Orientation of Pterin-6-Carboxylic Acid on Gold Capped Silicon Nanopillars Platforms: Surface Enhanced Raman Spectroscopy and Density Functional Theory Studies

Journal of the Brazilian Chemical Society

Rindzevicius, Tomas¹  Rozo, Ciro E.¹  Universidad Santo Tomas, Floridablanca, Colombia¹  Boisen, Anja¹  Bertel, Linda¹  Castillo, John J.¹  Ortega, Fernando Martínez¹  Mendez-Sanchez, Stelia C.¹  Universidad Industrial de Santander, Bucaramanga, Colombia¹  Universidad Industrial de Santander, Colombia¹  Technical University of Denmark, Lyngby, Denmark¹ 

关键词:  SERS;    gold nanopillar;    pterin-6-carboxylic acid;    DFT.;   

DOI  :  10.5935/0103-5053.20150352

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

The orientation of pterin-6-carboxylic acid on gold nanopillars was investigated by surface enhanced Raman spectroscopy and density functional theory methods. The experimentally vibrations from pterin-6-COOH free and attached to the Au surface display vibration features indicating chemical interaction of the pterin with the metal surface. The spectral feature evidenced that the pterin would adsorb on gold surface with a "lying down" configuration through the high intensity vibration of NH scissoring and rocking OH modes. The orientation study of pterins on gold nanopillars presented herein is believed to lead to new applications in biosensing field for detecting pterins of physiological importance.

【 授权许可】

Unknown