ABSTRACT
Biosensors are generally minute transportable devices that are used to identify the presence or even quantitate a range of biological analytes, e.g., biological structures, biomolecules, or microorganisms. The use of nanomaterials in biosensors adds a significant element into the overall biosensing technology by addressing issues related to specificity and sensitivity in detecting target molecules. Research and development in the field of nanobiosensors must remain very diverse and multidisciplinary in order to continue to develop various nanobiosensor prototypes. Label-based detection requires a secondary molecule or amplification step for the purpose of biosensing. Electrical biosensors are very popular due to their user-friendly and cost-effective nature, which enable them to be used as point-of-care diagnostics. Integrating the magnetic properties of magnetic nanoparticles in biosensing has made the biosensors more sensitive and effective with wide-ranging applications. The rapid growth of nanotechnology and its introduction into biosensing technology have proved to be significant blessings in biomedical applications such as diagnosis, therapy, etc.
