NIH Radio
Health effects of nanoparticles – 3
Narrator: This is NIH Health Matters. I’m Joe Balintfy. Researchers are studying the health effects of two kinds of nanoparticles.
Nurkiewicz: One is a metal oxide, titanium dioxide, and that is a smaller, spherical nanoparticle.
Narrator: Dr. Tim Nurkiewicz at West Virginia University says the other is carbon nanotubes.
Nurkiewicz: And then we evaluate their health effects after exposure by measuring the ability for the blood vessels in the body to dilate or constrict because that really is the sign of a healthy tissue in that the blood vessels must be able to dilate to deliver more blood to an active tissue.
Narrator: He is studying what happens when these tiny particles, 50-thousand times smaller than a human hair, are inhaled. Learn more at niehs.nih.gov. Health Matters is produced by the National Institutes of Health, part of the U.S. Department of Health and Human Services.
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