Title :
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
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;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
