Thakur, AbhinayAssad, HumiraKaya, SavasKumar, Ashish2024-10-262024-10-262023978-032391684-4978-032398530-7https://doi.org/10.1016/B978-0-323-91684-4.00005-0https://hdl.handle.net/20.500.12418/26318Biosensors research is a rapidly expanding discipline with vast numbers of articles published over the years and is a market worth billions of dollars. The use of biosensors has become critical in the fields of drug development, agriculture, biomedicine, food safety standards, and environmental monitoring. These biosensors have a range of vital features, including operational simplicity, high sensitivity, low-cost instrumentation, automation possibilities, and inherent miniaturization, such as biomarkers. Biosensors are important in the identification of biomarkers because they are simple to use and portable and allow real-time analysis. A powerful biomarker-based cancer diagnosis could improve early detection and intervention tremendously. Combining nanotechnology with biosensor systems could also improve diagnostic capability. This chapter discusses several biosensors and biosensing-based applications that are intended to promote science for the benefit of humans in various sectors. © 2023 Elsevier Inc. All rights reserved.en10.1016/B978-0-323-91684-4.00005-0info:eu-repo/semantics/closedAccessBiosensing; Biosensors; Cancer; Environment; MonitoringBook Chapter6316192-s2.0-85163451320