| Silver nanoprisms have significantly anisotropy, strong surface plasmonresonance and the as-prepared Ag nanoprisms are single crystalline withfacet-centered cubic lattice structures, which have facial peculiarity. Thepaper is divided into four chapters, as the following:The first chapter is the introduction, which firstly reviews the propertiesof anisotropy nanoparticles, especially the properties, synthetic methods,and applications of silver nanoprisms. Then, the work envisagements areproposed based on the outstanding properties of silver nanoprisms.The second chapter is based on uric acid (UA) preferentially binds toside (110) facets of the silver nanoprisms. We propose a “facet dependentbinding and etching†strategy for non-enzymatic and non-aggregatedcolorimetric sensing of blood UA with unmodified silver nanoprisms as thesignal readout.The third chapter describes a surface plasmon resonance enhancedfluorescence system based on silver nanoprisms in aqueous solution.Theemission of carbon quantum dots can be well enhanced whether the silivernanoprisms are coated with the silica shell. After assembly with silvernanoprisms, the fluorescence of CDs can be enhanced more than10times,and the surface enhanced fluorescence can reach5~8times by silvernanoprisms@SiO2. We have introduced a novel method for coating thesilver nanoprisms with silica, and the morphology of the nanoprisms keepsvery well even without surface passivating reagent in the research of thedistance between silver nanoprisms and carbon dots on surface enhancedfluorescence effect. After coating, the shells have uniformity and the morphology of the silver nanoprisms kept rather well.The fourth chapter summarizes the characteristic, innovation andprospective of this research. First, we have reviewed the ultra-sensitivecolorimetric visualization of blood uric acid by unmodified silvernanoprisms, and the plasmon enhanced fluorescence based on silvernanoprisms. Then, outlook of further study is also provided. |
