Electrogenerated trisbipyridyl Ru(II)-/nitrilotriacetic-polypyrene copolymer for the easy fabrication of label-free photoelectrochemical immunosensor and aptasensor: Application to the determination of thrombin and anti-cholera toxinantibody

Electrochemical, Electrochemiluminescence, and Photoelectrochemical Aptamer-Based Nanostructured Sensors for Biomarker Analysis

“…In the label-free format, the biorecognition event would break the original balance and influence the photocurrent. For instance, the analyte is oxidized by the photogenerated holes and the recombination of photogenerated electrons and holes is inhibited [ 119 ]; moreover, the biorecognition event hinders the diffusion of the sacrificial electron donor, inducing a photocurrent decrease [ 120 ].…”

Electrochemical Biosensors for miRNA Detection

“…Despite the advantages mentioned above, only rather limited photoelectrochemical biosensors have been reported for nucleic acid determination in the past decade. The emergence of nanomaterials with enhanced photoelectrochemical properties (Derry et al 2013;Chuang et al 2014;Mettenb€ orger et al 2014;Shon et al 2014) shows great potential in the field of photoelectrochemical biosensors (Wang et al 2012;Wenjuan et al 2013;Liu et al 2014c;Zhang et al 2014b).…”

Editorial of Special Issue Ruthenium Complex: The Expanding Chemistry of the Ruthenium Complexes

“…Elaborated bifunctional copolymers electrogenerated from pyrenebutyric acid, N α′, N α-bis(carboxymethyl)- l -lysine amide (NTA–pyrene) and, as a third component, the [tris-(2,2′-bipyridine)(4,4′-bis(4-pyrenyl-1-ylbutyloxy)-2,2′-bipyridine] ruthenium(II) hexafluorophosphate complex (Ru(II)–pyrene) allowed bioreceptor immobilization and transduction of biorecognition events. Such label-free photoelectrochemical immunosensors and aptasensors were applied to the determination of thrombin and the anti-cholera toxin antibody [316].…”