In a finding that could provide controlled motion in futuristic nanomachines used for drug delivery, fuel cells, and other applications, researchers in Pennsylvania report that chemical signaling between synthetic microcapsules can trigger and direct movement of these capsules.
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Recently, the European Union has adopted some of the world's strictest policies on e-waste and potentially hazardous chemicals. Economic and environmental impacts of the new regulations will be felt far beyond Europe, says Stacy D. VanDeveer, a visiting fellow at Brown University's Watson Institute for International Studies.
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New stricter European environmental policies may force even U.S.-based electronics makers to change their ways, say policy analysts at Brown University and Boston University. Stacy D. VanDeveer, a visiting fellow at Brown University's Watson Institute for International Studies, and Henrik Selin, an assistant professor of international relations at Boston University, analyzed the controversial new policies in the December issue of the journal Environment.
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