Abstract
Gold nanorods (AuNRs/GNR) have unique, controllable and anisotropic local surface plasmon resonance (SPR) properties, which have been widely used in biochemistry, electronics and catalysis. It is of great value and significance to study the synthesis, properties, surface modification and structural regulation of AuNRs. This paper introduces AuNRs and AuNRs@SiO2. The synthesis of AuNRs@SiO2 composite nanomaterials with quantum dots, graphene, rare earth materials and magnetic materials is described. The applications of nanocomposites in optics, biomedicine and biosensors are also discussed. The future development of nanocomposites is proposed.
Highlights
This, in recent years, nanotechnology has rapidly developed due to its unique characteristics and range of applications
The experimental results showed that using local surface plasmon resonance for energy conversion, photons in the visible and near infrared bands of sunlight were converted into heat and hot electrons, driving the degradation of organic micro pollutants through the advanced oxidation of persulfate
The interest in Au nanocomposites continues to rise as does their application in biomedical fields
Summary
This, in recent years, nanotechnology has rapidly developed due to its unique characteristics and range of applications. Nanoparticles (NPs) typically smaller than 100 nanometers in size have been widely used in various products and fields, including environmental, energy, consumer goods, medicine, and life science applications. The deposition of silica on inorganic nanoparticles is of significance as SiO2 and subsequent surface functionalized silane chemistry are well established and show high biocompatibility. In 1968, the development of the Stöber method inspired 50 years of research on the synthesis, operation, and application of SiO2 NPs [4]. Stöber method to synthesize submicron mesoporous silica of with a variable pore size. SiO2 shells can improve the stability of GNRs and impart protection from degradation in harsh thermal and chemical environments, improving the biocompatibility of GNR by providing a barrier between cationic surfactants and the environment [8]. This paper reviews the progress, properties and applications of AuNRs@SiO2 nanocomposites
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