Crucial Impact of Residue Chirality on the Gelation Process and Biodegradability of Thermoresponsive Polypeptide Hydrogels

2021 ◽  
Vol 22 (9) ◽  
pp. 3992-4003
Author(s):  
Dong Li ◽  
Dan Zhao ◽  
Chaoliang He ◽  
Xuesi Chen
Keyword(s):  
Gelation Process

scholarly journals Universal Equation of State Describes Osmotic Pressure throughout Gelation Process

2020 ◽  
Vol 125 (26) ◽  
Author(s):  
Takashi Yasuda ◽  
Naoyuki Sakumichi ◽  
Ung-il Chung ◽  
Takamasa Sakai
Keyword(s):  
Equation Of State ◽  
Osmotic Pressure ◽  
Universal Equation ◽  
Gelation Process

Rubbery Ormosils

1990 ◽  
Vol 180 ◽  
Author(s):  
Young J. Chung ◽  
Su-Jen Ting ◽  
John D. Mackenzie
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Model ◽  
Rubber Elasticity ◽  
New Technique ◽  
Polydimethyl Siloxane ◽  
Gelation Process ◽  
Organically Modified Silicates ◽  
Organically Modified ◽  
A New Technique

ABSTRACTA new technique which permits the successful preparation of ORMOSILS (Organically Modified Silicates) with rubbery elasticity has been developed. Common alkoxides were reacted with polydimethyl siloxane (PDMS) and the microstructures were carefully controlled. Large monoliths of the porous rubbery ORMOSILS have been prepared. Gelation process was studied by 29Si liquid NMR spectroscopy. A structural model for rubber elasticity of ORMOSILS was proposed.

Monodomain hydrogels prepared by shear-induced orientation and subsequent gelation

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 95239-95245 ◽  
Author(s):  
Xiao Ying Lin ◽  
Zhi Jian Wang ◽  
Pengju Pan ◽  
Zi Liang Wu ◽  
Qiang Zheng
Keyword(s):  
Mechanical Properties ◽  
Liquid Crystalline ◽  
Gelation Process

Shear-induced orientation of liquid crystalline hydroxypropylcellulose solution with reactants is frozen by subsequent polymerization and gelation process, resulting in monodomain hydrogel with anisotropic optical, swelling, and mechanical properties.

scholarly journals Viscometric analysis of the gelation of Acanthamoeba extracts and purification of two gelation factors.

1980 ◽  
Vol 85 (2) ◽  
pp. 414-428 ◽  
Author(s):  
S D MacLean-Fletcher ◽  
T D Pollard
Keyword(s):  
Crude Extract ◽  
Cross Linking ◽  
Cross Link ◽  
Gelation Process ◽  
Optimum Ph ◽  
Kinetics Of ◽  
Low Shear

We have studied the kinetics of the gelation process that occurs upon warming cold extracts of Acanthamoeba using a low-shear falling ball assay. We find that the reaction has at least two steps, requires 0.5 mM ATP and 1.5 mM MgCl2, and is inhibited by micromolar Ca++. The optimum pH is 7.0 and temperature, 25 degrees-30 degrees C. The rate of the reaction is increased by cold preincubation with both MgCl2 and ATP. Nonhydrolyzable analogues of ATP will not substitute for ATP either in this "potentiation reaction" or in the gelation process. Either of two purified or any one of four partially purified Acanthamoeba proteins will cross-link purified actin to form a gel, but none can account for the dependence of the reaction in the crude extract on Mg-ATP or its regulation by Ca++. This suggests that the extract contains, in addition to actin-cross-linking proteins, factors dependent on Mg-ATP and Ca++ that regulate the gelation process.

Vanadia Gel Synthesis via Peroxovanadate Precursors. 1. In Situ Laser Raman and51V NMR Characterization of the Gelation Process

2000 ◽  
Vol 104 (49) ◽  
pp. 11622-11631 ◽  
Author(s):  
Craig J. Fontenot ◽  
Jerzy W. Wiench ◽  
M. Pruski ◽  
G. L. Schrader
Keyword(s):  
Gelation Process ◽  
Laser Raman ◽  
Nmr Characterization
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