Ag-Coated Cellulose Fibers as Surface-Enhanced Raman Scattering Substrates for Adsorptive Detection of Malachite Green

Yudong Lu; Changji Wu; Yang Wu; Ruiyun You; Gang Lin; Youqiang Chen; Shangyuan Feng

doi:10.3390/ma11071197

Ag-Coated Cellulose Fibers as Surface-Enhanced Raman Scattering Substrates for Adsorptive Detection of Malachite Green

Materials (Basel). 2018 Jul 12;11(7):1197. doi: 10.3390/ma11071197.

Authors

Yudong Lu^{1

2}, Changji Wu³, Yang Wu⁴, Ruiyun You⁵, Gang Lin⁶, Youqiang Chen⁷, Shangyuan Feng⁸

Affiliations

¹ College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350117, China. luyd@fjnu.edu.cn.
² Center of Engineering Technology Research for Microalgae Germplasm Improvement of Fujian, Southern Institute of Oceanography, Fujian Normal University, Fuzhou 350117, China. luyd@fjnu.edu.cn.
³ College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350117, China. 18060489009@163.com.
⁴ College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350117, China. 13506970317@163.com.
⁵ College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350117, China. youruiyun@fjnu.edu.cn.
⁶ Center of Engineering Technology Research for Microalgae Germplasm Improvement of Fujian, Southern Institute of Oceanography, Fujian Normal University, Fuzhou 350117, China. lgffz@fjnu.edu.cn.
⁷ Center of Engineering Technology Research for Microalgae Germplasm Improvement of Fujian, Southern Institute of Oceanography, Fujian Normal University, Fuzhou 350117, China. yqchen@fjnu.edu.cn.
⁸ Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou 350117, China. syfeng@fjnu.edu.cn.

Abstract

Surface-enhanced Raman scattering (SERS) is a sensitive technique for the detection of low concentration analytes. In this study, we used cellulose fibers (CF) as the templates for the loading of silver nanoparticles (Ag NPs), and the obtained CF-Ag was applied in the detection of R6G and Malachite Green (MG) by surface-enhanced Raman scattering. The adsorption technique was employed in the sample preparation, and the optimal detecting status was identified in the dynamic range (sample status ranging from wet to dry) for different concentration of analytes. In comparison to Ag NPs, CF-Ag showed enhanced performance for adsorptive detection of Malachite Green, and the limit of detection was 5 × 10^-12 M.

Keywords: Malachite green; cellulose; silver; surface-enhanced Raman scattering.