Photoactive conjugated microporous polymer@C60 with quencher on tailed Y-triangular DNA structure for high-performance signal-off photoelectrochemical biosensing

Journal of Hazardous Materials, Год журнала: 2023, Номер 457, С. 131724 - 131724

Опубликована: Май 27, 2023

Язык: Английский

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Synthesis, functionalization and photoelectrochemical immunosensing application of WO3-based semiconductor materials

TrAC Trends in Analytical Chemistry, Год журнала: 2023, Номер 165, С. 117149 - 117149

Опубликована: Июнь 20, 2023

Язык: Английский

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Hybridization Chain Reaction-Enhanced Biocatalytic Precipitation on Flower-like Bi₂S₃: Toward Organic Photoelectrochemical Transistor Aptasensing with High Transconductance

Analytical Chemistry, Год журнала: 2023, Номер 95(26), С. 9983 - 9989

Опубликована: Июнь 20, 2023

Organic photoelectrochemical transistor (OPECT) bioanalysis has recently emerged as a promising avenue for biomolecular sensing, providing insight into the next-generation of biosensing and organic bioelectronics. Herein, this work validates direct enzymatic biocatalytic precipitation (BCP) modulation on flower-like Bi2S3 photosensitive gate high-efficacy OPECT operation with high transconductance (gm), which is exemplified by prostate-specific antigen (PSA)-dependent hybridization chain reaction (HCR) subsequent alkaline phosphatase (ALP)-enabled BCP toward PSA aptasensing. It been shown that light illumination could ideally achieve maximized gm at zero bias, efficiently modulate device's interfacial capacitance charge-transfer resistance, resulting in significantly changed channel current (IDS). The as-developed aptasensor realizes good analysis performance detection limit 10 fg mL–1. This features transistors expected to stimulate further interest exploring advanced BCP-interfaced bioelectronics unknown possibilities.

Язык: Английский

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Flexible Ti₃C₂T_x MXene Regulated Photoelectrochemical Sensing Platform for Sensitive Monitoring of Dopamine

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 6, 2024

Abstract Flexible photoelectrochemical (PEC) based sensors have been extensively investigated for noninvasive healthcare monitoring. However, known electrode materials struggle to combine technologically relevant metrics of high sensitivity and flexibility due their low electrical conductivity fragile mechanical properties. Herein, a flexible PEC‐based sensor dopamine (DA) detection is presented by integrating highly conductive MXene between CdS quantum dots g‐C 3 N 4 with suitable energy level matching. Theoretical calculations reveal that the interfaces constructed PEC electrodes enhanced electronic derived from not only improve electron transfer kinetics, but form built‐in electric fields at interfaces, facilitating separation efficiency electron–hole pairs. As result, as‐prepared display combined advantages wide range (1 nM–0.1 mM), limit (0.48 nM), stability, selectivity, repeatability DA detection. Building on these metrics, scalable screen‐printing method further developed platforms. These all‐integrated exhibit stable photocurrent signals under different bending angles cycles. Therefore, this work demonstrates development sensitive holds promise future

Язык: Английский

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A novel photoelectrochemical self-screening aptamer biosensor based on CAU-17-derived Bi2WO6/Bi2S3 for rapid detection of quorum sensing signal molecules

Analytica Chimica Acta, Год журнала: 2024, Номер 1304, С. 342558 - 342558

Опубликована: Март 30, 2024

Язык: Английский

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Spatial-resolved and self-calibrated 3D-printed photoelectrochemical biosensor engineered by multifunctional CeO2/CdS heterostructure for immunoassay

Biosensors and Bioelectronics, Год журнала: 2024, Номер 262, С. 116553 - 116553

Опубликована: Июль 14, 2024

Язык: Английский

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Recent Advances in Photoelectrochemical Sensors for Analysis of Toxins and Abused Drugs in the Environment

Chemosensors, Год журнала: 2023, Номер 11(7), С. 412 - 412

Опубликована: Июль 22, 2023

Toxic pollutants in the environment, such as toxins and abused drugs, have posed a major threat to human health ecosystem security. It is extremely desirable develop simple, low-cost, sensitive, reliable techniques for detection of these environment. As booming analytical method, photoelectrochemical (PEC) sensors possess low background noise high sensitivity. The performances PEC are fundamentally related photoelectric conversion efficiency, which mainly depends on properties photoactive materials. This review aims summarize engineered materials, i.e., semiconductors semiconductor-based heterojunctions, well their actual applications, with emphasis sensing mechanisms analysis drugs Finally, future research perspectives this field also discussed.

Язык: Английский

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Construction of double Z-scheme Ag3PO4/MOF-In2S3/Bi2S3 heterojunction by micro-Ag bridges for photocatalytic degradation of levofloxacin

Applied Surface Science, Год журнала: 2023, Номер 648, С. 159010 - 159010

Опубликована: Ноя. 26, 2023

Язык: Английский

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Enhancing the photoelectric performance of TiO2-based heterojunction using the hydrothermal decomposition of MIL-125 strategy for sensitive detection of Bisphenol A

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 413, С. 135881 - 135881

Опубликована: Май 1, 2024

Язык: Английский

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Development of a Photoelectrochemical Microelectrode Using an Organic Probe for Monitoring Hydrogen Sulfide in Living Brains

Analytical Chemistry, Год журнала: 2024, Номер 96(49), С. 19822 - 19832

Опубликована: Ноя. 22, 2024

Hydrogen sulfide (H2S) is an important bioactive molecule that plays a significant role in various functions, particularly the living brain, where it closely linked to cognition, memory, and several neurological diseases. Consequently, developing effective detection methods for H2S essential studying brain functions underlying mechanisms of these This study aims construct novel photoelectrochemical (PEC) microelectrode Ti/TiO2@HSP quantitative monitoring levels brain. The PEC formed by covalently bonding specifically designed organic probe HSP, which possesses D-π–A structure, surface TiO2 nanotubes generated via situ anodic oxidation titanium wire. HSP can effectively react with generate photocurrent response under long-wavelength excitation light (560 nm), thereby achieving H2S. sensor demonstrates high sensitivity good selectivity. In vivo experiments utilizing enable dynamic changes across regions mouse findings reveal normal mice, concentration hippocampus significantly higher than striatum cerebral cortex. Additionally, following propargylglycine drug stimulation, concentrations different were observed decrease, most substantial reduction noted hippocampus. suggests cystathionine γ-lyase (CSE) primary enzyme responsible production this area, while exhibits less pronounced decrease concentration, indicating reliance on alternative enzymatic pathways production. Therefore, not only successfully develops high-performance but also provides new experimental tools theoretical foundations further exploring roles neurophysiological pathological processes.

Язык: Английский

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