The world of brain-computer interfaces (BCIs) is buzzing with a new innovation. MXene microneedle electrodes are making waves as a game-changer in the field. These tiny, needle-like structures are designed to penetrate the skin's surface just enough to get a clear signal from the brain. They are made from MXene, a conductive material that makes the electrodes work...

A new method has been developed to create stronger hydrogels for repairing soft tissues. This method uses tiny fibers made of hydroxyapatite, a mineral found in bones, to reinforce a hydrogel made from polyvinyl alcohol and sodium alginate. These fibers are so small that they can fit into the tiny spaces within the hydrogel's structure. This makes the hydrogel much s...

Ever wondered how those custom-made teeth aligners are made and if they're safe? A recent study looked into the safety of 3D-printed aligners made from a material called Tera Harz TA-28. These aligners can have different thicknesses, which might affect how long they need to be cured under UV light to ensure they're safe for your mouth. Scientists printed aligners of ...

Three-dimensional printing has revolutionized the way we think about creating tissue replacements. What makes this technique so versatile is the ink used to print the tissues. Ideally, this ink should be safe to use in the body, stable, and capable of maintaining its shape, size, and function after printing. Enter liquid collagen ink, a cutting-edge development in th...

Scientists have been experimenting with a mix of iron and a calcium compound called hydroxyapatite (HA) to create biodegradable materials. They mixed these powders together and then shaped them into composites using a process called powder metallurgy. They found that how long they mixed the powders (known as ball milling time), how hard they pressed the composite (pr...