Mediated Electron Transfer Across Supported Bilayer Lipid Membrane with TCNQ‐Based Organometallic Compounds |
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| Authors: | Meili Qu Qiying Lv Bing Yang Weide Zhang Jiaqi Zhang Shuzhong Zhan Jianshan Ye |
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| Institution: | 1. College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P.?R. China;2. College of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300071, P.?R. China |
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| Abstract: | Supported bilayer lipid membrane (s‐BLM) containing one‐dimensional compound 1, TCNQ‐based (TCNQ=7,7,8,8‐tetracyanoquinodimethane) organometallic compound {(Cu2(μ‐Cl)(μ‐dppm)2)(μ2‐TCNQ)}∞, was prepared and characterized on the self‐assembled monolayer (SAM) of 1‐octadecylmercaptan (C18H37SH) deposited onto Au electrode. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) results showed that the compound 1, dotted inside s‐BLM, can act as mediator for electron transfer across the membrane. Two redox peaks and the charge‐transfer resistance of 400 kΩ were observed for compound 1 inside s‐BLM. The mechanism of the electron transfer across s‐BLM by TCNQ is by electron hopping while TCNQ‐based organometallic compound is by conducting. Further conclusion drawn from this finding is that the TCNQ‐based organometallic compound embedded inside s‐BLM exhibits excellent electron transfer ability than that of free TCNQ. This opens a new path for the development of s‐BLM sensor and/or biosensor by incorporation with TCNQ‐based organometallic compounds. |
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| Keywords: | TCNQ Organometallic compound Electron transfer Supported lipid membrane Nanodevice Membranes |
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