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Hofmeister effects: an explanation for the impact of ionic liquids on biocatalysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
24464 43517 2009 11 PDF Available
Title
Hofmeister effects: an explanation for the impact of ionic liquids on biocatalysis
Abstract

Ionic liquids (ILs) have shown potentials as a new reaction medium for biocatalysis, either as such or as an aqueous mixture. Their unique ionic nature is important in affecting the enzyme performance, and the Hofmeister effects provide a reasonable explanation for this. In this review, the impact of Hofmeister effects on enzyme performance in aqueous solution was first examined, concerning the specific ion effects on altering the bulk water properties, modifying the protein–water interactions, and interacting with the enzyme molecules; then the effect of IL cations and anions on enzyme activity and stability in aqueous IL mixtures was discussed, taking both kinetic and structural studies into consideration; and finally, our recent study regarding mushroom tyrosinase in the presence of ILs and their associated anions was used to illustrate the cooperative functioning of IL cations and anions in affecting enzyme performance, following the Hofmeister series. Design and use of water-mimicking ILs composed of chaotropic cations and kosmotropic anions may facilitate the applications of ILs in biotransformations.

Keywords
Ionic liquids; Hofmeister series; Biocatalysis; Specific ion effects; Kosmotropicity; Chaotropicity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 144, Issue 1, 12 October 2009, Pages 12–22
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us