This "tissue" paper is made from real tissue. Made from powdered organs, the flexible paper could be used as a sophisticated bandage during surgery.
Adam Jakus of Northwestern University accidentally spilled some “ink” he’d created from powdered ovaries intended for 3-D printing. Before he could wipe up the mess, it solidified into a thin, paper-like sheet. That led to this lab-bench epiphany.
More: Smithsonian
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