Wavelength and Intensity Multiplexing of Metal Nanoparticles for the Fabrication of Multicolored Micro‐ and Nanospheres

Abstract

Multicolored micro‐ and nanospheres have been successfully fabricated by a novel method that was developed to broaden the selection of colors available in the application of metal nanoparticles (NPs). The colors of the metal NPs have been systematically tuned over a wide spectral range by wavelength and intensity multiplexing of three‐colored NPs. Multicolor polystyrene micro‐ and nanospheres could be fabricated by combining the systematic color tuning of metal NPs and self‐assembly of metal NPs on the surfaces of the polymer spheres. The agglomeration of metal NPs on the surfaces of polymer spheres could be prevented by optimizing the concentration of the metal NPs and the reaction pH.

High-security-level multi-dimensional optical storage medium: nanostructured glass embedded with LiGa5O8: Mn2+ with photostimulated luminescence

“…Wavelength-and intensity multiplexing have been proposed to further increase the storage capacity of ODS media 33,57 . In the studied PSL material, wavelength multiplexing can be realized by combining different TGC species with various heat treatment times into one system ( Supplementary Fig.…”

Controllable synthesis and catalysis application of hierarchical PS/Au core–shell nanocomposites

“…The early literatures have illustrated that Au NPs on PS spheres exhibit novel optical, catalytic and optoelectronic properties and have great potential applications in many fields [34][35][36][37][38][39][40]. Furthermore, the properties of PS/ Au core-shell nanocomposites, especially, the catalytic activity, are dependent on the size and morphology of Au NPs [41,42].…”

Multifunctional nanoparticles/silica microsphere assemblies using polyglycidyl methacrylate shells as supports

“…The technique of assembling NPs onto the surface of inorganic or organic colloidal spheres allows them to retain high activity on cycling, enhances the pH and temperature stability of NPs, and enables the easy separation of NPs from the reaction medium [18,19]. Many types of NPs have been assembled on the surface of silica or polymer latex spheres by various methods, including layer-by-layer (LbL) method using oppositely charged polyelectrolytes based on direct electrostatic interactions [20][21][22][23], deposition by coordination of the metal NPs on amino-or thiol-functionalized substrates [24,25], in situ reduction of metal salts on surface of colloidal spheres [26,27], etc. [28][29][30][31].…”