Volume 42, Issue 17 pp. 1999-2004
Concise Report

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

Ke-Xin Xu

Ke-Xin Xu

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 China

These authors contribute equally.

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Cheng Yuan

Cheng Yuan

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 China

These authors contribute equally.

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Hao Lou

Hao Lou

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 China

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Feng-Zao Chen

Feng-Zao Chen

School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, Jiangsu, 318000 China

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Ling Zhang

Ling Zhang

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 China

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Guangxu Chen

Corresponding Author

Guangxu Chen

School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong, 510006 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
De-Man Han

Corresponding Author

De-Man Han

School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, Jiangsu, 318000 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Wei-Wei Zhao

Corresponding Author

Wei-Wei Zhao

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
First published: 25 April 2024
Citations: 5

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

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