 These developments could lead to foods that help prevent diseases and brittle bones, "smart" materials that can adjust performance on their own, microorganisms that produce biodegradable products and innovative materials for personal protection.On the morning of January 24, 2007, President George W. Bush became the first president to visit the Experimental Station.He saw examples of how DuPont is putting science to work to provide products for agricultural energy crops, feedstock processing and advanced biofuels such as ethanol and bio-butanol.