journal article·2022-03-25

Polydiacetylene-Na+ Nanoribbons for Naked Eye Detection of Hydrogen Chloride Gas

Sarawut Kingchok, Jintana Siriboon, Luyi Sun, Thomas A. P. Seery, Nisanart Traiphol, Rakchart Traiphol

ACS Applied Nano Materials· Volume 5· Issue 3
Publisher page

Abstract

Polydiacetylene (PDA) is a class of color-responsive materials that has been utilized in advanced sensing applications. The development of PDA as an acid sensor often requires structural modification of the headgroup, involving time-consuming synthetic processes. In this study, we have found a versatile route for achieving acid response of PDA materials via a sol–gel method. Simple mixing of sodium hydroxide and a commercial diacetylene monomer, 5,7-hexadecadiynoic acid (HDDA), in an aqueous solution leads to supramolecular assembly to form nanoribbons and consequently gelation under ambient conditions. Interestingly, solid-state sensors of poly(HDDA-Na+) fabricated from the gels exhibit a colorimetric response to hydrogen chloride (HCl) gas. The red-to-orange color transition takes place at an HCl gas concentration as low as 400 ppm. The response time at 1300 ppm of HCl gas, the lowest lethal concentration causing fatality of a human, is within 1 min. The quick response of the poly(HDDA-Na+) sensor allows visual detection of HCl gas and provides sufficient time to take safety precautions. This sol–gel process is simple, showing potential for large-scale production. Our study also offers a development path for PDA materials that expands their applications as acid sensors.
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Research context

OpenAlex topics: Polydiacetylene-based materials and applications · Antimicrobial Peptides and Activities · Ocular Surface and Contact Lens

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory of Advanced Polymers and Nanomaterials, School of Materials Science and Innovation, Faculty of Science, Mahidol University at Salaya, Phuttamonthon 4 Road, Nakhon Pathom 73170, Thailand

Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States

Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States

Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States

Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States

Laboratory of Advanced Chromic Materials, Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand

Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand

NANOTEC-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand

NANOTEC-MU Excellence Center of Intelligent Materials and Systems Nanocomposites, Nanosensor and Nanoelectronics, Faculty of Science, Mahidol University, Rama 6 Road, Ratchathewi, Bangkok 10400, Thailand

Funding

National Science and Technology Development Agency · National Nanotechnology Center · Thailand Research Fund · Mahidol University · Ministry of Higher Education, Science, Research and Innovation, Thailand

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