Delivering life-saving drugs directly to the brain in a safe and effective way is a challenge for medical providers. One key reason: the blood-brain barrier, which protects the brain from tissue-specific drug delivery. Methods such as an injection or a pill aren’t as precise or immediate as doctors might prefer, and ensuring delivery right to the brain often requires invasive, risky techniques.

Via:: https://phys.org/news/2017-04-simple-nanoparticle-locusts-focuses-drug-delivery.html

A simple sniff: Nanoparticle research tested in locusts focuses on new drug-delivery method

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