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Citation: Ding Lin, Wang Er-Kang. Investigation on the Voltammetric Behaviors in Planar Bilayer Lipid Membranes[J]. Acta Physico-Chimica Sinica, ;1997, 13(04): 362-365. doi: 10.3866/PKU.WHXB19970415 shu

Investigation on the Voltammetric Behaviors in Planar Bilayer Lipid Membranes

Ding Lin ,
Wang Er-Kang

1.
Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022

Received Date: 23 September 1996
Available Online: 15 April 1997

In the TCNQ-modified BLM, the voltammetric response is different due to the different methods used to prepare the membrane forming solution. The direct and indirect dissolved methods result in irreversible and reversible responses respectively. These results can be explained by the different styles of the orientation of TCNQ in the membrane. The reversible response is controlled by the diffusion of electroactive species in the interior of the membrane. When MB is used to modify the BLM, very complex voltammograms are obtained. The intersection of the voltammetric curves can be regarded to be owing to the appearance of new phase in the membrane caused by MB. But it disappears at lower scan rate. Peak current increases with decreasing scan rate. This indicates that the resistance of the membrane at lower scan rate is lower than that at higher scan rate. Asymmetric curve of MB incorporated BLM is ascribed to the different rates of redox reaction at the two membrane/solution interfaces.
- Bilayer lipid membranes(CLM),
- Cyclic voltammetry,
- Electron transfer,
- Dye,
- TCNQ
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