Département de chimie moléculaire

A conductive surface was created for the development of a biosensing platform via chem. polymn. of pyrrole onto the surface of poly(Me methacrylate) (PMMA) fibers, with a subsequent electrogeneration of a photoactive linker pyrrole-benzophenone (PyBz) monomer on the fiber surface. Irradn. of the benzophenone groups embedded in the polypyrrole (Ppy) films by UV (350 nm) formed active radicals, allowing covalent attachment of the desired biomaterials. Characterization and optimization of this platform were carried out, with the platform showing conductive, stable, thin, controllable, and light-transmissible film features. Various parameters such as time deposition, process temp., and activator plus pyrrole monomer concns. were examd. in the study. The morphol. and permeability of the optic-fiber PMMA fibers were investigated to examine mass transfer ability. Cyclic voltammetry and amperometry techniques were applied to characterize the elec. features of the surface and charge transfer. The platform potential was then demonstrated by the construction of both amperometric and optical biosensors. [on SciFinder(R)]