Blocked blood vessels in the brains of stroke patients
prevent oxygen-rich blood from getting to cells, causing severe
damage. Plants and some microbes produce oxygen through
photosynthesis. What if there was a way to make photosynthesis
happen in the brains of patients? Now, researchers reporting in
ACS’ Nano Letters have done just that in cells and in mice, using
blue-green algae and special nanoparticles, in a proof-of-concept
demonstration.

