Synthesis and characterization of stimuli-responsive hydrogel based on starch and methyl-3-aminocrotonate: swelling and degradation kinetics

2018 ◽  
Vol 76 (6) ◽  
pp. 3073-3092 ◽  
Author(s):  
Muhammad Aslam Malana ◽  
Faryal Aftab ◽  
Syeda Rabia Batool
Keyword(s):  
Degradation Kinetics ◽  
Synthesis And Characterization ◽  
Stimuli Responsive

Polyacryloyl hydrazide based injectable & stimuli responsive hydrogels with tunable properties

2014 ◽  
Vol 2 (42) ◽  
pp. 7429-7439 ◽  
Author(s):  
Anuj Kumar ◽  
Sabindra K. Samal ◽  
Rupesh Dash ◽  
Umaprasana Ojha
Keyword(s):  
Polyethylene Glycol ◽  
Acrylic Acid ◽  
Diethyl Malonate ◽  
Synthesis And Characterization ◽  
Cross Linking ◽  
Stimuli Responsive ◽  
Polyethylene Glycol Diacrylate ◽  
Glycol Diacrylate ◽  
Responsive Hydrogels

The synthesis and characterization of a series of injectable and stimuli responsive hydrogels based on polyacryloyl hydrazide have been accomplished using dimethyl 2,2′-thiodiacetate, acrylic acid, diethyl malonate and polyethylene glycol diacrylate as cross-linkers through a chemical or dual cross-linking pathway.

Synthesis and characterization of stimuli-responsive poly(acrylic acid) grafted silica nanoparticles

2007 ◽  
Vol 16 (6) ◽  
pp. 2169-2174 ◽  
Author(s):  
Lizhong Jiang ◽  
Qiushuang Gao ◽  
Yun Yu ◽  
Dezhen Wu ◽  
Zhanpeng Wu ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Silica Nanoparticles ◽  
Synthesis And Characterization ◽  
Stimuli Responsive ◽  
Poly Acrylic Acid

scholarly journals Synthesis and Characterization of the Novel Nε-9-Fluorenylmethoxycarbonyl-l-Lysine N-Carboxy Anhydride. Synthesis of Well-Defined Linear and Branched Polypeptides

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2819
Author(s):  
Varvara Athanasiou ◽  
Pandora Thimi ◽  
Melina Liakopoulou ◽  
Foteini Arfara ◽  
Dimitra Stavroulaki ◽  
...  
Keyword(s):  
Ring Opening ◽  
High Vacuum ◽  
Primary Amines ◽  
Synthesis And Characterization ◽  
The Novel ◽  
Stimuli Responsive ◽  
Linear Poly ◽  
Compositional Homogeneity ◽  
High Degree

The synthesis of well-defined polypeptides exhibiting complex macromolecular architectures requires the use of monomers that can be orthogonally deprotected, containing primary amines that will be used as the initiator for the Ring Opening Polymerization (ROP) of N-carboxy anhydrides. The synthesis and characterization of the novel monomer Nε-9-Fluorenylmethoxycarbonyl-l-Lysine N-carboxy anhydride (Nε-Fmoc-l-Lysine NCA), as well as the novel linear Poly(Nε-Fmoc-l-Lys)n homopolypeptide and Poly(l-Lysine)78–block–[Poly(l-Lysine)10–graft–Poly(l-Histidine)15] block-graft copolypeptide, are presented. The synthesis of the graft copolypeptide was conducted via ROP of the Nε-Boc-l-Lysine NCA while using n-hexylamine as the initiator, followed by the polymerization of Nε-Fmoc-l-Lysine NCA. The last block was selectively deprotected under basic conditions, and the resulting ε-amines were used as the initiating species for the ROP of Nim-Trityl-l-Histidine NCA. Finally, the Boc- and Trt- groups were deprotected by TFA. High Vacuum Techniques were applied to achieve the conditions that are required for the synthesis of well-defined polypeptides. The molecular characterization indicated that the polypeptides exhibited high degree of molecular and compositional homogeneity. Finally, Dynamic Light Scattering, ζ-potential, and Circular Dichroism measurements were used in order to investigate the ability of the polypeptide to self-assemble in different conditions. This monomer opens avenues for the synthesis of polypeptides with complex macromolecular architectures that can define the aggregation behavior, and, therefore, can lead to the synthesis of “smart” stimuli-responsive nanocarriers for controlled drug delivery applications.

Synthesis and Characterization of Stimuli-Responsive Star-Like Polypept(o)ides: Introducing Biodegradable PeptoStars

2017 ◽  
Vol 17 (6) ◽  
pp. 1600514 ◽  
Author(s):  
Regina Holm ◽  
Benjamin Weber ◽  
Philipp Heller ◽  
Kristina Klinker ◽  
Dana Westmeier ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Stimuli Responsive

Synthesis and characterization of well-defined PAA–PEG multi-responsive hydrogels by ATRP and click chemistry

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54631-54640 ◽  
Author(s):  
Chao Zhou ◽  
Shan-shan Qian ◽  
Xia-jun Li ◽  
Fang Yao ◽  
John S. Forsythe ◽  
...  
Keyword(s):  
Click Chemistry ◽  
Synthesis And Characterization ◽  
Stimuli Responsive ◽  
Peg Hydrogels ◽  
Swelling Property ◽  
Responsive Hydrogels

Well-defined multi-responsive PAA–PEG hydrogels exhibit a unique swelling property at different pH and Ca2+ secondary crosslinking, and can potentially be used as stimuli responsive biomaterials.

Synthesis and Characterization of Stimuli-Responsive Poly(N-isopropylacrylamide-co-N-vinyl-2-pyrrolidone)

2005 ◽  
Vol 13 (2) ◽  
pp. 121-131 ◽  
Author(s):  
Sevil Dincer ◽  
Zakir M. O. Rzaev ◽  
Erhan Piskin
Keyword(s):  
Synthesis And Characterization ◽  
Stimuli Responsive
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