120th General Meeting of the KCS

Type Oral Presentation
Area Oral Presentation of Young Analytical Chemists II
Room No. Room C308+C309
Time FRI 09:40-:
Code ANAL2.O-13
Subject High Speed Spiral Scanning Spectrometry for reliable Quantitative Analysis of Ag/GO Nanocomposite SERS substrate
Authors Si Won Song, Yejung Choi1, changhyun Bae, Chan Ryang Park2, Yuanzhe Piao3, Hyung Min Kim*
Department of Bionano Chemistry, Kookmin University, Korea
1convergence science and technology, Seoul National University, Korea
2Department of Chemistry, Kookmin University, Korea
3Graduate School of Convergence Science and Technol, Seoul National University, Korea
Abstract Surface enhanced Raman spectroscopy (SERS) is a sensitive analytical tool in which weak Raman signal are enhanced by localized surface plasmon of noble metal nanoparticles or nanocomposites. In plural recent studies, analytical capability of SERS method, such as reproducibility and uniformity, has been examined with lithographic patterns, size controlled nanoparticles, and colloidal self-assembly. For quantitative SERS measurement, it is required to overcome the interference from the homogeneity substrates and the dispersity of analyte. In this study, we developed high-speed spiral scanning spectrometry for reliable quantitative analysis using flexible SERS substrate. It is a method of measuring whole analytes dispersed on a substrate by rotating and translating a 2-D cylindrical substrate. We measured crystal violet dye on flexible Ag/GO substrate using spiral scanning method. It showed a quantitative analysis curve, high sensitivity and ultra-uniformity. In addition, flexible SERS substrates can be applied to various analytical fields.
E-mail ghki007@kookmin.ac.kr