Atrial fibrillation is a common heart condition characterized by a rapid, irregular heartbeat stemming from the heart’s upper chamber. It is a leading cause of stroke from clots that form in a small pouch of the heart called the left atrial appendage (LAA). While several treatment options exist, they have many drawbacks, and risks often remain. But now, researchers have developed a promising new treatment involving magnetic fluids. Their study, published in Nature, describes the new procedure and results from rat and pig studies.

Atrial fibrillation treatment options
Blood thinners are a common treatment for atrial fibrillation...

Healable spacecraft structures could soon be possible thanks to cutting-edge composite technology. Swiss companies CompPair and CSEM with Belgian company Com&Sens have partnered with the European Space Agency (ESA) to modify their self-healing carbon fiber product for use in space transportation.

Project Cassandra (a loose abbreviation of Composite Autonomous SenSing AnD RepAir) includes sensors and a heating element into a composite carbon-fiber material, allowing spacecraft to autonomously repair initial stages of damage.

Cassandra is part of ESA’s Future Innovation Research in Space Transportation (FIRST!) Initiative which is finding and testing innovative technology that will benefit European space transportation.

Composite materials in space
Composite materials like carbo...

More than 10,000 Americans who suffer from chronic liverdisease are on a waitlist for a liver transplant, but there are not enough donated organs for all of those patients. Additionally, many people with liver failure aren’t eligible for a transplant if they are not healthy enough to tolerate the surgery.

To help those patients, MIT engineers have developed “mini livers” that could be injected into the body and take over the functions of the failing liver.

In a new study in mice, the researchers showed that these injected liver cell...

Most materials we use in everyday life expand slightly when heated and return to their original size when cooled. In addition to such thermal properties, materials can also have electrical properties or magnetic properties, and traditionally we have used these characteristics separately. However, some materials allow multiple properties to coexist within a single substance.

Research on such materials is expected to contribute to the development of next-generation memory devices that can store and retain information while consuming far less energy.

How multiferroics could transform memory
A representative example is a class of materials known as multiferroics, which combine the properties of a capacitor (the ability to store electric charge) and a magnet...