can mice see in the dark ?! when we ask this question; our thinking will heading completely to the myths’ logic and the vast majority of people will think that it is just a joke.
But let us say that it’s true; because of some scientists from Asia have succeeded in giving a night vision to mice in a study published on 29 October 2019 in cell journal
Mammals eye vision
It’s well known that mammals like mice can see in the visible region which begins from 380 nm and ends with 740 nm, so they can’t see anything in the infrared light region (above 740 nm) and they can’t see also in the ultraviolet region (Below 380 nm).
can mice see in the dark
But in the current study, scientists at Science and Technology Chinese University in cooperation with some scientists from the United States succeeded in developing a type of nanoparticles that give mice the ability to see in the near-infrared region.
When the scientists injected the prepared nanoparticles into mice’s eyes; photoreceptor binding upconversion nanoparticles inside eyes allowed the injected mice to see in the dark.
The study depended mainly on the role of the prepared nanoparticles in converting the infrared light into green visible light, and this action allowed mice eye’ retinas to take images in the near-infrared light and this action also mimics the action of infrared goggles.
There are some confirming experiments that performed on mice’s physiological and behavioral reactions; to make sure that they indeed could see in the dark by using some additional techniques such as electroretinograms, single-photoreceptor recordings, and visual behavioral tests, and they confirmed that mice could actually see in the dark.
The study’s teamwork noticed that when they exposed mice to near-infrared light at low-power degrees; the eye’s pupils constricted at a point, while, there is no effect on the mice pupils when exposed to near-infrared light in the control group.
The study researchers gave additional information about their study results by saying:
We demonstrated that mice with these nanoparticles could not only perceive NIR light but also see NIR light patterns
Nanoparticles make mice see in the dark safely
The most important part of this study results is that researchers confirmed that this prepared nanoparticles didn’t interfere or leave any bad effect on the normal day vision.
And the effect of the injected nanoparticles on the mice lasted nearly 10 weeks without any negative side effects on mice’s eyes or on its overall health.
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can humans see in the dark
You may surprise when knowing that this recent research study results confirmed that mice can see in the dark, but on another hand, the main aim of the study was not only to make this rodent see in the dark but also for using it in many human applications such as using these nanoparticles in correcting color blindness disease besides using it also in many military purposes.
The real surprise is that the researchers intend to use the same nanoparticles at the soon future to make humans see in the dark
Therefore, this study is considered one of the most recent and important studies in the field of bionanoscience