A multinational team of researchers has developed a polymer film which features pores that can change shapes and sizes. Porous polymer membranes currently have a wide variety of applications, including portable electronics, as we reported here back in November. This new film can change the shape of its pores through UV light. In the experiment, the researchers were able to use UV light to change round pores into other shapes, such as rectangles. Even after repeated tests, the pores were still able to switch shapes back into their original configurations. This technology has the potential to be used in new electronics and purification and filtration systems in the future.
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