Engineers from MIT and Singapore University of Technology and Design
(SUTD) are using light to print three-dimensional structures that
“remember” their original shapes. Even after being stretched, twisted,
and bent at extreme angles, the structures — from small coils and
multimaterial flowers, to an inch-tall replica of the Eiffel tower —
sprang back to their original forms within seconds of being heated to a
certain temperature “sweet spot.”
For
some structures, the researchers were able to print micron-scale
features as small as the diameter of a human hair — dimensions that are
at least one-tenth as big as what others have been able to achieve with
printable shape-memory materials.
Full story is available from
MIT website.
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