Polymeric sensors containing P-dimethylaminocinnamaldehyde: Colorimetric detection of urea nitrate

Konda Reddy Kunduru, Arijit Basu, Ester Abtew, Tsadok Tsach, Abraham J. Domb

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Identifying urea nitrate (UN) in post-blast debris is difficult, since it readily decomposes under high temperature. The authors developed onsite, rapid, and accurate detection of UN, using p-dimethylaminocinnamaldehyde (p-DMAC) dispersed in poly(acrylamide) hydrogels. These hydrogels change color (yellow to red) upon exposure to UN in a concentration as low as 2 ppm. The p-DMAC-hydrogel system is sensitive to both UN solid and solution. This method can be easily applied for onsite detection of UN.

Original languageEnglish
Pages (from-to)387-391
Number of pages5
JournalSensors and Actuators, B: Chemical
StatePublished - 1 Jan 2017
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the Israel Police and the U.S. Department of Homeland Security Science and Technology Directorate . The Golda Meir Fellowship Fund is acknowledged for providing a post-doctoral fellowship to Konda Reddy Kunduru. Arijit Basu acknowledges the Planning and Budgetary Commission of Israel for providing a post-doctoral fellowship.

Publisher Copyright:
© 2016 Elsevier B.V.


  • Hydrogels
  • Urea nitrate
  • Visual detection
  • p-Dimethylaminocinnamaldehyde


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