Reporter Yang Jinwei learned from the Cell Marketing Department's China Marketing Department that a study published recently by Cell magazine showed that by combining visual biomedicine and nanotechnology, the visual ability of mice can be enhanced to see both infrared and visible light. Only one eye nanoparticle injection can give the mouse more than 10 weeks of infrared vision and no significant side effects. Infrared vision mice can see infrared light even during the day, and their infrared visual resolution is sufficient to distinguish between different patterns. The author of the paper, Professor Xue Tian of the School of Life Sciences of the University of Science and Technology of China, said that the research proves that both rods and cones can be combined with these nanoparticles and activated by near-infrared light. This technology can play a role in human eyes, not only Being able to create super vision can also help treat red color and color in humans.
Humans and other mammals can only see light in a certain wavelength range, ie visible light. But in fact, we are still filled with infrared light with a longer wavelength. People, animals, and all objects emit infrared light when they emit heat, and they also reflect infrared light. "The visible light perceived by human natural vision only occupies a small part of the electromagnetic spectrum, and electromagnetic waves longer or shorter than the visible wavelength carry a lot of environmental information." Xue Tian said.
The University of Science and Technology of China and the University of Massachusetts Medical School team developed a nanotechnology that works with the existing photosensitive structures of the eye. Nanoparticles produced by researchers are tiny infrared sensors that attach tightly to photoreceptor cells. When infrared light is applied to the retina, these nanoparticles are capable of capturing longer wavelengths of infrared light and emitting shorter wavelengths of light in the visible range; nearby rods or cones absorb these shorter wavelengths of light, And send light-induced electrical signals to the brain, just as visible light directly shines on the retina.
Researchers believe that if applied to the human body, the emission spectrum of the nanoparticles needs to be fine-tuned to make it more suitable for human eye cones. This technology will likely give humans super-visual capabilities beyond the limits of natural law, promote the advancement of human infrared vision technology, and may be used in civil encryption, security, and military fields.
Source: Health News
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