Nanosensors Based on DNA as an Emerging Technology for the Detection of Disease

An early age detection of diseases is a big challenge in the healthcare market. There are different conventional methods available for the detection of various diseases, but they are time consuming, labor intensive, require sample preparation as well as need trained personnel. Today, Nanotechnology has potential applications in the field of the public health sector for the detection of viruses and bacteria. Recent advancements in nanosensing technology, especially in the field of biosensors provides a more accurate tool for early diagnosis, reduce cost and fast detection, especially with cardiovascular and diabetes which have high healthcare costs. The DNA-based nanosensors work on different principles which include localized surface plasmon resonance, Raman scattering, fluorescence, and other techniques. The emerging ability of nanoscale materials to control the patterns of matter can lead to entirely new types of nanosensors. The present chapter describes the current status of nanosensors based on DNA in the context of different methods for detection. The conclusion part puts light on the vast possibilities of different types of nanomaterials into sensor arrays and the expected outcomes and limitations.