Building Addressable Libraries: Site Selective Coumarin Synthesis and the “Real-Time” Signaling of Antibody−Coumarin Binding
作者:Eden Tesfu、Kris Roth、Karl Maurer、Kevin D. Moeller
DOI:10.1021/ol052891r
日期:2006.2.1
The feasibility of using active semiconductor chips containing addressable arrays of microelectrodes for the "real-time" monitoring of biologically relevant binding events has been demonstrated by detecting the binding of a coumarin substrate by an anticoumarin antibody. The coumarin substrate was synthesized proximal to predetermined electrodes on the chip with the use of a Pd(II) reagent that was itself generated by using the selected electrodes. Once the coumarin was synthesized, its binding to the anticoumarin antibody was detected by monitoring the current associated with a ferrocene-ferrocinium ion redox cycle that was established between the electrodes on the chip and a remote auxiliary electrode.