In-Situ Synthesized Co-rGO Nanocomposite: A Robust Selective Material for Phosphate Electrochemical Sensor

The recent advancements in the in-situ synthesis of various nanomaterials have garnered significant interest and been widely utilized across multiple industries. In this context, this study presents the development of a highly sensitive sensor for the detection of inorganic phosphate from human serum. This sensor utilizes a laser-assisted ultra-rapid in-situ synthesized cobalt-reduced graphene oxide (Co-rGO) composite. Structural and morphological changes were observed and optimized using standard characterization techniques. The developed sensor verified remarkable performance within a linear range of 1 to 100 mM, exhibiting a detection limit of 0.052 mM for phosphate. In the future, the method for developing an in-situ material will be able to initiate a larger scale rapid composite material synthesis and a disposal sensor with a portable, user-friendly phosphate sensor for adults and patients with renal disease.