Monkeys cured of color blindness
By manipulating a virus to carry genetic material for L-opsin production, researchers were able to give red-green sight to two adult male monkeys. The particular type of monkey used in the experiment is known to be unable to see red-green distinction in the natural environment.
Neitz was quick to caution that “there’s a lot of steps before we actually cure a real blindness in people.” Except for the LCA trials, proposed gene therapies for blindness are still in animal-testing stages, if they’ve even progressed that far. The monkeys appear free of any side effects, but safety still needs to be proven.
Williams, however, was quicker to speculate. “Ultimately we might be able to do all kinds of interesting manipulations of the retina,” he said. “Not only might we be able to cure disease, but we might engineer eyes with remarkable capabilities. You can imagine conferring enhanced night vision in normal eyes, or engineering genes that make photopigments with spectral properties for whatever you want your eye to see.”
I'll certainly be interested to see where this technology goes. I remember hearing a bit on NPR a few weeks ago about birds having a 4th color receptor (beyond human's red, green, blue) in the UV spectrum. I'd like to be able to see a bit more detail in my world...
Tiny tiny lasers…
(From the arXiv Blog @ Technology Review)
A group of researchers in Germany have designed a SPACER that we can expect to hear more about. Their device may eventually be a replacement for the transistor.
A SPASER derives it's namesake from the LASER:
LASER = Light Amplification by Stimulated Emission of Radiation
SPASER = Surface Plasmon Amplification by Stimulated Emission of Radiation
The buzzword of the day is "nanoPlasmonics". Have all sorts of fun with that.
A LASER is neat because (among other things) of the way it generates new photons... in a sort of chain reaction called Stimulated Emission. That chain reaction is responsible for the light's 'coherence'.
A SPASER is neat, because it will allow for the use of coherent light for imaging & manipulation @ the nano-scale, where LASERs are ineffective because of their macro-size wavelengths.