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9
Nanomaterial-Based
Electrochemiluminescence Biosensors
Rongfu Huang and Liang-Hong Guo
9.1 Introduction
Electrogenerated chemiluminescence (ECL), also called electrochemiluminescence, is
briey described as chemiluminescence (CL) produced directly or indirectly as a result
of electrochemical reactions. When an appropriate potential is applied to an electrode, an
ECL-emitting species is generated at the electrode surface and subsequently emits light
(Bard 2004; Forster et al. 2009; Hu and Xu 2010; Miao 2008). In principle, ECL not only retains
the advantages of sensitivity (low background resulting from no excitation light source)
and selec ...