MIT researchers develop new bioadhesive to prevent immune rejection of medical implants

Implantable medical devices, such as nerve stimulators, hold great promise for treating chronic diseases, but the human body often fights back. When a device is implanted, the body typically wraps it in scar tissue—a process called fibrous encapsulation—which eventually blocks the device's electrical signals and causes it to fail. Researchers at MIT have now developed a breakthrough solution: a new bioadhesive gel inspired by the way sticky proteins work in nature.

This specialized gel coats the implant and adheres seamlessly to the nerve tissue, effectively "hiding" the device from the immune system. In animal studies, this coating prevented the formation of scar tissue for months, allowing the devices to continue regulating blood pressure without interruption. This innovation is significant because it solves one of the biggest hurdles in bioelectronic medicine. By keeping the interface between the machine and the nerve clear of scarring, this technology could pave the way for long-lasting implants that treat everything from hypertension to paralysis without needing frequent replacement.

Read the original article at: https://news.mit.edu/2025/new-bioadhesive-strategy-can-prevent-fibrous-encapsulation-around-device-implants-peripheral-1203


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