Gold and Platinum Nanoparticle-Functionalized TiO₂ Nanotubes for Photoelectrochemical Glucose Sensing.

ABSTRACT: Developing stable photoelectrochemistry (PEC) glucose biosensors with high sensitivity and a low detection limit is highly desirable in the biosensor field. Herein, a highly sensitive and stable enzymatic glucose PEC biosensor is rationally designed and fabricated using a TiO₂NTs/Au/Pt/GOx electrode. First, we prepared one-dimensional TiO₂ nanotube arrays which could realize the orthogonalization of the light-incident direction and the carrier diffusion direction via anodization. Subsequently, we used the method of photoassisted deposition for anchoring Pt nanoparticles on TiO₂NTs after electrodepositing Au nanoparticles. Among them, Au nanoparticles promote light absorption via the surface plasmon resonance effect and the separation of photogenerated carri

SUBMITTER: Yang Z 

PROVIDER: S-EPMC8772325 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature