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Science 3 January 1997:
Vol. 275. no. 5296, pp. 31 - 0
DOI: 10.1126/science.275.5296.31
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Research News

Robert F. Service

Materials scientists have taken another step toward mimicking biological structures. They have assembled groups of lipid molecules into structures resembling cells, with an outer membrane encasing a series of vesicles. The artificial cells may boost efforts to use lipid spheres for delivering drugs to tumors and other tissues: By slowing the release of the drugs, the double membranes could lengthen the time between doses.

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