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 13, 2026

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
06:00

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization

Published on: August 27, 2021

Portable and Digital MOX Sensor Electronic Nose with Thermal Modulation: Design, Stability Analysis, and Long-Term

Víctor González1, Juan Álvaro Fernández1, Patricia Arroyo1

  • 1Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain.

Sensors (Basel, Switzerland)
|June 12, 2026
PubMed
Summary

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

Discrimination of Spanish-Style Green Olives Inoculated with Undesirable Microbiota Using E-Nose, Chemometrics and Volatile Compound Profiles.

Foods (Basel, Switzerland)·2026
Same author

MOX Sensors for Authenticity Assessment and Adulteration Detection in Extra Virgin Olive Oil (EVOO).

Sensors (Basel, Switzerland)·2026
Same author

Application of the E-Nose as a Non-Destructive Technique in the Early Detection of <i>Monilinia laxa</i> on Plum (<i>Prunus domestica</i> L.).

Sensors (Basel, Switzerland)·2025
Same author

Early Detection of <i>Monilinia laxa</i> in Yellow-Fleshed Peach Using a Non-Destructive E-Nose Approach.

Foods (Basel, Switzerland)·2025
Same author

A Versatile SAW Sensor-Based Modular and Portable Platform for a Multi-Sensor Device.

Micromachines·2025
Same author

Development of a Smartwatch with Gas and Environmental Sensors for Air Quality Monitoring.

Sensors (Basel, Switzerland)·2024

A new portable electronic nose uses digital metal oxide (MOX) sensors with programmable temperature modulation for advanced odor analysis. This robust system achieved 100% accuracy in distinguishing oils, showing great potential for real-world applications.

Area of Science:

  • Analytical Chemistry
  • Sensor Technology
  • Materials Science

Background:

  • Traditional electronic noses often use fixed-temperature sensors, limiting their ability to capture complex odor profiles.
  • Metal oxide (MOX) gas sensors offer sensitivity but require optimization for stability and repeatability.

Purpose of the Study:

  • To develop and validate a portable electronic nose system utilizing digital MOX sensors with programmable temperature modulation.
  • To assess the long-term stability, repeatability, and pattern-recognition capabilities of the developed electronic nose.
  • To demonstrate the system's effectiveness in discriminating between different types of oils.

Main Methods:

  • Integration of four digital MOX sensors with programmable temperature modulation for generating temperature-dependent odor fingerprints.
Keywords:
chemometricsdigital MOX gas sensorsmachine learningtemperature-modulated electronic nose

More Related Videos

Fabrication and Testing of Photonic Thermometers
08:44

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics
04:09

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Published on: August 30, 2024

Related Experiment Videos

Last Updated: Jun 13, 2026

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
06:00

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization

Published on: August 27, 2021

Fabrication and Testing of Photonic Thermometers
08:44

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics
04:09

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Published on: August 30, 2024

  • Assessment of sensor performance including stability, repeatability (using Root Mean Squared Error - RMSE), and pattern recognition.
  • Application of Principal Component Analysis (PCA) for signal processing and k-Nearest Neighbors (KNNs) and Multilayer Perceptrons (MLPs) for classification.
  • Proof-of-concept study involving the discrimination of Extra Virgin Olive Oil and pomace oil.

    • Main Results:

    • The electronic nose demonstrated stable responses over one month of measurements, indicating high repeatability.
    • Temperature-modulated signals, processed by PCA and classified using KNNs/MLPs, achieved 100% accuracy in oil discrimination after selecting the most repeatable sensor.
    • The system proved robust and capable of complex odor analysis, outperforming conventional fixed-temperature operation.

    Conclusions:

    • Temperature-modulated digital MOX sensors offer significant analytical potential and robustness for electronic nose applications.
    • A compact, highly reproducible electronic nose platform suitable for complex odor analysis in real-world scenarios has been successfully demonstrated.
    • The developed system shows promise for quality control and authentication in food and other industries.