A collaboration between international researchers has produced an ultra-thin implant capable of recording brain activity, delivering drugs, and stimulating multiple areas all at once. This innovative device, tested successfully in mice, promises to enhance precision in neuroscience research and could one day aid treatment of diseases like epilepsy.
- Combines recording, drug delivery, and stimulation in one implant
- Flexible design reduces brain tissue irritation
- Successful initial tests in live mice
What happened
Researchers from DTU, University of Copenhagen, University College London, and other partners have engineered a novel brain implant named the microfluidic Axialtrode (mAxialtrode). This device features a long, needle-thin flexible fiber housing microscopic channels and electrodes, allowing it to record neural activity, deliver drugs, and stimulate several brain areas simultaneously.
Unlike current brain implants made from rigid materials like silicon, the mAxialtrode’s soft, plastic-like composition with an angled tip minimizes tissue damage and inflammation. The fiber is less than half a millimeter wide, and its unique design is intended primarily for research, demonstrated successfully in living mice where it conducted simultaneous recording, drug administration, and light stimulation.
Why it feels good
The innovation promises to streamline brain research by integrating multiple functions into a single implant. This reduces the need to insert several devices into the brain, lowering the risk of tissue damage and inflammatory responses often caused by harder, bulkier implants.
Furthermore, its flexibility allows the device to move with the brain’s natural motions, potentially improving comfort and longevity for future clinical use. The ability to stimulus and monitor multiple areas simultaneously also aligns better with the brain’s complex, layered communication, fostering a deeper understanding of neurological processes.
What to enjoy or watch next
Although still at an early stage focused on research applications, the mAxialtrode’s potential to treat neurological conditions such as epilepsy is exciting. Researchers envision it could one day deliver precise drug doses while applying targeted electrical or light stimulation to regulate brain activity in patients.