nanoparticles

Sunscreens could be toxic for health--study

Sunscreens may protect you against the harmful UV rays but recent scientific evidence cautions that nanoparticles present in sunscreens could prove bad for health if consumed accidentally.

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A study conducted by researchers at the Department of Pharmacology and Toxicology of University of Utah, U.S., shows that sunscreens contain nanoparticles of zinc oxide, which is toxic in nature and can harm the colon cells if eaten accidentally.

To come up with this finding, the researchers carried out lab experiments with cell cultures of colon cells and compared the effects of zinc oxide nanoparticles to larger sized zinc oxide particles sold as a conventional powder.

Sunscreen nanoparticles found to be toxic

Nanobubbles may kill cancer cells, say scientists

New York, February 6 -- In what may transform cancer cure, scientists claim to have discovered a new technique for cornering unhealthy cancer cells, and killing them with tiny explosions, using lasers, and nanoparticles.

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The breakthrough could significantly help in better diagnosis, and treatment of cancer, saving millions, the scientists said.

Currently available cancer diagnosis and treatment options are extremely difficult for both the patients as well as the caregivers.

Leukemia cells, cancer cells examined
The new study by scientists Dmitri Lapotko and Jason Hafner from the Rice University, Houston, Texas, U.S. tested the technique on leukemia cells and cancer cells from the head and neck.

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