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Caption: This unique hourglass shape effectively separates molecules based on their shape. Separation is more efficient, requiring less energy. Applications include water and gas purification. The study, by Dr. Ho Bum Park and colleagues at Hanyang University in Seoul, Korea, was titled "Polymers with Cavities Tuned for Fast Selective Transport of Small Molecules and Ions."
Credit: Image courtesy of CSIRO-Commonwealth Scientific and Industrial Research Organization
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