Review: Perovskite nanostructures materials versatile platform for advance biosensor applications

•Perovskite nanostructures exhibit unique characteristics for developing highly sensitive and selective biosensors.•The enhanced performance of these biosensors is attributed to the exceptional optical properties and electrical conductance of perovskite nanostructures.•In this manuscript discusses the multifaceted benefits of perovskite nanostructures in biosensor applications.•In this manuscript also highlights the potential challenges and future prospects in the field.•This research chapter underscores the immense potential of perovskite nanostructures as a transformative platform for biosensors. The distinct presence of a central atom surrounded by eight ligands leads to higher light absorption and charge carrier mobility in perovskite materials. The peculiar nature of the structure inspires all the scientists and researchers to work more in sustainable applications, such as solar cells, light emitting diodes, transistor and biosensors. The capability of perovskite material in detecting smaller molecules such as O2, NO2 and CO2 is higher. Therefore, several biosensors are demonstrated based on the perovskite nanomaterial to various chemical and biological species with both solid and solution states. The immense sources of research articles thrived the author, to review the perovskite nanomaterials in the dimension of biosensor application extensively. This review covers major three areas of perovskite nanomaterial, such as components and characteristics of biosensors, properties and preparation of perovskite materials and application and research trends of perovskite nanostructure biosensor. [Display omitted]