Our paper "Molecular mechanism of pancreatic tumor metastasis inhibition by Gd@C82(OH)22 and its implication for de novo design of nanomedicine"that originally appeared in PNAS in 2012, 109(38): 15431-15436 has been highlighted in this issue of PNAS (p15073–15528) and EMSL  (http://www.emsl.pnnl.gov/news/viewArticle.jsp?articleId=416).