Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The accurate detection of HO is crucial in oxidase-based cathodic photoelectrochemical enzymatic bioanalysis but will be easily compromised in the conventional photoelectrode-electrolyte diphase system due to the fluctuation of oxygen levels and the similar reduction potential between oxygen and HO. Herein, a solid-liquid-air triphase bio-photocathode based on a superhydrophobic three-dimensional (3D) porous micro-nano-hierarchical structured CuO@TiO film that was constructed by controlling the wettability of the electrode surface is reported. The triphase photoelectrochemical system ensures an oxygen-rich interface microenvironment with constant and sufficiently high oxygen concentration. Moreover, the 3D porous micro-nano-hierarchical structures possess abundant active catalytic sites and a multidimensional electron transport pathway. The synergistic effect of the improved oxygen supply and the photoelectrode architecture greatly stabilizes and enhances the kinetics of the enzymatic reaction and HO cathodic reaction, resulting in a 60-fold broader linear detection range and a higher accuracy compared with the conventional solid-liquid diphase system.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.langmuir.2c02706 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
An integrated wearable photo-electrochemical sensor for visible light amplified uric acid monitoring in sweat.
Biosens Bioelectron
December 2025
The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China; School of Instrument Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; State Key Laboratory for Manufacturing Systems Engineering at Xi'an Jiaotong University, Xi'an, 710049, China. Electronic ad
Uric acid (UA), a crucial biomarker for chronic metabolic disorders such as gout and hyperuricemia, necessitates non-invasive monitoring for effective disease management. However, wearable sensor for real-time UA detection face significant challenges due to the low UA concentration (<100 μM) in human sweat and the difficulty of multi-functional integration. Here, we developed an integrated wearable photo-electrochemical (PEC) sensor for UA detection in sweat.
View Article and Find Full Text PDFMXene-Based Flexible Paper Chip for Glucose Detection in Sweat in Low-Temperature Environments.
Sensors (Basel)
July 2025
College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
In enzymatic reaction glucose detection chips, the enzyme can easily dislodge from the electrode, which harms both the chip and test stability. Additionally, enzyme activity significantly decreases at low temperatures. Consequently, immobilizing the enzyme at the appropriate substrate and ambient temperature is a critical step for improving the chip.
View Article and Find Full Text PDFIntegration of MOF-derived ZnO/BiS/ZnInS double Z-scheme heterostructure and dual-enzyme active HPAu/Ag@AFGQDs nanospheres for PEC/colorimetric dual-mode bioassay of caspase-3 activity.
Anal Chim Acta
September 2025
College of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China.
Caspase-3 is an important biomarker of apoptosis-relevant diseases, so it has great clinical value to determine caspase-3 activity. Herein, an innovative photoelectrochemical (PEC)/colorimetric dual-mode biosensor was established for highly sensitive and reliable determination of caspase-3 activity. The advanced Zn-based metal organic framework (Zn-MOF)-derived ZnO polyhedrons/BiS nanorods/3D sakura-like ZnInS double Z-scheme heterostructure was prepared by layer-by-layer assembly on the indium tin oxide electrode (termed as ZnInS/BiS/ZnO/ITO), which offered a strong initial photocurrent.
View Article and Find Full Text PDFMagnetic-enzymatic synergy driven photoelectrochemical aptasensor on a microfluidic chip for sub-pM kanamycin detection.
Lab Chip
July 2025
School of Environmental and Chemical Engineering & Shanghai Key Laboratory of Materials Protection and Adv. Mater. in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China.
The escalating global concern over antibiotic contamination in food chains and aquatic ecosystems demands innovative solutions for rapid, on-site monitoring of residual drugs. This study presents an autonomous microfluidic photoelectrochemical (PEC) biosensing platform that synergizes magnetic purification, enzymatic amplification, and nanohybrid-enhanced signal transduction for field-deployable, ultrasensitive kanamycin (KAN) detection. The system integrates three functional layers: aptamer-functionalized magnetic beads (MBs) for selective KAN isolation, alkaline phosphatase (ALP)-catalyzed hydrolysis of L-ascorbic acid 2-phosphate (AAP) to generate electron-donating ascorbic acid (AA), and a TiO/NbC/carbon nitride (CN) photoanode with a type-II heterojunction architecture for an amplified photocurrent response.
View Article and Find Full Text PDFA simple-structured enzyme-free photoelectrochemical sensor: Facile deposition of mesoporous BiVO thin film for selective ascorbic acid detection with outstanding long-term stability.
Food Chem
October 2025
Department of Physics, Sharif University of Technology, Tehran 11555-9161, Iran; Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588-89694, Iran.
An enzyme-free photoelectrochemical (PEC) sensor with a simple structure and excellent stability was developed for the detection of ascorbic acid (AA). The sensing platform was constructed based on the in-situ preparation and deposition of a mesoporous BiVO layer using an innovative technique. The sensor exhibited high selectivity, repeatability, and outstanding long-term stability, with a linear detection range of 0.
View Article and Find Full Text PDF