Development of a Photoelectrochemical Lactic Dehydrogenase Biosensor Using Multi-Wall Carbon Nanotube -Tio 2 Nanoparticle Composite as Coenzyme Regeneration Tool

Enhancement of Biosensors by Implementing Photoelectrochemical Processes

“…The first PEC LDH biosensor that demonstrated its practical applicability in real samples used a TiO 2 nanoparticle-multiwall carbon nanotube composite as immobilization matrix for LDH [77]. The system showed that the LDH co-substrate nicotinamide adenine dinucleotide (NAD + ) can be regenerated from the NADH produced during the biocatalytic reaction at a moderate potential (0.2 V vs. Ag/AgCl) by the photoexcited holes of the composite.…”

Efficient Photoelectrocatalytic Activity of CuWO4 Nanoplates towards the Oxidation of NADH Driven in Visible Light

“…In the last few years, substantial research effort has been carried out for the electrochemical oxidation of NADH to NAD + . Unfortunately, the unmodified or bare electrode suffers from high overpotential (> 1.0 V) for the electrochemical oxidation of NADH ,. Moreover, the direct electrooxidation of NADH on bare electrodes calls the fouling/passivation of the surface due to the adsorption of the reaction intermediates .…”

Engineering exposed vertical nano-TiO2 (001) facets/BiOI nanosheet heterojunction film for constructing a satisfactory PEC glucose oxidase biosensor

“…5 To improve the response of TiO 2 in the visible light range, common methods include deposition of noble metal quantum dots, element doping, and modication with narrow band gap semiconductors. [6][7][8] Bismuth oxyiodide (BiOI) is a p-type semiconductor that has a narrow band gap between 1.7 and 1.9 eV, and a visible light response. 9 Aer p-type BiOI has been assembled with n-type TiO 2 , the photogenerated electrons of BiOI quickly transfer to the conduction band of TiO 2 , and the photogenerated holes of TiO 2 move to the valence band of BiOI, thereby achieving separation of electrons and holes.…”