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Tired of having to reach for your night vision goggles when you want to track someone's heat signature after dark?

Well, biotech may someday come to the rescue, for all of you aspiring spies.

Because researchers have developed an injectable nanoscale antenna,

which they've used to allow mice to see beyond their normal visual spectrum

and into the infrared. The work appears in the journal's cell.

Like all mammals, we humans are only able to see light in the visible spectrum, which includes all of the colors of the rainbow.

That limitation is due to the photoreceptors in our eyes being only able to detect radiation with a wavelength of around 400 to 700 nanometers.

Which means we can't see infrared and near infrared light, which has wavelengths a little bit longer.

And that got scientists thinking.

So we're always curious whether we can use any method or technique to allow us to on University of Science and Technology of China. He reached out to his colleague,

Gang Hong at the University of Massachusetts Medical School, who engineered a teeny

tiny device which he calls an up-conversion nanoparticle.

We actually develop nanoparticles so we call up-conversion nanoparticles.

That actually can effectively be active by this near infrared light.

Then they started testing their system in mice.

The nanoparticles attach themselves to photoreceptors

in the animal's retinum retina. There they absorb infrared radiation and convert it to

visible green light.

This green light is observed by retinal cells, which the brain then interprets as regular visible

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