Flexible nanocellulose-based SERS substrates for fast analysis of hazardous materials by spiral scanning

Si Won Song, Dabum Kim, Jeonghun Kim, Jungmok You, Hyung Min Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Surface-enhanced Raman scattering (SERS) has proven to be a valuable tool for assessing harmful chemicals in various substances, including water, soil, and foods. However, a fast measurement system is required for multiplexed detection to extend the range of its applications. The rotating scanning stage of the SERS substrate is considered to be a promising approach to achieving a fast measurement system. This paper reports a facile measurement system by using a flexible nanocellulose-based SERS substrate and a spiral scanning system, which rotates the cylinder sample holder and moves the stage. A flexible nanocellulose-based SERS substrate deposited with Au nanoparticles is suitable for the spiral scanning system, which requires SERS substrates to be highly flexible and durable. The well-known toxic fungicide, thiram, was tested by this system. The results revealed that the nanocellulose-based SERS substrate is well-fitted with a spiral scanning system and that the signal data from a large area substrate can be obtained within 30 s. It is noteworthy that the error of spiral scanning measurements is smaller than that of multi-spot sampling. This work provides a powerful tool for Raman spectroscopic analysis, which requires quantitative and fast testing. Furthermore, various flexible SERS substrates can be utilized in this system for toxic materials detection.

Original languageEnglish
Article number125160
JournalJournal of Hazardous Materials
Volume414
DOIs
Publication statusPublished - 2021 Jul 15

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government ( MSIP ) (No. 2017M3A7B4041987 , 2020R1C1C1004459 , 2018R1D1A1B07047874 , 2016R1A5A1012966 , 2020R1A2C2010170 ).

Publisher Copyright:
© 2021

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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