Preparation of Ag Nano Clusters as a Glucose Fluorescent Sensor

Ultrasmall noble metal nanoclusters (NCs), typically composed of several to a hundred metal atoms, have unraveled new interesting optical and electronic properties, that present unique physical and chemical properties between single atoms and large nanocrystals (42nm). Luminescent Au and Ag NCs are promising optical probes for bioimaging, anti bacterial and biosensing applications. Two main Ag NCs are reported as Macromoleculeprotected luminescent NCs and Thiolprotected luminescent NCs [1,2]. Here we have demonstrated a new approach for the fabrication of highly sensitive, wider range and stable glucose biosensor. Ag NCs synthesized through green procedure according to Scheme. 1 [2].The noble-metal clusters offer new fascinating opportunities in the development of fluorescent probes [3]. In this study Ag-DHLA-AgNC glucose sensing probe characterizations are shown in Fig. 1.