Abstract
Rapid, reproducible and ultrasensitive assays can be nowadays achieved in clinical analysis with the help of optical sensors based on varied principles such as surface plasmon resonance, photoluminescence, vibrational spectroscopy and several others. In fact, optical sensors and biosensors have consolidated as a mature technology in healthcare control, offering bioanalytical information of great value for clinical uses. This chapter intends to provide a critical overview about the actual state and future perspectives of the optical sensing devices in medical diagnostics. The ubiquitous use of optical sensors in early-stage illness prediction and point-of-care sensing devices has immense promise, as explored in this chapter.
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