Journal
BIOSENSORS-BASEL
Volume 12, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/bios12050314
Keywords
two-dimensional materials; nanohybrids; electrochemical sensors; biosensors; food safety; biomolecular detection
Funding
- Taishan Scholars Program of Shandong Province [tsqn201909104]
- High-Grade Talents Plan of Qingdao University
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This review discusses the recent advances in fabrication of 2DM-based electrochemical sensors and biosensors for applications in food safety and biomolecular detection related to human health. It includes the synthesis methods, structure, and surface chemistry of various 2DMs, as well as their applications in detecting nitrite, heavy metal ions, antibiotics, pesticides, and key small molecules for disease monitoring.
Two-dimensional materials (2DMs) exhibited great potential for applications in materials science, energy storage, environmental science, biomedicine, sensors/biosensors, and others due to their unique physical, chemical, and biological properties. In this review, we present recent advances in the fabrication of 2DM-based electrochemical sensors and biosensors for applications in food safety and biomolecular detection that are related to human health. For this aim, firstly, we introduced the bottom-up and top-down synthesis methods of various 2DMs, such as graphene, transition metal oxides, transition metal dichalcogenides, MXenes, and several other graphene-like materials, and then we demonstrated the structure and surface chemistry of these 2DMs, which play a crucial role in the functionalization of 2DMs and subsequent composition with other nanoscale building blocks such as nanoparticles, biomolecules, and polymers. Then, the 2DM-based electrochemical sensors/biosensors for the detection of nitrite, heavy metal ions, antibiotics, and pesticides in foods and drinks are introduced. Meanwhile, the 2DM-based sensors for the determination and monitoring of key small molecules that are related to diseases and human health are presented and commented on. We believe that this review will be helpful for promoting 2DMs to construct novel electronic sensors and nanodevices for food safety and health monitoring.
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