Surface-enhanced Raman scattering spectra of tomato epidermis on gold/ silver sol active substrate

Author

Zhang, Wei ; Chen, Zhenyi ; Chen, Na ; Hu, Ling ; Zhu, Hongfei ; Liu, Shupeng ; Guo, Qiang

Author_Institution

Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China

fYear

2011

fDate

13-16 Nov. 2011

Firstpage

1

Lastpage

6

Abstract

In this paper, tomato epidermis´ surface-enhanced Raman scattering spectra were measured on gold and silver active substrates and analyzed. Preparing and using gold sol and silver sol in similar particle diameters (about 50-60nm), three comparable Raman spectra were obtained. Silver sol and gold sol can both increase Raman scattering signal of tomato epidermis. Through the Raman spectra, silver sol has greater enhancement ability than gold sol to tomato epidermis.

Keywords

biological techniques; food safety; molecular biophysics; surface enhanced Raman scattering; Raman scattering signal; Raman spectra; gold sol; gold-silver sol active substrate; particle diameter; silver sol; surface-enhanced Raman scattering spectra; tomato epidermis; Abstracts; Chemicals; Educational institutions; Lasers; Optical scattering; Q measurement; Software measurement; SERS; active substrate; gold sol; silver sol; tomato epidermis;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition, 2011. ACP. Asia

Conference_Location

Shanghai

ISSN

2162-108X

Print_ISBN

978-0-8194-8961-6

Type

conf

DOI

10.1117/12.905618

Filename

6210920