Ferro-Magnetic Nanoparticles-based Biosensors for Environmental Monitoring

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Nanotechnology is a new technology that has attracted more and more attention in biomedicine, electronics, industry, and environmental applications. Nanoparticles (NPs) have several applications in a number of social fields because of their exceptional optical, catalytic, thermal, and electrical capabilities. Magnetic NPs (MNPs), which feature exceptional superparamagnetism, a sizable specific surface area, simplicity of surface modification, chemical stability, biocompatibility, and high mass transfer, are one of the most crucial key types. Owing to these features, ferro-MNPs (FMNPs) have received large consideration because of their applications in medicine, biosensing, catalysis, agriculture, and the environment. This chapter briefly introduces the main synthesis methods of FMNPs and describes the characterization and composition of nano-biosensors. Then, the potential applications of FMNP-based nano-biosensors in diverse fields are discussed through typical examples. Finally, the research status, challenges, and development prospects of FMNP-based nano-biosensors are summarized.