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Citrate appears to control buckyball clumping but environmental concerns remain
Date:4/8/2008

d fullerenes can retain solvents. Using citrate is very green chemistry, Vikesland said. There are no solvents. It is a cleaner way to produce these things. Citrate may be an alternative.

But there are challenges. Its not a hard bond but a weak attractive force, which makes these spherical aggregates challenging to work with. At the present time we dont know how they will fall apart and what their products are, Vikesland said.

In the meantime, the solvent issue aside, the current rush to put fullerenes into materials may not be wise because we dont understand what is going on, said Vikesland. If you have a face cream with fullerenes as an antioxidant we dont know how they will react. There are many organic acids in the environment.

He concludes, There are uncertainties. Everyone wants to prevent future problems.


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Contact: Susan Trulove
STrulove@vt.edu
540-231-5646
Virginia Tech
Source:Eurekalert

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