Category Health/Medical

3D-printed, bioresorbable implant could help patients regenerate their own heart valves

        The bioresorbable heart valve (yellow) and a 3D-printed heart model.
The bioresorbable heart valve (yellow) that promotes tissue regeneration and a 3D-printed heart model.

Every year, more than 5 million people in the U.S. are diagnosed with heart valve disease, but this condition has no effective long-term treatment. When a person’s heart valve is severely damaged by a birth defect, lifestyle, or aging, blood flow is disrupted. If left untreated, there can be fatal complications.

Valve replacement and repair are the only methods of managing severe valvular heart disease, but both often require repeated surgeries that are expensive, disruptive, and life-threatening. Most replacement valves are made of animal tissue and last up to 10 or 15 years before they must be replaced...

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Korean team unveils fine structure of magnons for neuromorphic devices

A clue to improving the completeness level of neuromorphic devices has been discovered
VNA equipment (left) and the magnon device (right) used by the research group to observe the magnon microstructure. Credit: Korea Research Institute of Standards and Science (KRISS)

A Korean research team has succeeded in securing a basic technology for further improving the completeness level of neuromorphic devices. Their paper is published in the journal Nature Communications.

Researchers from the Korea Research Institute of Standards and Science observed the fine structure of the magnon, which is attracting attention as a key material for neuromorphic devices. As areas that are approximately 1,000 times finer than before were observed successfully, it is expected that the results will enable the design of more sophisticated neuromorphic devices.

Neuromorphic devices are next-...

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Waste to wealth: Pomelo peel can be used for electricity generation and sensing devices

Waste to wealth: Pomelo peel can be used for electricity generation and sensing devices
The researchers developed pomelo peel-based devices for energy harvesting and self-powered sensing. Credit: ACS Applied Materials & Interfaces (2024). DOI: 10.1021/acsami.4c02319

Pomelo is a large citrus fruit commonly grown in Southeast and East Asia. It has a very thick peel, which is typically discarded, resulting in a considerable amount of food waste. In a new study published in ACS Applied Materials & Interfaces, University of Illinois Urbana-Champaign researchers explore ways to utilize waste pomelo-peel biomass to develop tools that can power small electric devices and monitor biomechanical motions.

“There are two main parts of the pomelo peel—a thin outer layer and a thick, white inner layer. The white part is soft and feels like a sponge when you push on it...

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Newly discovered ‘Ovoid’ brain cells reshape understanding of how memory works

Meet the newly discovered brain cell that allows you to remember objects

Take a look around your home and you’ll find yourself surrounded by familiar comforts—photos of family and friends on the wall, well-worn sneakers by the door, a shelf adorned with travel mementos. Objects like these are etched into our memory, shaping who we are and helping us navigate environments and daily life with ease. But how do these memories form? And what if we could stop them from slipping away under a devastating condition like Alzheimer’s disease?

Scientists at UBC’s faculty of medicine have just uncovered a crucial piece of the puzzle. In a study published in Nature Communications, the researchers have discovered a new type of brain cell that plays a central role in our ability to remember and recognize objects.

Called “ovoid cells,” these highly-specialized neur...

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