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Related Experiment Video

Updated: Jun 12, 2026

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
07:13

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

Published on: November 15, 2016

Silver nanoparticle polymer composite based humidity sensor.

Aoife C Power1, Anthony J Betts, John F Cassidy

  • 1School of Chemical and Pharmaceutical Sciences, Dublin Institute of Technology, Kevin St, Dublin, 8, Ireland. aoife.power@dit.ie

The Analyst
|June 2, 2010
PubMed
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Researchers developed a novel silver nanoparticle sensor for precise humidity detection. This sensor offers a rapid, reversible, and selective response proportional to humidity levels, correlating with Langmuir adsorption models.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Development of advanced sensor technologies is crucial for environmental monitoring.
  • Nanomaterials offer unique properties for enhanced sensor performance.
  • Humidity sensors are vital in various industrial and environmental applications.

Purpose of the Study:

  • To synthesize and characterize silver nanoparticles (AgNPs).
  • To develop a novel Ag/polymer nanocomposite-based humidity sensor.
  • To investigate the sensor's performance and response mechanism.

Main Methods:

  • Chemical reduction for AgNP synthesis.
  • Characterization using UV-Vis spectroscopy, dynamic light scattering, X-ray diffraction, and transmission electron microscopy.

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Last Updated: Jun 12, 2026

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
07:13

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

Published on: November 15, 2016

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device
05:32

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

Published on: November 24, 2016

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06:34

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Published on: September 19, 2020

  • Fabrication of a sensor by coating platinum interdigital electrodes with Ag/polymer nanocomposites.

    • Main Results:

    • Synthesized AgNPs with an average diameter of 20-22 nm.
    • Developed a humidity sensor exhibiting a direct current-humidity proportionality at 1 V.
    • Observed a reversible, selective, and rapid sensor response within the 10%-60% relative humidity (RH) range.
    • Correlated sensor response with a second-order Langmuir adsorption model.

    Conclusions:

    • The Ag/polymer nanocomposite sensor demonstrates effective humidity detection capabilities.
    • The sensor's performance is characterized by linearity, reversibility, selectivity, and rapid response.
    • The Langmuir adsorption model provides insight into the sensor's operational mechanism.