Article
Deeply inverted electron-hole recombination in a luminescent antibody-stilbene complex.
Science (New York, N.Y.) - 29 Feb 2008
Debler Erik W, Kaufmann Gunnar F, Meijler Michael M, Heine Andreas, Mee Jenny M, Pljevaljcic Goran, Di Bilio Angel J, Schultz Peter G, Millar David P, Janda Kim D, Wilson Ian A, Gray Harry B, Lerner Richard A
Abstract excerpt
The blue-emissive antibody EP2-19G2 that has been elicited against trans-stilbene has unprecedented ability to produce bright luminescence and has been used as a biosensor in various applications. We show that the prolonged luminescence is not stilbene fluorescence. Instead, the emissive species is a charge-transfer excited complex of an anionic stilbene and a cationic, parallel pi-stacked tryptophan. Upon charge...
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