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Surface‐enhanced Raman scattering (SERS) of nucleic acid components in silver sol: Adenine series
Author(s) -
Kim Sang Kyu,
Joo Tai Ha,
Suh Se Won,
Kim Myung Soo
Publication year - 1986
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250170503
Subject(s) - raman scattering , chemistry , raman spectroscopy , deoxyadenosine , aqueous solution , nucleic acid , pyridine , adenosine , surface plasmon resonance , analytical chemistry (journal) , photochemistry , materials science , nanotechnology , organic chemistry , biochemistry , optics , physics , nanoparticle
Surface‐enhanced Raman scattering (SERS) of adenine, adenosine, 2′‐deoxyadenosine, 5′‐dAMP, 5′‐rAMP, 5′‐rADP and 5′‐rATP adsorbed on aqueous Ag sol has been investigated. A shift of the adenine ring breathing mode from 746 to 735 cm −1 with increasing adenine concentration is interpreted as reflecting the reorientation of adenine on the Ag surface. Such a shift is not observed for adenosine, 2′‐deoxyadenosine and 5′‐dAMP. SERS spectra of 5′‐rAMP, 5′‐rADP and 5′‐rATP can be obtained either at neutral pH in the presence of pyridine or by lowering the pH of the Ag sol. The pH effect is discussed in terms of surface plasmon resonance theory.