scienceyoucanlove:

Injecting gold nanorods into a male&rsquo;s testicles and heating them with a near-infrared laser could work as a reversible male contraceptive, new research suggests. The study in mice found that the method killed sperm cells when it heated testes to between 37 and 40 degrees Celsius, but after a few months sperm production began to return to normal. Other researchers are looking at using these gold nanoparticles to heat up and kill tumor cells.Read more:&nbsp;http://bit.ly/18mn3Md&nbsp;via Chemical &amp;amp; Engineering News
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