Iridium(iii) complex-based electrochemiluminescent probe for H₂S

Abstract

(Azmb-ppy)2Ir(acac) showed high “turn-off” ECL response for H2S.

In Vivo Detection of Hydrogen Sulfide in Brain and Cell

“…Electrochemiluminescence (ECL) is another luminescence process in which an electrochemical reaction occurs on the surface of an electrode to form an excited state and electrons return from the excited state to the ground state to form a luminescence phenomenon [73,74]. ECL sensors [75,76] have the advantages of both electrochemical and florescence methods such as easy integration, ease of control and low background.…”

Emerging analytical tools for the detection of the third gasotransmitter H2S, a comprehensive review

“…ECL systems have been widely applied in H 2 S detection due to their simplified optical setup, superior sensitivity, and low background signal level. For example, a cyclometallic iridium(III) complex has been synthesized as luminophore with high ECL intensity during cyclic voltammetry that quenches upon reacting with H 2 S [118] . ECL signal of the system decreased linearly upon reacting with H 2 S over a concentration range 40–140 μM with an estimated LOD of 11 nM.…”

A Ruthenium(II) complex-based probe for colorimetric and luminescent detection and imaging of hydrogen sulfide in living cells and organisms

“…Towards this end, a variety of methods, such as titration, inductively coupled plasma atomic emission spectroscopy, electrochemical analysis, metal-induced sulfide precipitation, gas chromatography, and fluorometric method have been reported for H 2 S detection [22][23][24][25]. Of these methods, luminescent bioassay using responsive probes has become a promising approach for H 2 S detection in-situ in real-time due to its high sensitivity and selectivity, simplicity, rapidity, and efficiency [26][27][28].…”