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Nature Podcast

09 April 2020: A plastic-recycling enzyme, and supercooled molecules

Nature Podcast

podcast@nature.com

News, Science, Technology

4.5893 Ratings

🗓️ 8 April 2020

⏱️ 17 minutes

🧾️ Download transcript

Summary

This week, a new enzyme speeds up the breakdown of plastic bottles, and a method to cool molecules to a fraction above absolute zero.


In this episode:


01:18 A PET recycling enzyme

Researchers have engineered an enzyme that effectively breaks down the plastic PET into its constituent monomers. This could allow for more complete recycling of bottles and clothes. Research Article: Tournier et al.


06:41 Research Highlights

The shocking lengths humans will go to to satisfy their curiosity, and the reasons for elevated methane emissions at Oktoberfest. Research Highlight: Humans opt to brave electric shock to satisfy their curiosity; Research Highlight: Munich’s Oktoberfest is a real gas


09:15 Supercool molecules

Researchers have used a technique called ‘collision cooling’ to chill molecules to a few millionths of a degree above absolute zero, which could allow observations of difficult-to-study quantum mechanics. Research Article: Son et al.


14:46 Research Highlights

Neither supermassive, nor super small, the mystery of the elusive intermediate sized black-hole has been solved. Research Highlight: Elusive middle-weight black hole is caught shredding a star


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Transcript

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0:00.0

nature an experiment i don't know yet why is like so far like it sounds so simple they had no idea

0:10.7

but now the data's i find this not only refreshing but but at some level astounding nature

0:20.4

welcome back to the Nature.

0:25.7

Welcome back to the nature podcast.

0:28.8

This week, super cool molecules.

0:32.0

And an efficient plastic degrading enzyme.

0:33.3

I'm Chameney Bundell.

0:34.7

And I'm Nick Howl.

0:49.8

As you probably know by now, we've been making some changes recently,

0:54.3

including recording from a variety of pillow fort studios in our living rooms and keeping the main nature podcast a coronavirus-free zone.

0:59.3

I will just do a little plug though for our Friday Corona Pod,

1:03.8

where we've jammed in all the coronavirus science in one handy weekly show.

1:08.4

Do check it out.

1:09.5

In the meantime, we've got plenty of fascinating science

1:12.3

nuggets for you here, and starting us off a better way to deal with plastic waste. That's right.

1:18.1

I don't think many people would argue with the importance of recycling plastic. But the way

1:23.6

it's currently done means that a lot of plastic actually ends up in landfill anyway.

1:28.6

But this week in nature, French company Carbius, working with the Toulouse Biotechnology Institute,

1:35.1

report a powerful new way to avoid the landfill, using an enzyme to very effectively break down plastic.

1:42.8

So, reporter Ali Jennings has been talking to Carbios' chief scientific officer, Alan,

1:49.9

Ali started by asking Alan about the scale of the problem they set out to tackle.

1:54.4

The problem is really plastic waste, and unfortunately, 9 million tons of plastics end up in

...

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