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Published on: April 10, 2015
Construction of photo-driven bioanodes using thylakoid membranes and multi-walled carbon nanotubes
Ryosuke Takeuchi1, Arato Suzuki1, Kento Sakai1
1Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan.
Abstract:
A photo-driven bioanode was constructed using the thylakoid membrane from spinach, carbon nanotubes, and an artificial mediator. By considering a linear free-energy relationship in the electron transfer from the thylakoid membrane to the mediators, and the oxygen resistance of the reduced mediators, 1,2-naphthoquinone was selected as the most suitable mediator for the photo-driven bioanode. Water-dispersed multi-walled carbon nanotubes served as scaffolds to hold the thylakoid membrane on a porous electrode. The constructed photo-driven bioanode exhibited a photocurrent density of over 100μAcm-2 at a photon flux density of 1500μmolm-2s-1.
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