Since a long time ago, one of the trendiest topics catching the attention of scientists is biosensing. This is true because biological systems are highly complex and are inextricably linked to the presence of a wholesome environment. Significant changes have also recently been made to the design of biosensors. Biosensors have gained popularity for a variety of uses, including the assessment of food quality, environmental monitoring, and the identification of clinical and metabolic issues. The field of nanotechnology has introduced several intriguing elements that have the potential to enhance sensing phenomena. Utilizing a variety of nanomaterials, including nanoparticles, nanotubes, nanorods, and nanowires, has greatly improved repeatability and allowed for speedier detection. The assembly of nanomaterial features is what gives rise to the special qualities of nanomaterials, which include strong electrical conductivity, improved shock resistance, sensitive reactions like piezoelectric and adaptable color-based detecting methods. This research focuses on the many kinds of biosensors that are based on various kinds of nanomaterials and discusses their implications and developmental features.