Heart surgery with quick-setting magnetic fluid could prevent strokes
Nature Podcast
podcast@nature.com
4.5 • 893 Ratings
🗓️ 4 March 2026
⏱️ 18 minutes
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Summary
Injectable fluid safely fills area in which blood clots can form, in animal trials — plus, strong evidence that an elusive form of diamond has been made in the lab.
00:47 A magnetic seal to stop clots forming in the heart
Research Article : Wang et al.
News and Views: Magnetic fluid offers better seal in heart-plugging medical procedure
Video: Magnetic gel injected into the heart could stop strokes
07:02 Research Highlights
Nature: Sewage systems secretly waft pollution into the air
Nature: This ant species is composed of only queens — no workers or males
11:31 Making hexagonal diamond
Research Article: Lai et al.
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Transcript
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| 0:00.0 | Nature. |
| 0:02.0 | In a experiment. |
| 0:05.0 | Why is blight so far? |
| 0:08.0 | Like, it sounds so simple. |
| 0:09.0 | They had no idea. |
| 0:11.0 | But now the data's... |
| 0:12.0 | I find this not only refreshing, but at some level astounding. |
| 0:20.0 | Nature. |
| 0:26.0 | Welcome back to the nature podcast. |
| 0:31.2 | This time a magnetic fluid to seal up part of the heart. |
| 0:34.6 | And exploring the hardness of hexagonal diamond. |
| 0:36.3 | I'm Charmany Bandelle. |
| 0:37.7 | And I'm Nick Petra Chow. |
| 0:55.3 | To reduce the risk of stroke, researchers have developed a magnetic fluid that can seal up part of the heart. |
| 0:57.9 | I hope it can help people. |
| 1:03.5 | This is Shu Jinja, one of the authors of a new paper in nature about this magnetic fluid. |
| 1:09.2 | Now, you might be wondering how blocking up part of the heart relates to stroke. |
| 1:11.6 | Well, the thing is, in addition to the four compartments of the heart you're probably familiar with from school, the upper atria and the lower |
| 1:16.7 | ventricles, there's an additional appendage on the left atrium that you may not have heard of. |
| 1:23.2 | It's inventively called the left atrial appendage. Typically, it helps regulate blood volume, |
| 1:29.6 | but things can go awry if people have an unusually high heart rate, |
| 1:34.3 | a condition that affects millions of people worldwide. |
... |
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