SSS 2008-06-10

（单词翻译）

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute.

It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology debuted¹ in a recent issue of Nature Biotechnology. Scientists designed a mesh² of nanowires made of potassium manganese oxide³. The mesh is dried in much the same manner as cellulose is treated to make paper. Between the nanowires are tiny pores that act like capillaries⁴ to absorb liquid, again, like a paper towel. But the wires have a coating that repels⁵ water. In fact, researchers say this material can be left in water for a month and, when taken out, will still be dry. But oil can seep⁶ into those pores. The nanopaper can absorb twenty times its weight in oil. And it can be reused. Potassium manganese oxide is stable at high temperatures. So to clean it, researchers heat it above the boiling point of oil. The oil evaporates and the paper is clean again. About 200,000 tons of oil have polluted waters around the world in this decade alone. Scientists say this new nano oil cleaner could help sop⁷ up inevitable⁸ future spills.

Thanks for the minute for Scientific American's 60-Second Science, I am Cynthia Graber.