Combining materials with different swelling ratios creates structures that transform into tubes when exposed to water. (Courtesy: Yu Bin Lee) Materials that controllably change shape over time – often ...
"Sheets of food transform into 3-D shapes when dunked in water." ScienceDaily. www.sciencedaily.com / releases / 2017 / 05 / 170525100233.htm (accessed April 24, 2026).
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