Previous Article Next Article Table of Contents Science, Vol.338, No.6112, 1287-1287, 2012 DOI10.1126/science.338.6112.1287 Export Citation Driving the formation of molecular knots (vol 338, pg 752, 2012) Siegel JS, Liang CZ, Mislow K, Am J Please enable JavaScript to view the comments powered by Disqus.