4.6 Article

Electrochemiluminescent chemodosimetric probes for sulfide based on cyclometalated Ir(III) complexes

Journal

RSC ADVANCES
Volume 7, Issue 18, Pages 10865-10868

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra26826a

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Funding

  1. National Research Foundation - MSIP [2015R1A2A1A15055347]
  2. National Research Foundation of Korea [2015R1A2A1A15055347] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We developed two electrochemiluminescent probes (1, 2) for sulfide (S2-), based on cyclometalated Ir(III) complexes. Addition of sulfide anions greatly increased the ECL signal of probes by cleaving a PET quencher moiety from probe ligands. Probe 2 showed a high turn-on ratio of ECL and good selectivity for sulfide anions over various anions and biothiols.

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