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About the Cover

Cover Figure


COVER Artist's rendering of methane molecules flowing through a sub-2-nanometer carbon nanotube. Mass transport through carbon nanotube membranes is orders of magnitude faster than classical theories had predicted and may be useful for energy-efficient molecular separations. See page 1034. Image: Scott Dougherty


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Science. ISSN 0036-8075 (print), 1095-9203 (online)