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

Lv, Shuzhen; Zhou, Yuting; Wang, Huijie; Kong, Lingyi; Bi, Sai

doi:10.1016/j.bios.2024.116553

Biosensors and Bioelectronics

2024

DOI: 10.1016/j.bios.2024.116553

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

Shuzhen Lv,

Yuting Zhou,

Huijie Wang

et al.

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Cited by 5 publications

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Construction of CdIn₂S₄/MXene‐TiO₂ Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

Zhang,

Zhou,

Zhang

et al. 2024

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Interfacial charge‐carrier complexation is a bottleneck problem governing the gating effect of organic photoelectrochemical transistor (OPECT) biosensors. Therefore, it has long been desired to enhance the OPECT gating effect and realize the maximum transconductance at zero bias. In this study, an in situ engineered heterojunction gating and nano‐enzymatic catalytic integration of OPECT‐colorimetric dual‐mode sensing platform is developed for dibutyl phthalate detection. Specifically, highly efficient photoactive CdIn2S4/MXene‐TiO2 Z‐scheme heterojunction is constructed by two‐step in situ engineering to promote effective separation of electron–hole pairs to achieve sensitive gating of poly(ethylene dioxythiophene):poly(styrene sulfonate)‐based OPECT. Target‐induced rolling circle amplification is used as the signal amplification unit, and Ag@Carbon Sphere (Ag─CS) is used as the signal conditioning element, which on the one hand causes shunting of photogenerated electrons, leading to energy transfer and reduced gating. At the same time, Ag─CS acts as a peroxidase‐mimicking nanozyme to oxidize the TMB discoloration. Importantly, the prepared sensor exhibits good selectivity and high sensitivity for the detection of dibutyl phthalate with a detection limit of 0.08 fM and also shows superior detection ability in real water bodies. Therefore, the sensor provides an ideal choice for toxic molecule detection and has a promising application in environmental monitoring and food analysis.

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Construction of CdIn₂S₄/MXene‐TiO₂ Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

Zhang,

Zhou,

Zhang

et al. 2024

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A sensitive electrochemiluminescence immunosensor for CEA detection based on the ECL-RET between zinc-based metal–organic frameworks and ZiF-8@PDA

Li,

Cheng,

Ren

et al. 2025

Bioelectrochemistry

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Constructing a highly sensitive duplex immunoassay using AuNPs and AgNPs as nanolabels for investigating the epithelial-mesenchymal transition occurring on circulating tumor cells with lung cancer patients

Dai,

He,

Zhou

et al. 2025

Biosensors and Bioelectronics

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

Cited by 5 publications

References 34 publications

Construction of CdIn₂S₄/MXene‐TiO₂ Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

Construction of CdIn₂S₄/MXene‐TiO₂ Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

A sensitive electrochemiluminescence immunosensor for CEA detection based on the ECL-RET between zinc-based metal–organic frameworks and ZiF-8@PDA

Constructing a highly sensitive duplex immunoassay using AuNPs and AgNPs as nanolabels for investigating the epithelial-mesenchymal transition occurring on circulating tumor cells with lung cancer patients

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

Cited by 5 publications

References 34 publications

Construction of CdIn2S4/MXene‐TiO2 Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

Construction of CdIn2S4/MXene‐TiO2 Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

A sensitive electrochemiluminescence immunosensor for CEA detection based on the ECL-RET between zinc-based metal–organic frameworks and ZiF-8@PDA

Constructing a highly sensitive duplex immunoassay using AuNPs and AgNPs as nanolabels for investigating the epithelial-mesenchymal transition occurring on circulating tumor cells with lung cancer patients

Contact Info

Product

Resources

About

Construction of CdIn₂S₄/MXene‐TiO₂ Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias

Construction of CdIn₂S₄/MXene‐TiO₂ Z‐Scheme Heterojunction for High‐Gain Organic Photoelectrochemical Transistor to Achieve Maximized Transconductance at Zero Bias