TY - JOUR
T1 - Co-reactant-on-Demand ECL
T2 - Electrogenerated Chemiluminescence by the in Situ Production of S2O82- at Boron-Doped Diamond Electrodes
AU - Irkham,
AU - Watanabe, Takeshi
AU - Fiorani, Andrea
AU - Valenti, Giovanni
AU - Paolucci, Francesco
AU - Einaga, Yasuaki
N1 - Funding Information:
We thank the University of Bologna, Italian Ministero dell'Istruzione, Università e Ricerca (MIUR-project PRIN 2010), and FARB, Fondazione Cassa di Risparmio in Bologna. Irkham acknowledges INPEX SCHOLARSHIP FOUNDATION.
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/12/7
Y1 - 2016/12/7
N2 - A novel co-reactant-free electrogenerated chemiluminescence (ECL) system is developed where Ru(bpy)32+ emission is obtained on boron-doped diamond (BDD) electrodes. The method exploits the unique ability of BDD to operate at very high oxidation potential in aqueous solutions and to promote the conversion of inert SO42- into the reactive co-reactant S2O82-. This novel procedure is rather straightforward, not requiring any particular electrode geometry, and since the co-reactant is only generated in situ, the interference with biological samples is minimized. The underlying mechanism is similar to that of the Ru(bpy)32+/S2O82- system; however, the intensity of the emitted signal increases linearly with [SO42-] up to ∼0.6 M, with possible implications for analytical uses of the proposed procedure.
AB - A novel co-reactant-free electrogenerated chemiluminescence (ECL) system is developed where Ru(bpy)32+ emission is obtained on boron-doped diamond (BDD) electrodes. The method exploits the unique ability of BDD to operate at very high oxidation potential in aqueous solutions and to promote the conversion of inert SO42- into the reactive co-reactant S2O82-. This novel procedure is rather straightforward, not requiring any particular electrode geometry, and since the co-reactant is only generated in situ, the interference with biological samples is minimized. The underlying mechanism is similar to that of the Ru(bpy)32+/S2O82- system; however, the intensity of the emitted signal increases linearly with [SO42-] up to ∼0.6 M, with possible implications for analytical uses of the proposed procedure.
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U2 - 10.1021/jacs.6b09020
DO - 10.1021/jacs.6b09020
M3 - Article
AN - SCOPUS:85003671358
SN - 0002-7863
VL - 138
SP - 15636
EP - 15641
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 48
ER -