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Clemson scientists shed light on molecules in living cells
Date:8/20/2007

plastic. While initial efforts at preparing nanoparticles out of conjugated polymers resulted in particles that were very bright, their brightness quickly faded under the bright glare of a laser beam.

When a conjugated polymer is in a high energy state, it is vulnerable to attack by oxygen, says principal investigator and chemist Jason McNeill. The dye efficiently removes the energy from the molecule and re-emits the energy as light, which greatly improves the brightness and longevity of the nanoparticles.

McNeill says other possible targets of investigation include the formation of plaques and fibrils in the brain associated with Alzheimer's disease and mad cow disease. Graduate students Changfeng Wu, Craig Szymanski, Jennifer Grimland and Yueli Zheng contributed to the study, which the National Science Foundation funded.

Clemson University chemists are presenting 40 papers on a wide range of subjects at the society meeting. Other topics include detection and quantification of uranium in groundwater, conversion of lipid feedstocks such as poultry fat to biodiesel and a new mechanism for antioxidants that fight DNA damage.


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Contact: Susan Polowczuk
spolowc@clemson.edu
864-656-2063
Clemson University
Source:Eurekalert

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