Chitin–calcium alginate composite fibers for wound care dressings spun from ionic liquid solution

2014 ◽  
Vol 2 (25) ◽  
pp. 3924-3936 ◽  
Author(s):  
J. L. Shamshina ◽  
G. Gurau ◽  
L. E. Block ◽  
L. K. Hansen ◽  
C. Dingee ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Calcium Alginate ◽  
Wound Closure ◽  
Alginic Acid ◽  
Wound Care ◽  
Liquid Solution ◽  
Wet Spinning ◽  
Composite Fibers ◽  
Liquid Solutions ◽  
Ionic Liquid Solution

Chitin–calcium alginate composite fibers prepared from ionic liquid solutions of high molecular weight chitin and alginic acid by dry-jet wet spinning into a saturated CaCO3 solution, provided complete rat model wound closure in 14 days.

High-Strength Composite Fibers from Cellulose-Lignin Blends Regenerated from Ionic Liquid Solution

ChemSusChem ◽  
2015 ◽  
Vol 8 (23) ◽  
pp. 4030-4039 ◽  
Author(s):  
Yibo Ma ◽  
Shirin Asaadi ◽  
Leena-Sisko Johansson ◽  
Patrik Ahvenainen ◽  
Mehedi Reza ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Strength ◽  
Liquid Solution ◽  
Composite Fibers ◽  
Ionic Liquid Solution

A Polar Liquid Zwitterion Does Not Critically Destroy Cytochrome c at High Concentration: An Initial Comparative Study with a Polar Ionic Liquid

2019 ◽  
Vol 72 (2) ◽  
pp. 139 ◽  
Author(s):  
Kosuke Kuroda ◽  
Chiaki Kodo ◽  
Kazuaki Ninomiya ◽  
Kenji Takahashi
Keyword(s):  
Ionic Liquid ◽  
Cytochrome C ◽  
Soret Band ◽  
Liquid Solution ◽  
Acetate Solution ◽  
High Concentration ◽  
Liquid Solutions ◽  
High Concentration Range ◽  
Ionic Liquid Solution ◽  
Better Than

A polar carboxylate-type zwitterion with a small volume of water can dissolve cytochrome c without significant disruption, compared with the case of a popular polar carboxylate-type ionic liquid, 1-ethyl-3-methylimidazolium acetate. A change in the Soret, Q, and 615nm bands was not observed in the 80 wt-% polar zwitterion solution, whereas a shift in the Soret band, diminishing Q band, and appearance of the 615nm band was found in the 80 wt-% polar ionic liquid solution. It suggests that concentrated polar ionic liquid solutions critically disrupt the structure of cytochrome c, and the polar zwitterion solution used in this study was better than a 1-ethyl-3-methylimidazolium acetate solution in a high concentration range.

Dry jet-wet spinning of strong cellulose filaments from ionic liquid solution

Cellulose ◽  
2014 ◽  
Vol 21 (6) ◽  
pp. 4471-4481 ◽  
Author(s):  
Lauri K. J. Hauru ◽  
Michael Hummel ◽  
Anne Michud ◽  
Herbert Sixta
Keyword(s):  
Ionic Liquid ◽  
Liquid Solution ◽  
Wet Spinning ◽  
Ionic Liquid Solution

scholarly journals Erratum to: Dry jet-wet spinning of strong cellulose filaments from ionic liquid solution

Cellulose ◽  
2017 ◽  
Vol 24 (7) ◽  
pp. 3109-3110 ◽  
Author(s):  
Lauri K. J. Hauru ◽  
Michael Hummel ◽  
Anne Michud ◽  
Herbert Sixta
Keyword(s):  
Ionic Liquid ◽  
Liquid Solution ◽  
Wet Spinning ◽  
Ionic Liquid Solution

Regenerated silk fiber wet spinning from an ionic liquid solution

2005 ◽  
Vol 15 (39) ◽  
pp. 4206 ◽  
Author(s):  
David M. Phillips ◽  
Lawrence F. Drummy ◽  
Rajesh R. Naik ◽  
Hugh C. De Long ◽  
Douglas M. Fox ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Solution ◽  
Silk Fiber ◽  
Wet Spinning ◽  
Ionic Liquid Solution

scholarly journals Freeze Concentration of Aqueous [DBNH][OAc] Ionic Liquid Solution

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 147 ◽  
Author(s):  
Nahla Osmanbegovic ◽  
Lina Yuan ◽  
Heike Lorenz ◽  
Marjatta Louhi-Kultanen
Keyword(s):  
Ionic Liquid ◽  
Distribution Coefficient ◽  
Freezing Point ◽  
Liquid Solution ◽  
Single Step ◽  
Compound System ◽  
Ice Crystal ◽  
Concentration Method ◽  
Liquid Solutions ◽  
Ionic Liquid Solution

In the present work, freeze crystallization studies, as a novel concentration method for aqueous 1,5-diazabicyclo[4.3.0]non-5-enium acetate ([DBNH][OAc]) ionic liquid solution, were conducted. In order to find the appropriate temperature and composition range for freeze crystallization, the solid–liquid equilibrium of a binary [DBNH][OAc]–water compound system was investigated with differential scanning calorimetry (DSC). Results of this analysis showed that the melting temperature of the pure ionic liquid was 58 ℃, whereas the eutectic temperature of the binary compound system was found to be −73 ℃. The activity coefficient of water was determined based on the freezing point depression data obtained in this study. In this study, the lowest freezing point was −1.28 ℃ for the aqueous 6 wt.% [DBNH][OAc] solution. Ice crystal yield and distribution coefficient were obtained for two types of aqueous solutions (3 wt.% and 6 wt.% [DBNH][OAc]), and two freezing times (40 min and 60 min) were used as the main parameters to compare the two melt crystallization methods: static layer freeze and suspension freeze crystallization. Single-step suspension freeze crystallization resulted in higher ice crystal yields and higher ice purities when compared with the single-step static layer freeze crystallization. The distribution coefficient values obtained showed that the impurity ratios in ice and in the initial solution for suspension freeze crystallization were between 0.11 and 0.36, whereas for static layer freeze crystallization these were between 0.28 and 0.46. Consequently, suspension freeze crystallization is a more efficient low-energy separation method than layer freeze crystallization for the aqueous-ionic liquid solutions studied and, therefore, this technique can be applied as a concentration method for aqueous-ionic liquid solutions.

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