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Construction of photo-driven bioanodes using thylakoid membranes and multi-walled carbon nanotubes.

Bioelectrochemistry (Amsterdam, Netherlands) (2018-04-10)
Ryosuke Takeuchi, Arato Suzuki, Kento Sakai, Yuki Kitazumi, Osamu Shirai, Kenji Kano
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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
2,5-Dichloro-1,4-benzoquinone, 98%
Supelco
Quinoclamine, PESTANAL®, analytical standard

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