Chapter 4: A Comparative Study of the Application of Biosensors in Human Health

This chapter delves into the pivotal role that biosensors play in transforming healthcare practices. Biosensors, comprising bioreceptors, transducers, and signal processors, detect and measure biological substances, offering high sensitivity and specificity in various healthcare applications. With applications ranging from disease detection to personalized medicine, they have revolutionized diagnostic practices, enabling early disease detection and tailored treatment regimens. This chapter explores the significance of biosensors in various healthcare sectors, highlighting their unparalleled accuracy and rapid detection capabilities. Despite their potential, biosensors face challenges related to sensitivity and cost-effectiveness, underscoring the need for critical evaluation and comparison of various approaches. Through a comprehensive analysis of biosensor applications in disease detection, metabolic diseases, treatment monitoring, breath-based diagnostics, DNA/RNA diagnostics, retinal prosthesis, phenotypic cancer diagnostics, medical mycology, and MRI contrast imaging, this chapter aims to provide insights into their efficacy, feasibility, and potential impact on healthcare delivery. By contributing to ongoing discussions in the field, this chapter will inspire further research and innovation, advancing the use of biosensors as transformative tools in improving healthcare delivery and patient outcomes.