Injecting nanoparticles in the blood curbed brain swelling in mice
After a head injury, the tiny particles diverted inflammation-causing cells from the brain
![illustration of blood vessels](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/02/020320_ls_nanoparticles_feat.jpg?fit=1028%2C579&ssl=1)
Nanoparticles cruising through blood vessels (illustrated) may distract immune cells from harming the brain after an injury, a study in mice suggests.
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