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 Experiment Video

Updated: Jun 18, 2026

A Polyaniline-based Sensor of Nucleic Acids
07:58

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Nanotextured organic light emitting diode based chemical sensor.

Sandeep Devabhaktuni1, Shalini Prasad

  • 1Department of Electrical and Computer Engineering, Portland State University, Portland, OR-97201, USA.

Journal of Nanoscience and Nanotechnology
|November 14, 2009
PubMed
Summary

This study introduces a novel optical, label-free chemical sensor using organic light-emitting diodes (OLEDs) in a portable lab-on-a-chip format. The sensor detects aliphatic hydrocarbons like ethanol and methanol at parts-per-million levels by modulating light intensity.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

A wearable biosensing platform for continuous monitoring of inflammatory and metabolic biomarkers for real-time health tracking and personalized care.

Bioengineering & translational medicine·2026
Same author

TRACE-QUAD: A Multiplexed Electrochemical Platform for Ultrasensitive Detection of Diquat, Paraquat, Glyphosate, and Chlorpyrifos in Drinking Water.

Journal of agricultural and food chemistry·2026
Same author

Dual-cytokine profiling of inflammatory states using a rapid electroanalytical device as a point-of-care sensor platform.

Mikrochimica acta·2026
Same author

A Non-Faradaic Impedimetric Label-Free Immunosensor Integrated with PCCODE Logic for Stratified Monitoring of Post-COVID Conditions.

ACS measurement science au·2025
Same author

Development and benchtop testing of an aptamer-based sweat sensor for CRP detection.

Mikrochimica acta·2025
Same author

Duplex EIS Sensor for <i>Salmonella Typhi</i> and <i>Aflatoxin B1</i> Detection in Soil Runoff.

Biosensors·2025

Area of Science:

  • * Chemical Sensing
  • * Materials Science
  • * Nanotechnology

Background:

  • * Development of portable, label-free chemical sensors is crucial for real-time monitoring.
  • * Organic light-emitting diodes (OLEDs) offer potential for integrated sensing platforms.
  • * Nanotextured surfaces can enhance sensor sensitivity and performance.

Purpose of the Study:

  • * To design, fabricate, and develop a novel optical, label-free chemical sensor.
  • * To utilize nanotextured thin film surfaces in a stacked vertical array format functioning as OLEDs.
  • * To evaluate the sensor's performance in detecting aliphatic hydrocarbons.

Main Methods:

  • * Fabrication of OLEDs with indium tin oxide anode, aluminum cathode, TPD hole transport layer, and AlQ3 electron transport layer.

More Related Videos

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
07:44

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

Related Experiment Videos

Last Updated: Jun 18, 2026

A Polyaniline-based Sensor of Nucleic Acids
07:58

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
07:44

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

  • * Conversion of standard ITO/TPD/AlQ3/Al sandwich OLEDs into sensors by modifying the aluminum cathode surface.
  • * Evaluation of prototype sensor performance using ethanol and methanol as target analytes.

    • Main Results:

    • * The developed sensor technology demonstrated label-free chemical detection capabilities.
    • * Sensitivity was achieved in the lower parts per million (ppm) range.
    • * Specific limits of detection were 1 ppm for ethanol and 10 ppm for methanol.

    Conclusions:

    • * The designed OLED-based sensor is effective for detecting aliphatic hydrocarbons.
    • * The sensor's performance is modulated by analyte concentration, affecting turn-on voltage and light intensity.
    • * This technology presents a promising portable lab-on-a-chip solution for chemical sensing.