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Silkworms that eat carbon nanotubes and graphene spin tougher silk

cen.acs.org

21–30 of 74 posts

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#21
post #17

Earlier quoted context omitted.

Breathing pure oxygen is also harmful.

Or drinking too much water.

The Adam Ruins Everything segment on this was great, it takes a large deal of water to poison yourself but somehow people manage to do it because of myths about hydration.

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#22
post #2

I sense a new explanation for Spiderman's webs on the next reboot. But seriously, are we anywhere close to using this stuff for human benefit? Or near learning how these worms do what they do? This sounds fabulously awesome.

Space elevator!

Monopolize space

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#23
post #15
post #3

I wonder what effects this process has on the organism. For instance what would happen if humans ate graphene?

The good news about silkworms is that they're not in it for the long haul anyway, so as long as there are no teratogenic effects, it's all ok.

While it's probably a negligible risk, we would breathe the dust from silk fibers if the stuff were produced in significant quantity.

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#24
post #15

Earlier quoted context omitted.

The good news about silkworms is that they're not in it for the long haul anyway, so as long as there are no teratogenic effects, it's all ok.

While it's probably a negligible risk, we would breathe the dust from silk fibers if the stuff were produced in significant quantity.

We're already doing that; we produce nanoparticles of carbon from a number of industrial processes, most notably burning coal. IIRC there was an article on HN recently about finding some magnetic nanoparticles which had made their way into human brains.

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#25
post #9
post #7

Earlier quoted context omitted.

Indeed, they are: https://www.ncbi.nlm.nih.gov/pubmed/23751780 http://www.psr.org/environment-and-health/environmental-heal... The mechanism is similar to that of asbestos.

Unless dissolved in olive oil, then it has lifespan extending properties. https://alzdiscovery.org/cognitive-vitality/report/fullerene...

Not to defend any unsubstantiated claims, but C60 is not exactly the same as a nanotube. There doesn't seem to be evidence that C60 is toxic/carcinogenic (though not necessarily solid evidence in the other direction either): https://en.wikipedia.org/wiki/Health_impact_of_fullerenes#Bu...

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#26

Geez. This will make its way into the food supply. Remember, some South Koreans (and maybe other East Asian cultures) eat silkworm pupae for food. Cheap protein, and there's no need to waste calories in that culture.

ya eating crickets is also supposed to be protein dense, its good thing tho, because red meats are devastating to the eco system. Id be down to try some cricket flower cookies :D

Completely off-topic, but it's funny you mention this. A few weeks ago, I was looking at one of the stores I buy various odds and ends from that I can't find locally (fairly mainstream food-related shop that's known for selling nuts and dried fruits) and ran into cricket flour [1]. I suppose I shouldn't be overly surprised, but it's certainly unexpected. The allergy warnings are particularly interesting (shellfish).

If you're not sure about buying cricket flour, it appears they now sell orange ginger cookies made with it [2]. One of these days I might buy some. But, again, beware that people with shellfish allergies may react to crickets.

[1] https://nuts.com/cookingbaking/flours/cricket-flour.html

[2] https://nuts.com/snacks/cookies/orange-ginger-cricket-cookie...

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#27

Geez. This will make its way into the food supply. Remember, some South Koreans (and maybe other East Asian cultures) eat silkworm pupae for food. Cheap protein, and there's no need to waste calories in that culture.

ya eating crickets is also supposed to be protein dense, its good thing tho, because red meats are devastating to the eco system. Id be down to try some cricket flower cookies :D

In case you haven't heard of them, https://www.exoprotein.com/ makes energy bars from cricket flour. I tried some a few years ago, I found them palatable but haven't had a desire to try them again.

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#28
post #17

Earlier quoted context omitted.

Breathing pure oxygen is also harmful.

Or drinking too much water.

Everything is toxic in too large amount.

https://en.wikipedia.org/wiki/The_dose_makes_the_poison

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#29
post #22
post #2

I sense a new explanation for Spiderman's webs on the next reboot. But seriously, are we anywhere close to using this stuff for human benefit? Or near learning how these worms do what they do? This sounds fabulously awesome.

Space elevator! Monopolize space

Silk reinforced with carbon nanotubes still isn't strong enough for a space elevator :'(

Re: Silkworms that eat carbon nanotubes and graphene spin tougher silk

#30
post #10

Earlier quoted context omitted.

pure carbon is, counter-intuitively, carcinogenic.

Indeed, I naively assumed that being a carbon based organism, more carbon couldn't do much harm.

Carbon based expression is misleading as usual. Organic based life (i.e. based on carbon structure chemistry) is more accurate.
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