Advances in MoS<sub>2</sub>-Based Biosensors: From Material Fabrication and Characterization to Biomedical, Environmental, and Industrial Applications

The growing demand for low-cost biosensors has stimulated the study of new technologies and materials like molybdenum disulfide (MoS<sub>2</sub>). Due to its electroconductive nature and high surface-to-volume ratio, it allows for the ultra-sensitive detection of biomarkers. The crystal...

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Bibliographic Details
Main Authors: Chun-Liang Lai, Arvind Mukundan, Riya Karmakar, Roopmeet Kaur, Kuo-Liang Huang, Hsiang-Chen Wang
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Biosensors
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Online Access:https://www.mdpi.com/2079-6374/15/6/371
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Summary:The growing demand for low-cost biosensors has stimulated the study of new technologies and materials like molybdenum disulfide (MoS<sub>2</sub>). Due to its electroconductive nature and high surface-to-volume ratio, it allows for the ultra-sensitive detection of biomarkers. The crystal structure of MoS<sub>2</sub> provides it with a unique micrometer thickness, making it appropriate for biosensing in healthcare, environmental monitoring, and food safety. As compared to traditional materials, MoS<sub>2</sub> can work without labels (through field-effect transduction or plasmonic shifts) while maintaining biocompatibility and low-cost fabrication, which fill significant voids in the early diagnosis of diseases. This paper provides an overview of the recent advancements in MoS<sub>2</sub>-based biosensors, which are primarily focused on the field-effect transistors and surface plasmon resonance techniques and fabrication methods for MoS<sub>2</sub>-based biosensors like mechanical exfoliation, liquid-phase exfoliation, physical vapor deposition, chemical vapor deposition, and chemical exfoliation, applications in various industries, and their characterization techniques to evaluate the quality and functionality of MoS<sub>2</sub> nanosheets in biosensors. While certain challenges remain like improving conductivity and scalability, MoS<sub>2</sub>-based biosensors serve as a powerful tool for the precise and reliable detection of biomarkers in environmental, food, and healthcare industries.
ISSN:2079-6374