Research Progress of Nanomaterials-Based Sensors for Food Safety

With the improvement of people’s requirements for food quality, food safety has become the focus of society. More and more researchers continue to develop specific and convenient biochemical sensors for the detection of certain components in food, which also imposes higher requirements for the structure and performance of nanomaterials. Biochemical sensors based on carbon nanotubes, metal nanowires, nanofibers, metal–organic framework (MOF) compounds and other functional composite materials have the advantages of high sensitivity, great detection speed and reliable results, and have been continuously developed and widely used in medical, environmental and food safety fields. This paper reviews the progress of research on the application of the sensors based on the above functional nanomaterials in food detection in recent years, demonstrates the advantages brought by the functional composite materials, and discusses the challenges faced by the functional nanomaterials in the field of food safety testing, to provide an effective reference for developing functional composite material sensors for food safety testing.