2010/07/02 by Emilie Ringe, Jeffrey M. McMahon, Kwonnam Sohn +6 · 2 citations
Biochemistry, Genetics and Molecular Biology · Chemistry · Engineering · Materials Science · #Characterization (materials science) #Chemical physics #Chemistry #Colloidal gold #Dielectric #Gold and Silver Nanoparticles Synthesis and Applications #Localized surface plasmon #Materials science #Nanoparticle #Nanotechnology #Optoelectronics #Particle (ecology) #Particle size #Physical chemistry #Physics #Plasmon #Plasmonic and Surface Plasmon Research #Protein Interaction Studies and Fluorescence Analysis #Resonance (particle physics) #Silver nanoparticle #Substrate (aquarium) #Surface plasmon #Surface plasmon resonance
paper · doi:10.1021/jp104366r
openalex publication_date 2010/07/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/09
Localized surface plasmon resonances (LSPRs), resulting from the interaction of light with metal nanoparticles, are powerful tools for biological sensors, surface-enhanced spectroscopies, and optical devices. LSPR frequencies are strongly dependent on a nanoparticle’s structure, composition, and local dielectric environment. However, these relationships are prohibitively difficult or impossible to probe from bulk solutions due to the heterogeneity of chemically synthesized products. In this study, systematic single-particle structure−property measurements, coupled with a statistical analysis and FDTD calculations, are performed on silver and gold nanocubes. The dependencies of LSPR frequencies on nanocube size, composition, and substrate dielectric constant are determined. The results obtained represent the most quantitative measurements and analysis to date, yielding predictive rules and fundamental insights into the interactions between nanoparticles and substrates.