Science
High-resolution 4D printing could hide anti-counterfeit information – Professional Engineering
In (a), the printed object’s colour is clearly visible before it is compressed. After recovery, the colours are visible again. (b) shows the micron-scale object before, during and after compression (Credit: SUTD)
Shape memory polymers have been 4D-printed at sub-micron dimensions, opening up potential applications including optical anti-counterfeiting.
Researchers from the Singapore University of Technology and Design (SUTD) and collaborators developed the new technique, which is capable of high…
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