Theranostics is a field of research that involves the combination of therapeutic and diagnostic techniques to deliver personalized medicine to patients. It aims to integrate diagnostic and therapeutic capabilities into a single platform, allowing for targeted treatment and monitoring of disease progression. Theranostics utilizes a range of technologies such as imaging techniques, biomarkers, and drug delivery systems to develop tailored treatment plans for individual patients. The ultimate goal of theranostics is to improve patient outcomes by providing more effective and personalized healthcare solutions.