Optimization of Graphene based biosensor designed with metal oxides and easy electrochemical test with various biomolecules

The purpose of this research is to develop a graphene-based self-assembly method for the easy electrochemical detection of albumin, urea, and ascorbic acid in a nanocomposite (ZnO-G-SnO2). Excessive ingestion of these biomolecules negatively impacts the kidney, liver, and digestive tract. However, the current detection methods for these biomolecules are expensive, time-consuming, and require highly skilled operators. Therefore, we aim to develop an easily detectable method for these biomolecules with good sensitivity. The ZnO-G-SnO2 nanocomposite has unique properties such as high sensitivity, excellent electron mobility, selectivity, low cost, and improved surface attributes, which make it a promising material for sensitive and reliable biosensors. We evaluated the synthesized materials using electrochemical performance instruments, electron attitude regulating spectroscopy, and surface morphology approaches. Under ideal conditions, the sensor is able to detect biomolecules in electrical tests ranging from 0.05 mL to 0.25 mL, demonstrating excellent sensitivity. This analysis confirms the accurate detection of these biomolecules.