Nasal drops may offer a new non-invasive way to help the body fight aggressive and deadly brain cancers.

Researchers at Washington University School of Medicine and Northwestern University have developed a technology that uses precisely engineered structures made from tiny materials to deliver tumor -fighting medicine to the brain—through the nose.

In mice studies, they found the new method effectively treated glioblastoma by boosting the brain’s immune response. "In the lab, we use carefully dosed liquid drops in the nose of mice," paper author and neurosurgeon professor Alexander Stegh, of Washington University, told Newsweek .

While the nasal spray is not presently consumer-ready, Stegh said that when it does move into the clinic, "the end product would likely look and feel very

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