Photoelectroenzymatic Oxyfunctionalization on Flavin-Hybridized Carbon Nanotube Electrode Platform

Da Som Choi, Yan Ni, Elena Fernández-Fueyo, Minah Lee, Frank Hollmann*, Chan Beum Park

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

50 Citations (Scopus)
42 Downloads (Pure)

Abstract

Peroxygenases are very promising catalysts for oxyfunctionalization reactions. Their practical applicability, however, is hampered by their sensitivity against the oxidant (H2O2), therefore necessitating in situ generation of H2O2. Here, we report a photoelectrochemical approach to provide peroxygenases with suitable amounts of H2O2 while reducing the electrochemical overpotential needed for the reduction of molecular oxygen to H2O2. When tethered on single-walled carbon nanotubes (SWNTs) under illumination, flavins allowed for a marked anodic shift of the oxygen reduction potential in comparison to pristine SWNT and/or nonilluminated electrodes. This flavin-SWNT-based photoelectrochemical platform enabled peroxygenases-catalyzed, selective hydroxylation reactions.

Original languageEnglish
Pages (from-to)1563-1567
Number of pages5
JournalACS Catalysis
Volume7
Issue number3
DOIs
Publication statusPublished - 3 Mar 2017

Bibliographical note

Accepted Author Manuscript

Keywords

  • flavins
  • heme proteins
  • oxyfunctionalization
  • peroxygenases
  • photoelectrochemistry

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