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In recent times,silver-silica nanoparticles were exploited in electronics,optical,catalytic,and antimicrobial studies.1-3 However,advancement of nanocomposite materials requires further simple synthesis and assembly strategies that allow their precise application.Here we report that the silver embedded silica nano-micro particles were successfully fabricated by utilizing the injection pump and ultrasonication strategy.Surface immobilization of as synthesized silver-silica nanoparticles were anchored by alkane dithiol group activated on the platinum substrate.Silver nanoparticles were produced over the surface of the silica grains in a symphonized manner.The size of the silver and silica nanoparticles was effectively controlled by the injection pump assisted precursors and catalysts flow rate.The silver ions are reduced by sodium borohydride.Conjunction of in-situ ultrasonication leads to the better dispersion of composite in solution to form relatively uniform suspension,which results in maximum exposure of each particle within the reactant solution and an overall pseudo-homogeneous reduction and nucleation within a short period of time compare to the other methods.The electrostatic repulsion (SiO2 and SiO2) and attraction (SiO2 and Ag) among the nanoparticles make the symphonized structure of the fabricated particles and the morphological images were revealed by FE-SEM and AFM.The oxygen plasma treated platinum substrate is suit for the alkane dithiol activation,on the other hand,induced a random immobilization of silver embedded silica nanoparticles.UV-visible spectroscopy and EDXA measurements confirm the formation of silver-silica composite particles.Thermal stability of the prepared particles obtained from thermal analysis evinces its higher temperature exploitations.The resultant silver embedded silica particles can be easily suspended in diverse solvents and would be useful for variety of applications.A detailed study is in progress to unraveling the underlying mechanism behind the silver-silica nanocomposite immobilized Pt substrate as solid-state sensor,diagnostic material and electrochemical substrate.