_tom_ 15 hours ago [-]
More recent

https://www.nature.com/articles/s41467-022-31139-0

> reports tensile strengths up to ∼4.9 GPa

https://pubmed.ncbi.nlm.nih.gov/30142254/?utm_source=chatgpt...

> this paper details how specific chitin-binding proteins and nanoneedle mineral phases contribute to the hierarchical architecture that underpins the ∼3–5 GPa tensile strength range in limpet teeth

Researched with chatgpt o4-mini-high

Quotes from chatgpt summary.

ahazred8ta 8 hours ago [-]
The iron snail, Chrysomallon, inhabits undersea volcanic vents. It sticks to magnets. When probed with a diamond tip indentation test, it doesn't indent.
gweinberg 18 hours ago [-]
Materials that are strong under compression aren't necessarily strong under tension, and vice-versa. I would think teeth (just) need to be really strong under compression, and spider silk really strong under tension.
e28eta 17 hours ago [-]
I was curious about what they meant by strength, and the link at the bottom of the article says this is tensile strength. So the comparison to spider silk was actually appropriate.

I also noticed that it’s from 2015, although it was still new to me and interesting.

potato3732842 18 hours ago [-]
Strength per weight vs strength per volume are an issue as well.
andrewinardeer 17 hours ago [-]
Ten years ago.

Has there been any progress since then?

Ancalagon 15 hours ago [-]
A startup has since been founded to commercially farm limpet teeth for use in aircraft.

First viable airplane shell is anticipated to hit the market in 2250.

/s