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Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs

Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs

Published on: November 17, 2023

Highly Sensitive and Reproducible SERS Substrates Based on Ordered Micropyramid Array and Silver Nanoparticles.

Chengpeng Zhang^1,2,3, Shuai Chen^1,3, Zhaoliang Jiang^1,3

¹Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China.

ACS Applied Materials & Interfaces

|June 11, 2021

Summary

This summary is machine-generated.

A novel 3D surface-enhanced Raman scattering (SERS) substrate using micropyramid arrays and silver nanoparticles was developed. This cost-effective substrate demonstrates high sensitivity and stability for detecting molecules like rhodamine 6G and pesticide residues.

Keywords:

FDTD simulation SERS micropyramid array roll-to-plate embossing silver nanoparticles

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A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

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Published on: February 19, 2016

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Last Updated: Nov 2, 2025

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A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

Published on: February 19, 2016

Area of Science:

Materials Science
Nanotechnology
Analytical Chemistry

Background:

The practical application of surface-enhanced Raman scattering (SERS) is limited by the development of sensitive and reproducible SERS substrates.
Existing SERS substrates often face challenges in terms of cost-effectiveness and scalability for widespread use.

Purpose of the Study:

To construct a highly sensitive and reproducible three-dimensional (3D) SERS substrate.
To develop an efficient and low-cost fabrication method for SERS substrates.
To evaluate the substrate's performance for detecting probe molecules and pesticide residues.

Main Methods:

Fabrication of a 3D SERS substrate using ordered micropyramid arrays (MPA) and silver nanoparticles (AgNPs) via roll-to-plate embossing and hydrothermal methods.
Performance evaluation using rhodamine 6G (R6G) as a probe molecule to determine sensitivity and enhancement factor.
Assessment of substrate stability and repeatability over time.
Application in the detection of thiram pesticide residues.

Main Results:

Achieved a minimum detection limit of 10^-12 M for R6G with an enhancement factor of 8.8 × 10⁹, demonstrating high sensitivity.
Exhibited excellent stability and repeatability with a minimum relative standard deviation (RSD) of 4.99% and no significant performance loss after 12 days.
Successfully detected thiram pesticide residues down to 1 × 10^-7 M, enabling quantitative analysis.

Conclusions:

The developed MPA/AgNPs 3D-SERS substrate offers a highly sensitive, reproducible, and stable platform for SERS applications.
The efficient and low-cost fabrication process provides a viable route for producing advanced SERS substrates.
This research guides the development of practical SERS substrates for sensitive detection in various fields, including food safety.