title: Electrochemical Stimulated Pickering Emulsion for Recycling of Enzyme in Biocatalysis.
abstract: Potential-stimulated Pickering emulsions, using electrochemical responsive microgels as particle stabilizers, are prepared and used for biocatalysis. The microgels are constructed from cyclodextrin functionalized 8-arm poly(ethylene glycol) (8A PEG-CD) and ferrocene modified counterparts (8A PEG-Fc) via CD/Fc host-guest chemistry. Taking advantage of the redox reaction of Fc, the formation and deformation of the microgels and corresponding Pickering emulsions can be reversibly stimulated by external potential, and have been used for the hydrolysis of triacetin and kinetic resolution reaction of (R,S)-1-phenylethanol catalyzed by lipases. Potential stimulated destabilization of the emulsion realizes an effective separation of the products and enzyme recycling.
authors.forename: Liao
authors.initials: L
authors.lastname: Peng
authors.forename: Anchao
authors.initials: A
authors.lastname: Feng
authors.forename: Senyang
authors.initials: S
authors.lastname: Liu
authors.forename: Meng
authors.initials: M
authors.lastname: Huo
authors.forename: Tommy
authors.initials: T
authors.lastname: Fang
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
authors.forename: Yen
authors.initials: Y
authors.lastname: Wei
authors.affiliation: Department of Chemistry, Waterloo Institute of Nanotechnology (WIN), University of Waterloo , Waterloo, Canada N2L 3G1.
authors.forename: Xiaosong
authors.initials: X
authors.lastname: Wang
authors.forename: Jinying
authors.initials: J
authors.lastname: Yuan
mesh_terms: D055162:Biocatalysis; D003505:Cyclodextrins; D055664:Electrochemical Techniques; D004655:Emulsions; D010084:Oxidation-Reduction; D059027:Recycling
chemical_list: D003505:Cyclodextrins; D004655:Emulsions
keywords: Pickering emulsion; biocatalysis; electrochemical responsiveness; host−guest chemistry; polymer self-assembly