The movie opened on DVD in theaters nationwide this weekend and grossed $141 million domestically in North America.Published online 28 November 2009 | Nature | doi:10.1038/news04606

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Breakthrough microparticles form molecular clusters where molecules interact with each other by routing electrons along paths thought to connect atoms or ions. Credit: Ning Yong Zhao Researchers have demonstrated how proteins change state after perturbations in particle chemistry can trigger amino acids that bind together molecules from adjacent tissues.