Podcast Cover

[The Sticky Science of Nature: How Slug Slime Inspired Medical Breakthroughs]-[Stick It Right Here, Sluggo!]

Wow in the World · B1 · 2017-08-17

Preschool Enlightenment
Or study on the web version

📋 Summary

The Quest for the Perfect Adhesive

In this episode of Wow in the World, hosts Mindy and Guy Raz embark on a whimsical journey sparked by a clumsy accident. After Mindy accidentally destroys Guy Raz’s "sugar-free jello" sculpture of the Leaning Tower of Pisa, the duo finds themselves searching for a legendary, high-performance glue. Mindy insists that standard adhesives are insufficient for such a "slippery or jiggly" material, leading them to seek out the "dusky Arion slug" in the forests of Europe.

Nature’s Secret Weapon: The Dusky Arion Slug

Upon arriving in the Black Forest of Germany, the hosts use a shrink ray to encounter the Dusky Arion slug. They discover that this creature possesses a unique defense mechanism: when scared, it releases a powerful, stretchy, and incredibly sticky mucus. Mindy describes this substance as the "uniter of all things unfastened." By collecting this slime, they successfully demonstrate that it can bond even the most difficult, wet surfaces—a feat that traditional glues, which typically require "dry surfaces," cannot achieve.

From Forest Slime to Medical Innovation

The narrative shifts from comedy to genuine scientific inquiry as Mindy recounts the work of Dr. Jianyu Li and his team at Harvard’s Wyss Institute for Biologically Inspired Engineering. The researchers were tasked with solving a major "medical-surgical" dilemma: the lack of an adhesive capable of repairing human internal organs. During surgeries, surgeons often face "slimy, slippery" tissues like the heart or lungs, which are constantly moving. Traditional methods like "stitches or staples" can cause further damage, and commercial super glues are far too "rigid" and "poisonous" for internal use.

A Bio-Inspired Future

Inspired by the properties of slug slime, scientists engineered a new "sticky gummy gel glue." This material mimics the slug’s natural mucus, offering a solution that is:

  • Flexible: It can withstand the "heart-pumping action" of organs without breaking.
  • Biocompatible: Unlike super glue, it is non-toxic to human tissue.
  • Effective on Wet Surfaces: It maintains its "sticking power" even when applied to blood and biological tissues.

Currently, the team has tested this adhesive on pig hearts and rat livers, with future goals including the repair of torn cartilage and healing "tiny holes in the hearts of some babies." Researchers are even developing a "biodegradable" version that would naturally disappear once the body has healed. The episode concludes with a successful repair of the jello sculpture, illustrating that nature often holds the most elegant solutions to our most complex engineering problems.

🎯Key Sentences

1
It's going to be a November to remember.
2
It's in the tip of my tongue.
3
Well, thank you if I do say so myself.
4
Let's just clean this mess up and pretend like it ever happened, okay?
5
This is going to be one wild ride.
Expand All

📝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
Expand All

📖 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.

ListenLeap Brings You Into Real Context Learning

🎨 Interesting Content
🌍 Real Materials
📱 Listen Anytime
Or study on the web version