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Organic Electrochemical Transistor with MoS₂ Nanosheets Modified Gate Electrode for Sensitive Glucose Sensing.

ABSTRACT: An organic electrochemical transistor (OECT) with MoS₂ nanosheets modified on the gate electrode was proposed for glucose sensing. MoS₂ nanosheets, which had excellent electrocatalytic performance, a large specific surface area, and more active sites, were prepared by liquid phase ultrasonic exfoliation to modify the gate electrode of OECT, resulting in a large improvement in the sensitivity of the glucose sensor. The detection limit of the device modified with MoS₂ nanosheets is down to 100 nM, which is 1~2 orders of magnitude better than that of the device without nanomaterial modification. This result manifests not only a sensitive and selective method for the detection of glucose based on OECT but also an extended application of MoS₂ nanosheets for other biomolecule sensing with high sensitivity.

SUBMITTER: Hu J

PROVIDER: S-EPMC10490818 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Organic Electrochemical Transistor with MoS2 Nanosheets Modified Gate Electrode for Sensitive Glucose Sensing.

Hu Jin J Dai Jiajia J Huang Caiping C Zeng Xierong X Wei Weiwei W Wang Zhezhe Z Lin Peng P

Sensors (Basel, Switzerland) 20230827 17

An organic electrochemical transistor (OECT) with MoS2 nanosheets modified on the gate electrode was proposed for glucose sensing. MoS2 nanosheets, which had excellent electrocatalytic performance, a large specific surface area, and more active sites, were prepared by liquid phase ultrasonic exfoliation to modify the gate electrode of OECT, resulting in a large improvement in the sensitivity of the glucose sensor. The detection limit of the device modified with MoS2</s ...[more]

PMID: 37687905

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