Photochemically prepared gold nanoparticles: A substrate for surface enhanced Raman scattering
Gold nanoparticles have been prepared in aqueous Triton X-100 medium using a new photochemical procedure. The characterization of the particle is made using transmission electron microscopy studies. The effects of analyte molecules such as pyridine and salt such as sodium chloride on the sol are studied. The photochemically prepared gold nanoparticles has been used successfully for surface enhanced Raman scattering studies with various types of compounds.