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Date of Publication:2013-01-01

Journal:催化学报

Volume:34

Issue:4

Page Number:723-733

ISSN No.:0253-9837

Abstract:Single-wall carbon nanotubes (SWCNTs) possess unique mechanical properties and extraordinary thermal conductivity, and were used as the matrix for immobilized biocatalysts. The C-C bond hydrolase BphD was immobilized on SWCNTs by physical adsorption and covalent bonding. The relative activity, stability, and reusability of the immobilized enzyme were investigated. BphD immobilized by physical adsorption retained 52.5% of the activity of free BphD, and BphD thermal stability and denaturant resistance were also improved. Covalently bound BphD exhibited the activity nearly the same as that of free BphD (99.7% of initial activity), but its stability showed no significant improvement over that of free BphD. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

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