SERS-active nanocellulose substrate via in-situ photochemical synthesis

Jingjing Wu; Jianfeng Xi; Haibo Chen; Yishan Liu; Lei Zhang; Peng Li; Weibing Wu

doi:10.1016/j.ijbiomac.2022.06.036

SERS-active nanocellulose substrate via in-situ photochemical synthesis

Int J Biol Macromol. 2022 Aug 31:215:368-376. doi: 10.1016/j.ijbiomac.2022.06.036. Epub 2022 Jun 9.

Authors

Jingjing Wu¹, Jianfeng Xi², Haibo Chen³, Yishan Liu⁴, Lei Zhang⁵, Peng Li³, Weibing Wu⁶

Affiliations

¹ Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Research and Evaluation of Bamboo Fiber Printing and Packaging Materials China National Light Industry, Sichuan Province Engineering Technology Research Center of Bamboo Pulping and Papermaking, Sichuan Technology & Business College, Sichuan 611830, China.
² Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
³ School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China.
⁴ Key Laboratory of Research and Evaluation of Bamboo Fiber Printing and Packaging Materials China National Light Industry, Sichuan Province Engineering Technology Research Center of Bamboo Pulping and Papermaking, Sichuan Technology & Business College, Sichuan 611830, China.
⁵ Key Laboratory for Organic Electronics and Information, National Jiangsu Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China. Electronic address: iamlzhang@njupt.edu.cn.
⁶ Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China. Electronic address: wbwu@njfu.edu.cn.

PMID: 35691436
DOI: 10.1016/j.ijbiomac.2022.06.036

Abstract

Surface-enhanced Raman scattering spectroscopy (SERS) is a highly-sensitive technology to detect trace target analytes. Herein, a series of flexible SERS substrate for the detection of malachite green (MG) bactericide were developed via in situ photochemical synthesis of silver nanoparticles (AgNPs) based on two dimentional (2D) nanocellulose film without additional reducing agent. For the first time, silver nanocubes (AgNCs) with sharp edges and corners, which are conductive to the formation of hot spots, were successfully prepared and uniformly loaded on the nanocellulose film by controlling the reaction conditions. The obtained composite SERS substrate showed high sensitivity to Rhodamine 6G (R6G) and MG with limit of detection (LOD) of 4.7 × 10^-12 and 1.2 × 10^-8 g/L, respectively. In addition, the relative standard deviation (RSD) was calculated lower than 15 %, demonstrating the good detection reproducibility. The nanocellulose-based 2D SERS substrate shows the potential as a detection platform in the rapid and sensitive identification of various toxic and harmful pollutants.

Keywords: Nanocellulose; Photochemical method; Surface-enhanced Raman scattering.

MeSH terms

Limit of Detection
Metal Nanoparticles* / chemistry
Reproducibility of Results
Silver* / chemistry
Spectrum Analysis, Raman / methods

Substances

Silver