Scientists in Hong Kong have developed the world's first nasal spray designed to protect brain cells immediately following a stroke. The innovative 'Nanopowder' spray delivers brain-protective drugs directly to the brain by bypassing the blood-brain barrier via the nose-to-brain pathway.
How It Works
Administering the spray within 30 minutes of stroke onset can reduce brain tissue death by over 80 per cent and protect neurological and body movement functions. This innovation aims to provide early protection en route to the hospital, significantly slowing cell death and extending the crucial therapeutic window for stroke treatment.
Potential Impact
Researchers believe this could be a breakthrough solution for prehospital emergency stroke treatment, shifting intervention from an in-hospital to an earlier stage. The nasal spray could be used as an 'emergency rescue tool' after stroke, offering hope for millions worldwide.



