The Medical Wonders of Worm Spit
Ғылым және технология
www.sciencefriday.com
From the mandibles of a creepy crawly to your body comes a revolution in biomedical engineering. It's worm spit, from the silk worm moth caterpillar, although you may know it by its more common name, silk. Dr. David Kaplan explains how bioengineers at Tufts University are crafting this versatile protein into a myriad of medical materials.
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who else only hear for Biology class
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so wait, what becomes of silk left inside the body? I don't really understand how it degrades
@ASlutty9SUnit
7 жыл бұрын
It bio-degrades. You're working with a pure, and sometimes thin (in the case of a silk encapsulated delivery mechanism), biological strand of protein fiber which can be made to self-degrade or will naturally be broken down by the body.
Awesome
4:11 This is the sort of thing Homer Simpson would imagine.
saying worm spit instead of silk is really stupid. it's like saying bee barf instead of honey.
@oogalook
5 жыл бұрын
Ah, but it's funny!
is anyone here for mr kuehl’s class
Strange enough this is new, only ten year and still under approval but the C19 vaxine is out and approved in less than an year. Well done, dear human fellows!
Are the worms harmed?
@43ten43
9 жыл бұрын
Chelsea Conlin Yes, they are savagely beaten until they hand over their silk nozzles. It's horrific. +SciFri Fantastic video. I've only really appreciated silk for its great qualities for backpacking gear, but this blew my mind.
@lgroskin
9 жыл бұрын
Chelsea Conlin After the cocoon is spun, the worm is typically baked/killed and removed. Some are left alive to breed. That said, there are worm-friendly silk providers that let all of the worms hatch out.
@cacodaemonia
9 жыл бұрын
***** Thanks for the reply!
@nikolaneberemed
7 жыл бұрын
In the original silk harvesting method, the cocoons were cooked before hatching. This was done because the whole cocoon is just one strand of silk, and they wanted the strand intact. If the let the silkworm hatch, it would cut open the cocoon and cut the strand into many shorter ones. But these guys don't care for the strand remaining intact, so they could harvest without harming any silkworms.
@kaikai9533
7 жыл бұрын
might be important to add that once silkworm reach cacoon stage they are at end of lifecycle. The moths that hatch out have no feeding organ and are only meant to reproduce. They will die within days.
A human spitting out worms?
so do they enslave the worms
@reececrump8483
8 жыл бұрын
define enslave? one work can only make one silk shell in its life time, so i would say its less like an enslavement and more like a harvest. the pupa at the center may remain un harmed after being extracted though, 1:32
that @2:57 is daddy. 😍😍😍😍