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Raman Spectroscopy: Overview

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The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...

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Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

Published on: March 20, 2015

Plasmonic substrates for surface enhanced Raman scattering.

Wenbing Li¹, Xinchu Zhao¹, Zhifeng Yi¹

¹Deakin University, Institute of Frontier Materials, Locked Bag 20000, Geelong, Victoria 3220, Australia.

Analytica Chimica Acta

|August 28, 2017

Summary

This summary is machine-generated.

Surface-enhanced Raman scattering (SERS) offers ultrasensitive detection for diverse applications, from food safety to forensics. This review covers plasmonic substrates and their fabrication for enhanced SERS performance.

Keywords:

Analytical spectroscopy Nanofabrication Plasmonics Surface-enhanced Raman scattering

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Area of Science:

Analytical Chemistry
Materials Science
Spectroscopy

Background:

Surface-enhanced Raman scattering (SERS) is a powerful analytical technique.
SERS has wide-ranging applications including food safety, biomedicine, environmental monitoring, and forensics.
The development of effective plasmonic substrates is crucial for SERS sensitivity.

Purpose of the Study:

To review the main types of plasmonic substrates used for SERS.
To discuss fabrication methods for these substrates.
To present design principles for creating ultrasensitive SERS substrates.

Main Methods:

Review of existing literature on plasmonic substrates and SERS.
Categorization of SERS substrates into solid-state and colloidal types.
Analysis of fabrication techniques and design considerations for SERS substrates.

Main Results:

Identified key plasmonic substrate types: solid substrates with metallic nanostructures and noble metal colloids.
Detailed various fabrication methods for SERS substrates.
Outlined design principles for achieving high sensitivity in SERS.

Conclusions:

SERS substrates are critical for the technique's ultrasensitive detection capabilities.
The review highlights the potential of SERS in numerous practical applications.
SERS is a rapidly advancing field with significant future prospects.