Bifunctional iron-porphyrin metal-organic frameworks for organic photoelectrochemical transistor gating and biosensing

Chinese Chemical Letters, Год журнала: 2024, Номер unknown, С. 110080 - 110080

Опубликована: Июнь 1, 2024

Язык: Английский

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Light‐Broadened Faradaic Regime of Organic Electrochemical Transistors for Accelerated Amperometric Biodetection

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 29, 2024

Abstract Faradaic‐mode organic electrochemical transistors (OECT) are promising but usually need hundreds of millivolts to sustain redox reactions. Decrease or even removal the voltage penalty is highly desirable. Herein, Faradic regime OECT broadened toward zero bias by integrating a p‐n heterojunction Cu 2 S‐diethylenetriamine (DETA)‐CdS for efficient photogating poly(3,4‐ethylenedioxythiophene): poly(styrene sulfonate) channel. Upon light illumination, it found that an obvious Faradaic process evolved at gate/electrolyte interface under gate bias, suggesting potential sensitive amperometric biodetection with enhanced signal resolution. At S‐DETA‐CdS/liquid interface, biosensing introduced, combining DNA walker and enzymatic biocatalytic precipitation produce target‐dependent diffusion barrier, modulating output variations irradiation compared in dark. The proposed system achieves desired analytical performance representative target miRNA‐10b low detection limit 0.21 fM. This work features light‐mediated device resolution provides new operational paradigms insights novel optoelectronics interfacing biological systems.

Язык: Английский

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Metal‐Organic Framework Nanozyme Enabling Dual‐Functional Photo‐Induced Charge Transfer and Biomimetic Precipitation for Advanced Organic Photoelectrochemical Transistor Bioanalysis

Chinese Journal of Chemistry, Год журнала: 2024, Номер 42(17), С. 1999 - 2004

Опубликована: Апрель 25, 2024

Comprehensive Summary We report herein the first observation of MOF nanozyme enabling dual‐functional photo‐induced charge transfer and biomimetic precipitation for advanced organic photoelectrochemical transistor (OPECT) bioanalysis. Specifically, Fe/Co‐MIL‐88, serving simultaneously as semiconductor nanozyme, was explored a gating module in OPECT. Upon light illumination, it could accelerate photogate to produce enhanced voltage. Meanwhile, its catalytic property efficiently block nanopores Fe/Co‐MIL‐88 thus alter device characteristics. The generic bioanalytical potential such rationale then demonstrated with an aptasensing assisted by magnetic separation. This work represents exploration from nanozymes OPECT bioanalysis, is expected attract more interest various novel optoelectronic bioanalytics.

Язык: Английский

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Homochiral light-sensitive metal-organic framework photoelectrochemical gated transistor for enantioselective discrimination of monosaccharides

Biosensors and Bioelectronics, Год журнала: 2024, Номер 258, С. 116336 - 116336

Опубликована: Апрель 25, 2024

Язык: Английский

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Synergetic Enzyme-Incorporated Metal–Organic Framework and Polyoxometalate Nanozyme: Achieving Stable Tandem Catalysis for Organic Photoelectrochemical Transistor Bioanalysis

Analytical Chemistry, Год журнала: 2024, Номер 96(41), С. 16355 - 16361

Опубликована: Окт. 7, 2024

Organic photoelectrochemical transistor (OPECT) has emerged as a promising technique for biomolecule detection, yet its operational rationale remains limited due to short development time. This study introduces stable tandem catalysis protocol by synergizing the enzyme-incorporated metal-organic frameworks (E-MOFs) with polyoxometalate (POM) nanozyme sensitive OPECT bioanalysis. The zeolitic imidazolate framework-8 (ZIF-8) acts skeleton protect encapsulated glucose oxidase (GOx), allowing catalytic generation of H

Язык: Английский

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3D Z-Scheme Conjugated Polymer/Cu2O for Organic Photoelectrochemical Transistor Bioassay

Biosensors and Bioelectronics, Год журнала: 2024, Номер 268, С. 116877 - 116877

Опубликована: Окт. 24, 2024

Язык: Английский

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Nanocomposite Hydrogel Enables Color‐Gated Organic Photoelectrochemical Transistor Biodetection

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 10, 2024

Abstract The newly emerged organic photoelectrochemical transistor (OPECT) has been demonstrated promising in diverse sectors, yet its underlying operation rationale remains largely unexplored due to short development time. Color, arising from the light‐matter interactions, is ubiquitous nature. Here concept of color‐gated OPECT biodetection based on a nanocomposite hydrogel proposed and devised, which exemplified by automatic color change Pt nanocubes (NCs)‐encapsulated with Ag + ‐responsiveness. Linking sandwich immunorecognition labeled silver nanoparticles (Ag NPs), chemical etching‐released can sensitively affect NCs‐catalyzed conversion o‐phenylenediamine, leading thus altered gating characteristics. This study features expected catalyze new category advanced “colored” optobioelectronics, given rich light‐matter‐bio interactions.

Язык: Английский

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Graphene Photoelectrochemical Transistor for Dual‐Directional Signal‐on Biosensing

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 27, 2025

Abstract Recent research has demonstrated the potential of photogating in regulating characteristics photoelectrochemical transistors. Here it is reported graphene transistor (GPECT) with dual‐directional signal‐on biosensing as exemplified by channel gated p/n‐type metal–organic frameworks (MOFs) upon light illumination toward aptasensing. Due to shift Dirac point induced MOFs, operation mutually verifiable dual readout could be achieved. For aptasensing, assistance biocatalytic precipitation reaction, such a device validated for highly sensitive detection thrombin limits low 5.2 and 0.1 f m , respectively. This study demonstrates not only general protocol GPECTs but also unique novel optoelectronics.

Язык: Английский

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Recent Advances of Nucleic Acids-Based Nanopipette: From Fundamental to Applications

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 12, 2025

Язык: Английский

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Organic photoelectrochemical transistor biosensor for the detection of histone deacetylase Sirt1 based on the cleavage of deacetylated peptide chain by recombinant lysine endopeptidase

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 417, С. 136144 - 136144

Опубликована: Июнь 14, 2024

Язык: Английский

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