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Related Experiment Video

Updated: Dec 19, 2025

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
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Highly Selective Metal-Organic Framework Textile Humidity Sensor.

Sakandar Rauf1, Mani Teja Vijjapu1, Miguel A Andrés2,3

  • 1Sensors Lab, Advanced Membranes & Porous Materials Center (AMPMC), Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.

ACS Applied Materials & Interfaces
|June 10, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a smart textile humidity sensor using a metal-organic framework (MOF) thin film. This flexible sensor demonstrates high selectivity for water vapor detection, offering a promising alternative to traditional solid-state devices.

Keywords:
Langmuir−Blodgett (LB) filmsMIL-96(Al)humidity sensorinterdigitated electrodes (IDEs)metal−organic framework (MOF)textile sensorthin film

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Area of Science:

  • Materials Science
  • Textile Engineering
  • Chemical Sensing

Background:

  • Smart textiles are gaining popularity for daily life applications, offering flexible and wearable alternatives to rigid sensors.
  • Textile-based sensors (TEX sensors) present an opportunity to integrate sensing capabilities directly into fabrics.
  • Metal-organic frameworks (MOFs) are emerging as promising materials for sensor applications due to their tunable properties.

Purpose of the Study:

  • To develop a novel smart textile sensor for humidity detection.
  • To utilize the Langmuir-Blodgett (LB) technique for depositing a MIL-96(Al) MOF thin film onto fabrics.
  • To evaluate the performance, selectivity, and stability of the fabricated TEX sensor.

Main Methods:

  • Fabrication of TEX sensors using linen and cotton textiles with interdigitated electrodes.
  • Deposition of MIL-96(Al) MOF thin film onto textiles via the Langmuir-Blodgett (LB) technique.
  • Testing sensor response, reproducibility, stability, and selectivity against water vapor and volatile organic compounds (VOCs).

Main Results:

  • The linen-based TEX sensor exhibited superior performance due to better MOF coverage.
  • The sensor demonstrated reproducible responses over multiple measurement cycles.
  • TEX sensors showed high selectivity for water vapor detection, outperforming some existing MOF-based sensors.
  • A moderate decrease in response was observed after 3 weeks of storage.

Conclusions:

  • A highly selective humidity sensor based on MIL-96(Al) MOF coated onto textiles has been successfully fabricated using the LB technique.
  • The developed TEX sensor offers a flexible, wearable, and selective solution for humidity monitoring.
  • The generic method is adaptable for detecting various gases and vapors using different textiles and coating materials.