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Heme bound amylin self-assembled monolayers on an Au electrode: an efficient bio-electrode for O-2 reduction to H2O
Journal article   Peer reviewed

Heme bound amylin self-assembled monolayers on an Au electrode: an efficient bio-electrode for O-2 reduction to H2O

Kushal Sengupta, Sudipta Chatterjee, Soumya Mukherjee, Somdatta Ghosh Dey and Abhishek Dey
Chemical communications (Cambridge, England), Vol.50(29), pp.3806-3809
01/01/2014
DOI: https://doi.org/10.1039/c3cc49571j
PMID: 24584511

Abstract

Chemistry Chemistry, Multidisciplinary Physical Sciences Science & Technology
Self-assembled monolayers of the water soluble hydrophilic part of naturally occurring amylin and its Arg11 mutant have been assembled on an Au surface, which are found to efficiently catalyze selective 4e(-)/4H(+) O-2 reduction reaction (ORR) upon binding heme with a k(cat) of similar to 10(7) M-1 s(-1) under ambient conditions, where the Arg11 residue plays the key role of proton transfer in determining the rate of ORR.

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