Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 12, Pages 1864-1867Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.09.034
Keywords
Mesoporous carbon; Gyroidal; Electron transfer; Protein; Electrochemistry
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Funding
- NNSF of China [20575013, 20775016]
- Shanghai Shuguang Project
- Leading Academic Discipline Project [B109]
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A strategy of protein entrapment within the bicontinuous gyroidal mesoporous carbon (BGMC) matrix is demonstrated to probe the direct electrochemistry of myoglobin. Large surface area and remarkable electro-catalytic properties of BGMC make it a suitable candidate for high loading of protein molecules and the promotion of heterogeneous electron transfer (ET). In contrast with carbon nanotubes and general carbon mesoporous materials, BGMC is of a relatively isotropic graphited structure and thus can more effectively enhance the heterogeneous ET. Furthermore, a series of BGMCs with different pore sizes (2-7 nm) is designed and synthesized to study the influence of pore size on the immobilization of redox proteins and on the electron transfer. (C) 2008 Elsevier B.V. All rights reserved.
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