Biotinylated Thiophene Copolymer. A Novel Biomaterial for LB Film Assembly

摘要

The coupling of a photodynamic protein to an electroactive polymer may beemployed in opto-electronic signal transduction for optical displays, color mimicking and biosensor applications. We have synthesized a novel biomaterial, biotin-LC-hydrazide substituted poly(3-undecylthio phene-co-3-thienylcarboxaldehyde) B-PUAT, which is capable of incorporating any biotinylated molecule through a bridging streptavidin protein. A long spacer group between the conjugated polymer backbone and the biotin side group improves monolayer formation at the air-water surface and enhances the material's ability to bind protein. The LB technique has been employed to couple this biomaterial and