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Sugar-Coated Brain Implants: Scientists Find Sweet Solution to a Hard Problem
The consistency of these implants, scientists say, will ensure they cause minimum irritation within the brain and reduce the foreign body response. By Edited by Gadgets 360 Newsdesk | Updated: 11 May 2021 16:48 IST
Photo Credit: McGill
Highlights
The implants they created are so soft
Researchers found higher neuronal density and lower foreign body response
A team of researchers at Canada s McGill University has succeeded in developing a new method to create brain implants that are as soft as the brain tissue itself. The researchers used silicon and sugar to create delicate silicone implants, the softest brain implant to the day, as thin as sewing thread (nearly 0.2 mm). Its consistency, scientists say, will ensure they cause minimum irritation within the brain and reduce the foreign body response. The study was published in the Advanced Materials Technologies journal
Sweet, soft solution to hard brain implants
Brain implants are used to treat neurological dysfunction, and their use for enhancing cognitive abilities is a promising field of research. Implants can be used to monitor brain activity or stimulate parts of the brain using electrical pulses. In epilepsy, for example, brain implants can determine where in the brain seizures are happening.
Over time, implants trigger a foreign body response, creating inflammation and scar tissue around the implant that reduces their effectiveness.
The problem is that traditional implants are much more rigid than brain tissue, which has a softness comparable to pudding. Stress between the implant and the tissue caused by constant movement of the brain with respect to the implant signals the body to treat the implant as a foreign object. This interaction between the implant and the brain is similar to a knife cutting into a piece of pudding. An implant as soft as brain tissue would be ideal, but such soft