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Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

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Surface functionalization strategies for polydiacetylene-based colorimetric sensors.

Brainy Happy Ana Tasiman¹, Rizky Aflaha², Wiyogo Prio Wicaksono³

¹Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta, Indonesia. brainyhappyanatasiman@mail.ugm.ac.id.

Communications Chemistry

|January 30, 2026

Summary

Polydiacetylene (PDA) colorimetric sensors offer visual detection but face sensitivity and stability issues. This review explores functionalization strategies to enhance PDA sensor performance for broader applications.

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Area of Science:

Materials Science
Chemical Sensing
Nanotechnology

Background:

Polydiacetylene (PDA)-based sensors provide rapid, visual colorimetric detection via a blue-to-red color shift.
Current limitations in sensitivity, selectivity, and stability hinder the widespread application of PDA sensors.

Purpose of the Study:

To comprehensively review functionalization strategies for overcoming limitations in PDA-based colorimetric sensors.
To discuss alternative approaches and the interplay of material properties and deposition methods.
To identify future research directions for advanced PDA sensor development.

Main Methods:

Review of existing literature on PDA sensor functionalization.
Analysis of chemical modification, ligand conjugation, and nanomaterial integration techniques.
Discussion of factors influencing functionalization efficiency and sensor performance.

Main Results:

Functionalization strategies significantly enhance PDA sensor sensitivity, selectivity, and stability.
Integration with nanomaterials and specific ligand conjugation show particular promise.
Understanding the interplay between base materials, deposition, and functionalization is crucial.

Conclusions:

Strategic functionalization is key to unlocking the full potential of PDA colorimetric sensors.
Further research is needed to address remaining challenges and optimize sensor design.
Advanced PDA sensors hold promise for diverse applications in diagnostics and environmental monitoring.