Ratiometric fluorescent sensor for 2,4,6-trinitrotoluene designed based on energy transfer between size-different quantum dots

Tomohiro Shiraki, Youichi Tsuchiya, Seiji Shinkai

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11 Citations (Scopus)


Aggregation of two different sizes of semiconductor quantum dots is successfully applied to a novel ratiometric fluorescent sensor, in which Förster type energy transfer between quantum dots is induced by the interaction with 2,4,6-trinitrotoluene (TNT) as a binder of quantum dots. The detection limit for TNT achieved is 5 pM, and the system shows relatively high sensitivity against TNT in comparison to 2,4-dinitrotoluene and 2-nitrotoluene at 5 pM500nM range.

Original languageEnglish
Pages (from-to)156-158
Number of pages3
JournalChemistry Letters
Issue number3
Publication statusPublished - Mar 1 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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