Highly fluorescent bipyridazines for acid detector

Jaekwon Do, Yuna Kim, Jungmok Yoo, Eunkyoung Kim, Andre Jean Attias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


A bipyridazine fluorophore, DHP2, was explored as a pH sensor. A solution of bipyridazine showed fluorescence intensity decrease as acid was added to the solution. The fluorescence intensity of the solution containing DHP2 was highly sensitive to acidic solution in the range from 2 to 9.7, with a Stern-Volmer quenching constant of K′acid as 9.7. However, the fluorescence intensity of DHP2 dissolved solution was not significantly changed by the addition of base. DHP2 was successfully doped in a transparent polymer to afford a thin film sensor. The fluorescent polymer film sensor was able to detect pH in the range from 3 to 12.

Original languageEnglish
Title of host publicationOrganic-based Chemical and Biological Sensors
Publication statusPublished - 2007
EventOrganic-based Chemical and Biological Sensors - San Diego, CA, United States
Duration: 2007 Aug 282007 Aug 28

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherOrganic-based Chemical and Biological Sensors
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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