Efficacy of Metallic Nanoparticles and Nanocarriers as an Advanced Tool for Imaging and Diagnosis: Insight into Theranostic Applications

The development of nanotechnology has brought diagnosis and therapy closer together, making theranostic compounds a promising area of study. Theranostic substances can both diagnose and treat a patient's condition. For their potential use in treating a wide range of ailments, including cancer, TB, diabetes, etc., metallic nanoparticles are currently the subject of intensive research. Modern nanotechnology allows for the precise assembly of medicinal chemicals onto metallic nanoparticles, which can then be used for targeted drug delivery, illness detection, and even imaging. Problems that must be solved before metallic theranostic agents can be successfully implemented in clinical settings include their complicated design, instability, toxicity, drug release regulation, mass production, and the potential for behavioral, psychological, and metabolic side effects. This article reviews the recent progress made in using metallic nanoparticles like gold, carbon, and iron oxide nanoparticles as theranostic agents. We also provide a brief summary of the various imaging properties of metallic nanoparticles. Finally, this in-depth analysis discusses new patents associated with metallic nanoparticles as a theranostic agent.