Surface-enhanced fluorescence of fluorescein-labeled oligonucleotides capped on silver nanoparticles

Article Abstract:

Tiopronin monolayer-protected silver nanoparticles with different core sizes were prepared by using different mole ratios of silver nitrate/tiopronin. Ligands on the silver particles were partially displaced by fluorescein-labeled single-stranded oligonucleotides or their complementary unlabeled oligonucleotides through ligand exchange and the fluorophores on silver particles showed a surface-enhanced fluorescence dependent on the size of metallic cores.

Science & research, Biological Product (except Diagnostic) Manufacturing, Nucleic Acid Derivatives, Research, Nucleotides, Silver compounds, Chemical properties, Nanoparticles

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Effects of sample thickness on the optical properties of surface plasmon-coupled emission

Article Abstract:

The spectral and spatial properties of surface plasmon-coupled emission (SPCE) in polyvinyl alcohol (PVA) films of various thicknesses are described. It is concluded that in thin PVA films, SPCE occurs at a single angle in the glass substrate.

Plastics Material and Resin Manufacturing, Plastics materials and resins, Polyvinyl Alcohol, Methods, Plasmons (Physics), Spatial analysis (Statistics), Atomic properties

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