Surface-enhanced Raman spectroscopic detection of CO2-(3), SO2-(3), and nucleic acid bases using polyvinyl alcohol film doped with Ag fine particles.
Surface-enhanced Raman scattering (SERS)-active polyvinyl alcohol films doped with Ag particles have been prepared by a counterdiffusion method. SERS spectra of CO2-(3), SO2-(3), and DNA bases have been observed by using the films. The films containing aggregated Ag particles are useful to observe SERS spectra of adsorbates. DNA bases (cytosine, uracil, thymine, guanine, and adenine) can be detected at a level of 10(-8)-10(-9) M by this method.
Kurokawa
Y
Y
Department of Science Engineering, Faculty of Engineering, Tohoku University, Sendai, Japan.
Imai
Y
Y
Sasaki
Y
Y
Maeda
T
T
D000225:Adenine / Q000032:analysis; D002254:Carbonates / Q000032:analysis*; D003596:Cytosine / Q000032:analysis; D004247:DNA / Q000032:analysis*; D006147:Guanine / Q000032:analysis; D008567:Membranes, Artificial; D010316:Particle Size; D011142:Polyvinyl Alcohol; D012542:Scattering, Radiation; D012834:Silver; D013059:Spectrum Analysis, Raman / Q000379:methods; D013447:Sulfites / Q000032:analysis*; D013499:Surface Properties; D013941:Thymine / Q000032:analysis; D014498:Uracil / Q000032:analysis
D002254:Carbonates; D008567:Membranes, Artificial; D013447:Sulfites; D012834:Silver; D014498:Uracil; D006147:Guanine; D003596:Cytosine; D011142:Polyvinyl Alcohol; D004247:DNA; D000225:Adenine; D013941:Thymine