FoodContamination contaminationFood contaminations isBiosensor a worldwide problem due to its susceptibility to contaminationContamination, which raises serious human health concerns that affect both well-being and economic stability. Quality of food without contaminationContamination is the fundamental requirement for maintaining good health. For that purpose, taking appropriate steps to manage food stay away from different circumstances that lead to food contaminationFood contaminations. It is essential to develop rapid, accurate, sensitive, and cost-effective technologiesTechnology to safeguard the food chain and products from hazardous substances dangerous to human health, including contaminants, pathogens, heavy metalsHeavy metals, allergens, etc. Conventional approaches are limited due to their complex procedures and the need for specialized staff; hence, the development of highly precise technologiesTechnology. The World Health Organization states that millions worldwide are impacted by severe food poisoning, thus affecting the healthcare system and economic output. BiosensorsBiosensor, integrating a biological component and analytical tool with a physicochemical transducerTransducer, are very sensitive instruments. The significant research in materials science and nanotechnologyNanotechnology has consistently reinforced the domain of biosensors. Currently, nanomaterials like graphene, carbon nanotubes, and gold are used in biosensing at an advanced level. These materials provide higher electrical conductivity and catalytic activity, which improves the sensitivity, reliability, and detection capabilities of biosensors. The carbon nanostructures serve as superior transducing elements, facilitating the detection of pollutantsPollutants at minimal quantities. In biosensing, the biological component that selectively interacts with the target analyte is referred to as the bioreceptor; it may consist of an enzymeEnzymes, an antibodyAntibodies, a nucleic acid, or even whole cells or tissues, providing the requisite findings. The bioreceptor binds to or interacts with a certain contaminant, it sends out an appropriate signal then transducerTransducer changes this signal into an electrical, optical, thermal, or mechanical signal that can be measured. This beautiful design gives biosensorsBiosensor benefits that no other technologyTechnology can match.