Ground and excited state communication within a ruthenium containing benzimidazole metallopolymer

Abstract

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Deactivation of the ruthenium excited state by enhanced homogeneous charge transport: Implications for electrochemiluminescent thin film sensors

“…This is primarily due to the high sensitivity, relatively high ECL efficiency and wide dynamic range afforded by transition metal based luminophores [1,4,14,15]. For bio-sensing and diagnostic applications current research strategies for ruthenium based platforms focus on optimising the ECL efficiency, i.e., photons emitted per electron passed [16,17]. Important approaches include new co-reactants and altering the electrochemical characteristics of the material itself so as to increase the charge transfer rate to produce more luminophores per unit time.…”

Insights into electrochemiluminescent enhancement through electrode surface modification

“…This pH was chosen as a near neutral pH is highly desirable for biological applications. The reaction scheme for the generation of ECL between a ruthenium containing metallopolymer and oxalic acid has been well documented [14][15][16]24 and occurs according to the reaction scheme; 5,12,19 [Ru(bpy) 2 …”

A novel “on-off” electrochemiluminescence sensor for the detection of concanavalin A based on Ag-doped g-C 3 N 4

“…Forster group had reported that the electrochemiluminescent (ECL) properties of some luminescent metal centers, including [Ru (bpy) 3 ] 2+ and [Os(bpy) 3 ] 2+ , can be significantly modulated by encapsulation within a conducting polymer composite film. The conducting polymer, such as polyaniline (PANI), polypyrrole (PPy) or benzimidazole based polymers, can dramatically improve the charge-transfer rates between the metal centers, thus increasing the ECL efficiency of the luminophore [27][28][29][30]. So far, the quenching effect of PANI on ECL signal has not been investigated and applied in ECL sensing field.…”