Light-controlled imaging of biocatalytic reactions via scanning photoelectrochemical microscopy for multiplexed sensing

Chem Commun (Camb). 2020 May 11;56(38):5147-5150. doi: 10.1039/d0cc00777c. Epub 2020 Apr 7.

Abstract

A light-controlled multiplexing platform has been developed on the basis of a quantum dot-sensitized inverse opal TiO2 electrode with integrated biocatalytic reactions. Spatially resolved illumination enables multiplexed sensing and imaging of enzymatic oxidation reactions at relatively negative applied potentials.

MeSH terms

  • Biocatalysis
  • Biosensing Techniques*
  • Electrochemical Techniques*
  • Electrodes
  • Flavin-Adenine Dinucleotide / chemistry
  • Flavin-Adenine Dinucleotide / metabolism*
  • Glucose / analysis
  • Glucose / metabolism
  • Glucose 1-Dehydrogenase / chemistry
  • Glucose 1-Dehydrogenase / metabolism*
  • Lactic Acid / analysis
  • Lactic Acid / metabolism
  • Light*
  • Mixed Function Oxygenases / chemistry
  • Mixed Function Oxygenases / metabolism*
  • Optical Imaging
  • Particle Size
  • Photochemical Processes
  • Quantum Dots / chemistry
  • Quantum Dots / metabolism
  • Surface Properties
  • Titanium / chemistry
  • Titanium / metabolism

Substances

  • Flavin-Adenine Dinucleotide
  • titanium dioxide
  • Lactic Acid
  • Titanium
  • Mixed Function Oxygenases
  • Glucose 1-Dehydrogenase
  • lactate 2-monooxygenase
  • Glucose