Colorimetric polydiacetylene-aerogel detector for volatile organic compounds (VOCs)

Susmita Dolai, Susanta Kumar Bhunia, Stella S. Beglaryan, Sofiya Kolusheva, Leila Zeiri, Raz Jelinek

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

A new hybrid system comprising polydiacetylene (PDA), a chromatic conjugated polymer, embedded within aerogel pores has been constructed. The PDA-aerogel powder underwent dramatic color changes in the presence of volatile organic compounds (VOCs), facilitated through infiltration of the gas molecules into the highly porous aerogel matrix and their interactions with the aerogel-embedded PDA units. The PDA-aerogel composite exhibited rapid color/ fluorescence response and enhanced signals upon exposure to low VOC concentrations. Encapsulation of PDA derivatives displaying different headgroups within the aerogel produced distinct VOC-dependent color transformations, forming a PDA-aerogel "artificial nose".

Original languageEnglish
Pages (from-to)2891-2898
Number of pages8
JournalACS applied materials & interfaces
Volume9
Issue number3
DOIs
StatePublished - 25 Jan 2017

Keywords

  • Aerogel
  • Colorimetric sensors
  • Nanoporous materials
  • Polydiacetylene
  • Volatile organic compounds

ASJC Scopus subject areas

  • Materials Science (all)

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