12/13/2024

Accidental Breakthrough Makes Web-Slinging Silk A Reality

A liquid stream of silk solution solidifies to a fiber, adheres to and lifts a glass laboratory beaker.
A liquid stream of silk solution solidifies to a fiber, and adheres to and lifts a glass laboratory beaker. Credit: Marco Lo Presti, Tufts University

We’re all familiar with Spider-Man—the red-suited hero who swings through New York using spider silk that shoots from his hands. While Peter Parker has a radioactive spider to thank for his shooting webs, scientists at Tufts University have made their own version of liquid silk that solidifies and can pick up objects.

This discovery was made accidentally, says biomedical engineer Dr. Marco Lo Presti of the Tufts University Silklab. Lo Presti found that combining silk from a silkworm with dopamine and acetone made the silk change from a flexible liquid to a hardened fiber that attaches to objects.

Lo Presti joins guest host Kathleen Davis to talk about the possibilities of liquid silk adhesives, and the advancements he’d like to see to make the technology better.


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Segment Guests

Marco Lo Presti

Dr. Marco Lo Presti is a research assistant in Biomedical Engineering at Tufts University in Medford, Massachusetts.

Segment Transcript

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Meet the Producer

About Kathleen Davis

Kathleen Davis is a producer and fill-in host at Science Friday, which means she spends her weeks researching, writing, editing, and sometimes talking into a microphone. She’s always eager to talk about freshwater lakes and Coney Island diners.

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