal gel matrix is described for enhanced stem-cell culture. The combined properties of the material allow enzyme-free passaging and expansion of mesenchymal stem cells, as well as isolation of cells postculture by the simple process of lowering the temperature and applying an external magnetic field. The colloidal gel can be reconfigured with thermal a...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید