Chinese nanotechnologists injected tiny particles into the eyes of mice resulting in the rodents demonstrating "infrared 'night vision'" that lasted for months. According to nanoscientist Tian Xue and colleagues the University of Science and Technology of China, the technology could eventually help those with certain kinds of color blindness and "provide the potential for close integration within the human body to extend the visual spectrum." From New Scientist:
Like humans, mice cannot perceive light with a wavelength longer than 700 nanometres, which is at the red end of the visible spectrum. But the nanoparticles absorb light with longer – infrared – wavelengths and convert it into shorter wave light that retinal cells can detect. This converted light peaks at a wavelength of 535 nanometres, so the mice see infrared light as green...
Some mice did develop cloudy corneas after the injection, but this disappeared within a fortnight and occurred at similar rates to those in the control group. The team found no other evidence of damage to the mice’s eyes two months after the experiment.
The researchers published their findings in the scientific journal Cell: "Mammalian Near-Infrared Image Vision through Injectable and Self-Powered Retinal Nanoantennae"
Scientists say that traces of SARS-CoV-2 genetic material — viral RNA — in the poo we flush down the toilet and into the sewage system might reveal how badly coronavirus has hit a given community. Analyzing sewage could show the true scale of an outbreak, in the absence of available testing, they say.
Even tho they are only updated once a day (at most) I check, check and re-check 91-divoc and the IHME COVID-19 Projections. The linear scale graphs on 91-divoc have given me the best picture of ‘is the curve flattening’ for the regions I watch. Tribalism runs rampant during Trump’s Pandemic and I am naturally more […]
More than 125 of these curious soccer ball-sized glass spheres hang near the floor of the Mediterranean Sea. Even though they’re deep underwater, they’re keeping a constant vigil for neutrinos, particles that may be evidence of dark matter, supernovae, and neutron stars far off in intergalactic space. Eventually, the Cubic Kilometer Neutrino Telescope (KM3NeT) will […]
Whether it was Bach or Chopin, Ray Charles or Jerry Lee Lewis, Stevie Wonder, Elton John, Alicia Keys or Norah Jones, there was someone whose mastery on the piano made you think, wow, I wish I knew how to do that. It’s a singular, almost timeless skill — and if you love music, there’s no […]
With everything happening now, even the most jaded among us are bound to feel some pangs of anxiety now and again. It’s a crazy time. When we crawl into bed each night, it’s common for our brains to go into overdrive and start thinking — and worrying — about what’s going on and what’s to […]
Whether it’s your boss, your old high school friends or your over-critical family you’re looking to impress, having your background looking as put together as possible during hours of Zoom calls is a must. You might not realize it in the moment, but that unmade bed in the back of your video chat shot says […]