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[The following is an exact transcript of this podcast.]
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 debuted in a recent issue of Nature Biotechnology. Scientists designed a mesh of nanowires made of potassium manganese oxide. 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 capillaries to absorb liquid—again, like a paper towel.
But the wires have a coating that repels 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 seep 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 sop up inevitable future spills.
—Cynthia Graber
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2 Comments
Add CommentThis is really fascinating the ever growing wonderful world of nano particles.
Reply | Report Abuse | Link to thisFirst, a two nanometers gold particle to block the spread of HIV, then the reusable nano mesh to clear oil spills.
Lets hope that mankind will benefit more from nano technology.
This nano-technology is absolutely intriguing, spreading its wings far and wide. Already the technology has found its application in the electronic industry, now it is creeping more and more into medical science and even oil spillage cleaning.
Reply | Report Abuse | Link to thisThe world of tomorrow is going to be the exciting, exhilarating and ever expanding nano-world. Just be cautious that the technology is not used to control human minds indiscriminately by some unscrupulous power-crazy yet insane people.