cover of episode Smologies #30: SPIDERWEBS with Randy Lewis

Smologies #30: SPIDERWEBS with Randy Lewis

2023/10/30
logo of podcast Ologies with Alie Ward

Ologies with Alie Ward

AI Deep Dive AI Chapters Transcript
People
A
Allie Ward
R
Randy Lewis
Topics
Randy Lewis: 我研究蜘蛛丝已经有30年了。蜘蛛会制造六种不同的蛛丝和一种胶水,这些蛛丝具有不同的特性和用途,例如强度、弹性和粘性。不同的蛛丝由不同的蛋白质组成,这些蛋白质的分子结构决定了蛛丝的特性。蛛丝的产生是一个复杂的过程,牵涉到蛋白质分子在蛛丝腺内的排列和凝固。蜘蛛吐丝的过程类似于挤压意大利面,蛋白质分子在通过腺管时排列整齐,然后凝固成纤维。蜘蛛吐丝利用腿、重力以及将丝固定在物体上等多种方式。 我们已经成功地将蜘蛛丝基因植入山羊和蚕等生物体内,以实现蜘蛛丝的实验室生产。将蜘蛛丝基因植入蚕体内,可以使蚕吐出具有高强度和高价值的蜘蛛丝。研究人员最初在细菌中表达蜘蛛丝蛋白,然后转向山羊和苜蓿等生物。 蜘蛛丝除了可以制成纤维外,还可以用于复合材料和粘合剂等领域。蜘蛛丝的独特之处在于它兼具强度和弹性,这使得它在许多应用中具有优势。 有些蜘蛛的蛛丝天生就带有颜色,例如金球蛛的蛛丝是金色的。一些蜘蛛会吃掉自己的蛛丝并回收利用。小蜘蛛通过吐丝和利用风力进行“飞翔”,这种现象被称为“气球飞行”。根据计算,蜘蛛侠在电影中阻止火车是可能的,但他需要消耗大量的蛋白质才能产生足够的蛛丝。蜘蛛网和蛛网的区别在于结构和粘性,蛛网通常是三维的,不具有粘性。 Allie Ward: 常见的圆形蜘蛛网是织网蜘蛛的杰作,而“蜘蛛网”和“蛛网”的区别在于前者指有蜘蛛居住的网,后者指废弃的网。粘在脸上的蛛丝是多种蛛丝和胶水的组合。

Deep Dive

Chapters
Spidroins are the main proteins in spider silk, known for their strength and flexibility. Spiders produce six different kinds of silk with varying properties, using spinnerets and a pulling mechanism to extrude the silk from glands. The process involves protein molecules lining up and locking together to form insoluble fibers.
  • Spidroins are the main proteins in spider silk.
  • Spiders produce six different kinds of silk.
  • Silk is pulled out, not squeezed.
  • Protein molecules line up and lock together to form fibers.

Shownotes Transcript

ANNOUNCEMENT: SMOLOGIES NOW HAS ITS OWN FEED! SUBSCRIBE)  FOR NEW EPISODES EVERY THURSDAY. 

**Subscribe to Smologies: **https://pod.link/1746567248)

Invisible but stronger than steel. Complex architectural marvels. Things that stick to your face. Spiderwebs are much more than just Halloween decor or something to feather dust from your corners. Spider silk expert Dr. Randy Lewis of Utah State University not only coined the word "spidroin" for the proteins comprising the many types of silk, but he is considered one of the foremost experts on the wonders of spiderwebs. Alie visits his lab and chats about how spiders weave them, what the silk is made of, and how realistic your favourite spidey superhero’s antics are. You'll never (not) see a spiderweb the same.

A donation went to the Women's Empowerment and Entrepreneurship Workshop)

Full-length (not G-rated) Spidroinology episode + tons of science links)

More kid-friendly Smologies episodes!)

Become a patron of Ologies) for as little as a buck a month

OlogiesMerch.com) has hats, shirts, masks, totes!

Follow @Ologies on Twitter) and Instagram)

Follow @AlieWard on Twitter) and Instagram)

Sound editing by Steven Ray Morris), Jarrett Sleeper) of MindJam Media), and Mercedes Maitland of Maitland Audio Productions)

Made possible by work from Noel Dilworth, Susan Hale, Kelly R. Dwyer, Emily White, & Erin Talbert

Smologies theme song by Harold Malcolm