Abstract

Abstract Silver nanoclusters (AgNCs) have emerged as highly adaptable nanomaterials with vast potential in theranostic applications, by integrating therapeutic and diagnostic capabilities within a single platform. This review summarizes current developments in the synthesis, characterization, and use of AgNCs for theranostics. AgNC synthesis has substantially advanced, and a variety of techniques such as chemical reduction, green synthesis, and templated methods are being used to manage stability, size, and form. AgNCs’ optical characteristics, including high fluorescence and surface-enhanced Raman scattering (SERS) signals, make them ideal for bioimaging and diagnostic applications. Furthermore, AgNCs’ surface chemistry enables simple functionalization with therapeutic drugs and targeting ligands, thus improving effectiveness and selectivity. AgNCs have been used in several diagnostic imaging modalities, including photoacoustic imaging, fluorescence imaging, and SERS-based sensing. They are suitable for both in vitro and in vivo imaging applications because of their exceptional photostability and biocompatibility, which enables real-time tracking of disease progression and therapy response.

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