Nanoparticles Improve Stroke Treatment
July 28, 2014
Currently there is just one drug that has been approved for treatment of acute stroke—recombinant tissue plasminogen activator, or t-PA. Essentially it works by thinning blood clots. Researchers at the University of Georgia (UGA) announced last week that they have developed a magnetic nanoparticle that when combined with t-PA can make the drug significantly more effective.
The Georgia researchers injected magnetic nanorods into the bloodstream. When stimulated by rotating magnets the nanorods act as a kind of mixing tool that shakes up blood clots that have already been thinned by t-PA.
The injected nanorods “act like stirring bars to drive t-PA to the site of the clot,” said Yiping Zhao, professor of physics at UGA, in a press release. “Our preliminary results show that the breakdown of clots can be enhanced up to twofold compared to treatment with t-PA alone.”
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