Document Detail


Light Controlled Reversible Inversion of Nanophosphor-stabilized Pickering Emulsions for Biphasic Enantioselective Biocatalysis.
MedLine Citation:
PMID:  24784766     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In this work, by utilizing photochromic spiropyrans conjugated upconversion nanolamps, we have successfully prepared NIR/visible light tuned interfacially active nanoparticles for the formulation of Pickering emulsions with reversible inversion properties. By loading a model enantioselective biocatalytic active bacteria Alcaligenes faecalis ATCC 8750 in the aqueous phase, we demonstrated for the first time that the multifunctional Pickering emulsion not only highly enhanced its catalytic performance but also relived the substrate inhibition effect. In addition, product recovery, biocatalysts and colloid emulsifiers recycling could be easily realized based on the inversion ability of the Pickering emulsion. Most importantly, the utilization of NIR/visible light to perform the reversible inversion without any chemical auxiliaries or temperature variation showed little damage towards the biocatalysts, which was highlighted by the high catalytic efficiency and high enantioselectivity even after ten cycles. The NIR/visible light controlled Pickering emulsion showed promising potential as a powerful technique for biocatalysis in biphasic systems.
Authors:
Zhaowei Chen; Li Zhou; Wei Bing; Zhijun Zhang; Zhenhua Li; Jinsong Ren; Xiaogang Qu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-5-2
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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