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[The Sticky Science of Nature: How Slug Slime Inspired a Surgical Breakthrough]-[Stick it Right Here, Sluggo! (Encore - 10/30/17)]

Wow in the World · B1 · 2017-10-30

Preschool Enlightenment
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📋 Summary

The Unexpected Inspiration

In this episode of Wow in the World, Mindy and Guy Raz embark on a whimsical yet educational journey triggered by a kitchen mishap. After Mindy accidentally destroys Guy Raz’s "Guinness World Record"-worthy sculpture of the Leaning Tower of Pisa made of "sugar-free jello," the duo seeks a solution to repair the "jiggly" and "slippery" wreckage. Mindy insists on finding a "new kind of glue" found in the forests of Europe, leading them to the "Dusky Arion slug."

The Biology of the Dusky Arion Slug

Upon shrinking themselves to explore the Black Forest in Germany, the hosts encounter the Dusky Arion slug. Mindy describes it as the "uniter of all things unfastened." The slug secretes a "super strong, stretchy slime" that acts as a defense mechanism against predators. This mucus is not just a repellent; it is a highly specialized adhesive capable of sticking to almost any surface, even when wet or constantly moving—a property that caught the attention of modern science.

Biologically Inspired Engineering

The narrative shifts to the work of Jianyu Li, Ph.D., and his team at Harvard’s Wyss Institute for Biologically Inspired Engineering. The researchers identified a critical challenge in medicine: surgeons often struggle to find adhesives that can effectively seal "blood and guts" during operations. Conventional options like stitches or staples can cause "even more damage," and traditional super glues are "too rigid" and "poisonous" for internal use. Furthermore, standard tapes fail to adhere to "slippery, slimy, wet surfaces" like human organs.

The Future of Surgical Glue

Inspired by the properties of the slug's slime, the scientists engineered a new "sticky gel" that mimics the slug's natural mucus. This innovative material has several groundbreaking characteristics:

  • Flexibility: It is "stretchier than even the stretchiest rubber band," allowing it to move with organs like the heart or lungs.
  • Biocompatibility: Unlike industrial super glue, this gel is designed to be safe for the human body and is currently being developed in a "biodegradable" form that disappears once the tissue has healed.
  • Adhesion: It works effectively on "slippery, wet surfaces," including bones, cartilage, and internal organs.

While the technology is still in the research phase, it has shown promise in sealing holes in pig hearts and rat livers. This episode highlights how "technology inspired by nature" can solve complex medical problems, moving from the "gross" world of slug slime to the high-stakes environment of life-saving surgery. Mindy successfully uses the concept to "fix" the jello tower, demonstrating that even the most "jiggly" messes can be mended with the right scientific inspiration.

🎯Key Sentences

1
Wait until the Guinness World Record Association finds out about this.
2
Wait, I think I've been here before.
3
I'm going to have to shrink us.
4
And that ant is looking at us like we might be his lunch.
5
I can't believe you shrunk us with that thing.
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📝Key Phrases

1
music to your ears
2
on the tip of my tongue
3
if I do say so myself
4
rope me into
5
hang on a sec
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📖 Transcript

Grownups, Wondery Plus subscribers can listen to Wow in the World early and ad-free right now.
Join Wondery Plus in the Wondery app or Wondery Kids Plus on Apple Podcasts.
Hey, Wowzer fans, Mindy here.
And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,
And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.
Oh, but that's not all, Reg.

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