Dual Stimuli-Responsive Poly(2-hydroxyethyl methacrylate-co-methacrylic acid) Microgels Based on Photo-Cleavable Cross-Linkers: pH-Dependent Swelling and Light-Induced Degradation

2011 ◽  
Vol 44 (24) ◽  
pp. 9758-9772 ◽  
Author(s):  
Daniel Klinger ◽  
Katharina Landfester
Keyword(s):  
Methacrylic Acid ◽  
Hydroxyethyl Methacrylate ◽  
Stimuli Responsive ◽  
Ph Dependent

scholarly journals Systematic exploration of the pH dependence of a peptide hydrogel

2019 ◽  
Vol 97 (6) ◽  
pp. 430-434 ◽  
Author(s):  
Natashya Falcone ◽  
Tsuimy Shao ◽  
Xiaoyi Sun ◽  
Heinz-Bernhard Kraatz
Keyword(s):  
Mechanical Strength ◽  
Narrow Range ◽  
Ph Dependence ◽  
Stimuli Responsive ◽  
Systematic Exploration ◽  
Ph Conditions ◽  
Ph Dependent ◽  
Functional Biomaterials ◽  
Peptide Hydrogel

Stimuli-responsive peptide gels are a growing class of functional biomaterials that are involved in many applications in research. Here, we present a novel di-peptide hydrogel from the compound Boc–Phe–Trp–OH in various buffer and pH conditions. We examine the effects of different stimuli, including temperature and pH, on the mechanical strength of the gels through frequency rheology studies. We found that this hydrogelator is highly pH dependent, only forming a gel in a narrow range of pH 6–7. This hydrogelator hold promise for the development of new stimuli-responsive biomaterials for specific applications that require this type of specific stimuli.

Temperature and pH-dependent swelling and copper(ii) adsorption of poly(N-isopropylacrylamide) copolymer hydrogel

RSC Advances ◽  
2015 ◽  
Vol 5 (76) ◽  
pp. 62091-62100 ◽  
Author(s):  
Jinjin Cheng ◽  
Guorong Shan ◽  
Pengju Pan
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Maleic Acid ◽  
Adsorption Process ◽  
Ph Value ◽  
Free Radical Polymerization ◽  
Stimuli Responsive ◽  
Copolymer Hydrogel ◽  
Ph Dependent

Poly(N-isopropylacrylamide-co-acrylamide-co-maleic acid) (PNIPAM-AM-MA) hydrogel, which can make the Cu2+ adsorption process stimuli-responsive under temperature and pH value control, has been synthesized by free radical polymerization.

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