Construction of a Photoelectrochemical Biosensor Based on Ti3C2/Cu2O Nanocomposite Photocathode and Ti3C2/Bi2S3 Nanocomposite Photoanode
Source abstract
Abstract
Photoanodic photoelectrochemical (PEC) analysis is known for its high photocurrent and low detection limits but can be susceptible to interference from reducing agents. Conversely, photocathode analyses offer greater stability but typically exhibit lower light responses. In this study, we developed a PEC biosensor for glucose detection, utilizing Ti 3 C 2 /Bi 2 S 3 as the photoanode and Ti 3 C 2 /Cu 2 O as the photocathode. The dual-photoelectrode system operates efficiently without an external power supply, leveraging the inherent difference in Fermi energy levels between the photoanode and photocathode. Ti 3 C 2 served as an electron transport channel at the photoanode and as a hole transport medium at the photocathode. The sensor exhibited excellent selectivity and stability and a detection limit of 0.0790 mM. This work highlights the potential of dual-photoelectrode PEC systems in enzyme sensing applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced biosensing and bioanalysis techniques · Advanced Nanomaterials in Catalysis · Electrochemical sensors and biosensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry and Chemical Engineering
Hainan University
College of Science
Qiongtai Normal University
NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine & The Second Affiliated Hospital
Hainan Medical University
Key Laboratory of Emergency and Trauma of Ministry of Education, The First Affiliated Hospital
Funding
Natural Science Foundation of Hainan Province · National Natural Science Foundation of China · Hainan Province Science and Technology Special Fund · CAMS Innovation Fund for Medical Sciences · Key Laboratory of Emergency and Trauma of Ministry of Education
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