Check out http://nsf.gov/news/news_summ.jsp?cntn_id=120910&org=NSF&from=news -Ramu -- B. Ramu Ramachandran Hazel Stewart Garner Professor of Chemistry Associate Dean for Research College of Engineering& Science Louisiana Tech University Ruston, LA 71272, USA Phone: 318 257-4304 Fax: 318 257-2562 www.chem.latech.edu/~ramu