Optically Active Nanomaterials for Point-of-Care Diagnosis in Healthcare

Nanomaterial-based point-of-care (POC) diagnostic devices have revolutionized healthcare monitoring by simultaneously miniaturizing the detection module and improving its sensitivity to detect a particular disease. In healthcare, POC testing (POCT) follows ASSURED criteria for diagnosis of different diseases near the place and time of patient care. Among all types of biosensors, optical biosensors offer simplicity and quick detection method, instrument-free naked eye detection, and options of noninvasive imaging. Use of optically active nanomaterial is one of the most promising candidates for the noninvasive POC diagnosis of diseases. In this chapter, the recent advances in applications of optically active nanomaterials for the diagnosis of different diseases like cancer, cardiovascular diseases, neurodegenerative diseases, and multiplexing are discussed.