Title | Layer-by-Layer Poly(phenylene ethynylene) Films on Silica Microspheres for Enhanced Sensory Amplification |
Publication Type | Journal Article |
Year of Publication | 2005 |
Authors | Wosnick, JH, Liao, JH, Swager, TM |
Journal | Macromolecules |
Volume | 38 |
Pagination | 9287–9290 |
Date Published | nov |
ISSN | 0024-9297 |
Keywords | polyphenylene ethynylene silica microsphere polyelectrolyte thin film |
Abstract | Alternating polyelectrolyte \"layer-by-layer\" deposition was used to create emissive thin films of a weakly anionic, nonaggregating poly(phenylene ethynylene) on silica microspheres. The resulting particles are smooth and emit fluorescence solely from the outside polymer-coated surface. Suspensions of the coated microspheres show similar fluorescence properties to polymers in soln., but with enhanced sensitivity (up to 200-fold) to nitroarom. quenchers. These enhancements are attributed to a combination of surface and electronic effects. [on SciFinder(R)] |
URL | http://pubs.acs.org/doi/abs/10.1021/ma051182q |
DOI | 10.1021/ma051182q |