Over the years, many different synthetic procedures have been developed for the synthesis of Au and Ag nanoparticles for the utilization of the so-called “Localized Surface Plasmon Polariton” (LSPR) which is the collective oscillation of the confined electron cloud within a nanostructure.<br/>These metallic nanostructures have shown promise in applications ranging from sensing, electro-optics and bio-medicine.<br/>(3-aminopropyl)triethoxysilane or “APTES” has been shown to be used as a capping agent for the synthesis of Au nanoparticles, in our work we demonstrate an impressive and improved synthetic control over the syntheses of Au and Ag nanoparticles utilizing APTES through which we produce not only surface-modifiable ultra-fine (&lt;3 nm) nearly monodisperse Au nanoparticles, but also organosilicate core@ Au decorated nanostructures, with the possibility of applying a slightly modified procedure for the synthesis of Ag nanoparticles.<br/>Additionally, due to the vitreophilic nature of the APTES capped Au nanostructures it is possible to form a SiO2@Au decorated nanostructures as easily as simply adding SiO2 nanospheres to the Au@APTES nanoparticles solution.

Siloxane assisted synthesis of Au and Ag nanoparticles and organo-silicate derivatives

ACS Spring Meeting 2021

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