Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

672
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
672
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

974
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...
974
Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

833
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
833

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effects of Gamma Irradiation on the Artificial Spiking Neurons Based on NbO<sub>x</sub> Threshold Switching Memristor.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Mechanisms of dexmedetomidine-induced cerebral protection following ischemic brain injury via the brain-derived neurotrophic factor-tyrosine kinase receptor B pathway.

Neuroreport·2026
Same author

Development of a high-brightness, genetically stable fluorescent reporter system for Mycoplasma pneumoniae and its application in host-pathogen interaction studies.

Microbial pathogenesis·2026
Same author

[Mechanism of Zingiberis Rhizoma mixed and triturated with Schisandrae Chinensis Fructus for treating phlegm asthma based on UPLC-Q-Exactive Orbitrap-MS and network pharmacology combined with animal experiments].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
Same author

NeuroCardioSense (NCS): a time-aware fuzzy decision framework for multi-lead ECG classification and arrhythmia detection.

Biomedical physics & engineering express·2026
Same author

Ion Gel Modulated Channel Interface Engineering: Multidimensional Recognition of Volatile Organic Compounds in a Single CNTFET.

ACS sensors·2026

Related Experiment Video

Updated: Nov 20, 2025

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants
08:13

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

Published on: February 19, 2016

9.6K

Gas Sensor Based on Surface Enhanced Raman Scattering.

Xu-Ming Wang1, Xin Li1, Wei-Hua Liu1

  • 1Department of Microelectronics, Xi'an Jiaotong University, Xi'an 710049, China.

Materials (Basel, Switzerland)
|January 20, 2021
PubMed
Summary

This study presents a novel optical detection method using surface-enhanced Raman scattering (SERS) for identifying ethanol vapor. The developed SERS device enhances ethanol detection sensitivity and offers a promising solution for gas safety and recognition applications.

Keywords:
FDTD simulationPVP modificationethanol vaporsilver nanoparticlessurface enhanced Raman scattering

More Related Videos

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
11:44

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

Published on: March 20, 2015

20.9K
Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs
03:33

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

Published on: November 17, 2023

2.8K

Related Experiment Videos

Last Updated: Nov 20, 2025

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants
08:13

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

Published on: February 19, 2016

9.6K
Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
11:44

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

Published on: March 20, 2015

20.9K
Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs
03:33

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

Published on: November 17, 2023

2.8K

Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Spectroscopy

Background:

  • Gas detection faces challenges in safety and accurate identification.
  • Optical methods offer non-invasive detection possibilities.
  • Surface-Enhanced Raman Scattering (SERS) provides high sensitivity for molecular detection.

Purpose of the Study:

  • To develop and investigate an optical detection method for ethanol vapor using SERS.
  • To enhance the adsorption of ethanol molecules onto the SERS substrate.
  • To provide a mechanism for ethanol vapor detection and identification.

Main Methods:

  • Fabrication of a SERS device using silver nanoparticles modified with polyvinylpyrrolidone (PVP) via freeze-drying.
  • Utilizing a micro transparent cavity for controlled ethanol vapor injection (4%).
  • Acquiring Raman signals using a confocal Raman spectrometer and employing Finite Difference Time Domain (FDTD) simulations.

Main Results:

  • The PVP modification significantly improved ethanol molecule adsorption on silver nanoparticles.
  • FDTD simulations confirmed strong local electric fields across a wide spectral range for Ag nanoparticles.
  • The SERS device demonstrated effective detection and fingerprint recognition of ethanol vapor.

Conclusions:

  • The developed PVP-modified silver nanoparticle SERS device is effective for ethanol vapor detection.
  • The study elucidates the mechanism behind enhanced ethanol adsorption and SERS signal.
  • This method offers a viable approach for room-temperature, atmospheric-pressure ethanol vapor safety and identification.