Sol–gel transitionIn situ hydrogel formationTemperatureDrug deliveryAqueous polymer solutions that are transformed into gels by changes in environmental conditions, such as temperature and pH, thus resulting in in situ hydrogel formation, have recently attracted the attention of many investigators for ...
Considering the unique advantages of MRS sensing, sol-gel transition of hydrogels for direct T2 signal output, as well as the CRISPR/Cas12a system for specific recognition and precise control, we herein proposed a hydrogel sol-gel transition- and CRISPR-based MRS (MRS-CRISPR) biosensor for Salmo...
estimate the sol–gel transition entropy in physically gelling systems Takashi Sakai, Jun-ichi Horinaka and Toshikazu Takigawa A Clapeyron-type equation is presented to estimate the transition entropy for the sol–gel transition of physical gels, based on simple thermodynamics for the gels under load...
The sol-gel transition of the CS/GP hydrogel was evaluated by the inverted test tube method which allows direct observation of the state of the hydrogel in the tube when the temperature changes. The “sol” and “gel” states are defined as the flowable liquid and the non-flowing solid. ...
The aim of this work was thus to provide useful information on the sol-gel transition, as well as on the mechanical characteristics of EY gels as affected by the enrichment with oleuropein, one of the major olive phenolic compound. For this purpose, oleuropein was added to EY, and its ...
Stimuli-induced gel–sol transition of multi-sensitive supramolecular β-cyclodextrin grafted alginate/ferrocene modified pluronic hydrogel This paper studies a kind of biocompatible hydrogel composed of alginate-g-β-cyclodextrin (Alg-β-CD) and ferrocene-terminated pluronic F127 (F127-Fc), wh... L ...
Chemically-responsive sol-gel transition of supramolecular single-walled carbon nanotubes (SWNTs) hydrogel made by hybrids of SWNTs and cyclodextrins. Hybrids of single-walled carbon nanotubes (SWNTs) and β-cyclodextrins (β-CDs) were prepared by ππ interaction between pyrene modified β-CDs ...
This approach allows comparison of the sol-gel transition to predictions of critical gelation theory. We show that the collagen system displays a network spanning structure at a gelation time defined through rheology as well as a scaling relationship consistent with gelation through percolation. However...
In situ hydrogel formation makes it more feasible to apply hydrogels for macromolecular drug delivery, tissue barriers, and tissue engineering. A particularly interesting and important polymeric system is hydrogel forming solutions by a simple phase transition (sol–gel transition) in water without any ...
Shear-thinning behavior has been observed for all the alginate solutions by addition of four divalent cations over sol-gel transition process. The values of exponent b in the power-law relation were found in the range of -0.3 -0.6. It is suggested that a considerable portion of divalent ...