Presentation Information
[10a-PB5-3]SERS Measurement of Polyphenol Metabolites Using Silica-Coated Silver Dendritic Structures
〇Sarasa Notsu1, Yoshimasa Nakamura1, Nobuyuki Takeyasu1 (1.Okayama Univ.)
Keywords:
Surface-Enhanced Raman Scattering (SERS),Silver Dendritic Structures,Silica Coating
Detection of the polyphenol metabolite 3-hydroxyphenylacetic acid (OPAC) was investigated using a surface-enhanced Raman scattering (SERS) substrate consisting of silver dendritic structures coated with a thin silica layer. On uncoated substrates, peaks unrelated to the analyte and broad spectral features attributed to molecular degradation and carbonization were observed under high laser power. In contrast, silica coating suppressed these unwanted signals, enabling the clear observation of multiple Raman peaks originating from OPAC.