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Scientists identify microbe that could help degrade polyurethane-based plastics

phys.org

21–30 of 77 posts

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#21
These microbes are surprisingly hard to scale up i.e. to make them work on large amounts of product at a time. (My wife did research on such bugs for a while).

All sorts of things start happening once you have a lot of them, and the process becomes incredibly tricky to keep going.

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#22
post #3

Is anyone else concerned about the effects this could have if it managed to get out of containment and into the wild? A self-replicating bacteria that eats plastics sounds like a potentially catastrophic event, considering how much we use them in day to day life.

We use too much plastic, too casually, wastefully, with eventual results of microplastic and carbon release into the atmosphere. I would not weep in the least if this stuff blew around world-over and forced us to change our behaviour.

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#23
post #18

Earlier quoted context omitted.

It might have been better to say, “In the article, they say that this is a microbe that already exists in the wild.” Your words make you sound rude, though you may not have meant to be.

Thank you, I'm quite aware that it made me sound rude. I don't think that hypothetical scare-mongering is very useful in this context. Especially not when it risks mis-representing what the article was actually about. Then it just contributes to the kind of information noise you can find many other places on the internet.

The HN site guidelines ask us to be kind:

Be kind. Don't be snarky. Have curious conversation; don't cross-examine. Comments should get more thoughtful and substantive, not less, as a topic gets more divisive.

And to specifically not do what you’ve done here:

Please don't comment on whether someone read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that."

If a comment inspires you to say something insightful or interesting, say it. Otherwise maybe don’t.

https://news.ycombinator.com/newsguidelines.html

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#24
post #16

How is this different from the products currently developed by companies like Carbios[1] ? I'm a totally ignorant in physics and chemistry (except from what I've studied at school) so excuse my genuine question. [1] https://carbios.fr/en/

Carbios looks like a product. This is essentially a microorganism that feeds on plastics.

Thats gonna be a hard to swallow pill for a lot of sea wildlife.

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#25
post #7
post #2

Have there been studies about the dangers of these types of microbes spreading out into the "wild"?

The article talks about a microbe that already exists in the wild.

I'm not referring to this article - I'm referring to the general case of plastic-eating microbes. Plastic eating organisms are not new. Even certain types of mealworms will eat styrofoam...

Articles like these are published several times a year, but I don't think I've seen any studies on the potential impact.

This article mentions it, but there are no accompanying references.

http://theconversation.com/how-plastic-eating-bacteria-actua...

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#26
post #3

Is anyone else concerned about the effects this could have if it managed to get out of containment and into the wild? A self-replicating bacteria that eats plastics sounds like a potentially catastrophic event, considering how much we use them in day to day life.

We use too much plastic, too casually, wastefully, with eventual results of microplastic and carbon release into the atmosphere. I would not weep in the least if this stuff blew around world-over and forced us to change our behaviour.

Just like woo flu

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#27
post #3

Is anyone else concerned about the effects this could have if it managed to get out of containment and into the wild? A self-replicating bacteria that eats plastics sounds like a potentially catastrophic event, considering how much we use them in day to day life.

We use too much plastic, too casually, wastefully, with eventual results of microplastic and carbon release into the atmosphere. I would not weep in the least if this stuff blew around world-over and forced us to change our behaviour.

I think you generalize it too much. There are many different plastics with many different properties. Some will degrade in a few years, others take a thousand years. Some degrade to micro particles floating in our seas for a long time. Others do not and can be even eaten.

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#28
post #3

Is anyone else concerned about the effects this could have if it managed to get out of containment and into the wild? A self-replicating bacteria that eats plastics sounds like a potentially catastrophic event, considering how much we use them in day to day life.

Yup. The whole reason we use plastic for everything is because it's cheap and mostly inert (i.e. doesn't break down in the environment). If plastic starts rotting we are going to be in for a really bad time. It's difficult to even imagine the cost of all the damage. Seems like we're a decently far way off from that point though.

It pains me to think about all the plastic items I’ve bought over the years that weren’t up to the task; degraded in the sun to the point of failure; or otherwise ended up in landfill.

Ideally any bacteria, or other microbes, would only breakdown plastics under certain conditions, probably in some kind of bioreactor.

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#29
post #3

Is anyone else concerned about the effects this could have if it managed to get out of containment and into the wild? A self-replicating bacteria that eats plastics sounds like a potentially catastrophic event, considering how much we use them in day to day life.

We use too much plastic, too casually, wastefully, with eventual results of microplastic and carbon release into the atmosphere. I would not weep in the least if this stuff blew around world-over and forced us to change our behaviour.

Some usages of plastics are essential. What about in medicine for example?

Re: Scientists identify microbe that could help degrade polyurethane-based plastics

#30
post #16

How is this different from the products currently developed by companies like Carbios[1] ? I'm a totally ignorant in physics and chemistry (except from what I've studied at school) so excuse my genuine question. [1] https://carbios.fr/en/

Carbios looks like a product. This is essentially a microorganism that feeds on plastics.

So this is the same as what is talked about in the post?
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