Synthesis of sialic acid substitued PPEs for influenza sensing

ORGN 594

Bradley E. Carson, bradley.carson@chemistry.gatech.edu and Uwe H. F. Bunz, uwe.bunz@chemistry.gatech.edu. School of Chemistry and Biochemistry, Georgia Institute of Technology, 770 State Street, Boggs Chemistry Building, Atlanta, GA 30332
Our efforts have focused upon developing various carbohydrate-substituted poly(para phenyleneethynylenes) (PPEs) for rapid-response detection methods of the viral haemagglutinin of influenza. PPEs have unique sensory properties that make them ideal “field” detectors over time-consuming immunoassay techniques. The major synthetic studies have involved forming thioglycosides and thiosialates for attachment to a primary alcohol on ethylene glycol side chain linker of the PPE monomer. Ultimately, the goal of this research is to perform in-vivo sensing studies with both the free lectin in solution and cultured cells to evaluate the usefulness of the PPE as a quantitative analytical tool and as a fluorescent marker for imaging in light microscopy. Eventually, this research could lead to better detection of airborne diseases such as SARS or the bird flu.