Story perspectives

NanoPowder Spray Slashes Stroke Damage 80%, Wins Geneva Prize

5/7/2026

Summary

Story summary

Professor Aviva Chow Shing-fung and Dr Shao Zitong introduced the NanoPowder nasal spray, a portable inhaled micron-powder that delivers neuroprotection en route to hospital.
Animal studies showed delivery within 30 minutes reduced infarct size by over 80% and preserved function.
The project won the Grand Prize and Gold Medal at the 51st International Exhibition of Inventions Geneva, received InnoHK funding, and could deliver drugs for Alzheimer’s, motor-neuron disease and meningitis.

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Story summary

Professor Aviva Chow Shing-fung and Dr Shao Zitong introduced the NanoPowder nasal spray, a portable inhaled micron-powder that delivers neuroprotection en route to hospital.
Animal studies showed delivery within 30 minutes reduced infarct size by over 80% and preserved function.
The project won the Grand Prize and Gold Medal at the 51st International Exhibition of Inventions Geneva, received InnoHK funding, and could deliver drugs for Alzheimer’s, motor-neuron disease and meningitis.