The result of all this genetic engineering was a system that produces light in cells in which a retrotransposon has jumped.
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Previous research found that the shark has light-producing cells called photophores in its belly, and it uses this light to camouflage itself.
The chip contains 1500 pixels replacing the light-receiving cells that have died in retinitis pigmentosa patients by receiving external light and then transmitting those signals directly to the brain.
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Another is to add a coating on the glass covering the cells to reduce glare and allow more light to enter the cells.
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One, the Lange 1 Lumen, incorporated light-saving cells for nighttime decadence.
The inventors state that this could be used in flexible and efficient solar cells and light emitting diodes.
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And then she applied what she had learned and discovered a breakthrough process that uses light to kill cancer cells.
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The idea of controlling brain cells with light "captured our imagination, " recalls Boyden, who now runs his own lab at MIT.
All engineering mumbo-jumbo aside, the resulting nanocone-tipped cells converted light-to-power with efficiency of 3.2% compared to 1.8% efficiency of conventional planar structure of the same materials.
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Mongolian spots (technically named congenital dermal melanocytosis) are flat bluish-green, gray or light brown areas where cells called melanocytes have been trapped in a layer of the skin called the dermis.
The UCLA team describes a new kind of polymer solar cell (PSC) that produces energy by absorbing mainly infrared light, not visible light, making the cells nearly 70% transparent to the human eye.
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Using optogenetics, a technique that allows researchers to inhibit specific cells with light, the researchers turned off IL cortex activity for several seconds as the rats approached the point in the maze where they had to decide which way to turn.
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Besides being tweakable to match the spectrum of a light-bulb, dye-based cells also work well in dim or diffuse light of the sort often found indoors.
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When the laser hits the dyed cancer cells, they light up, but not very brightly.
Since then Deisseroth and Boyden have discovered other microbial proteins that can be used to turn brain cells off with light.
This printing process is already used in organic solar cells and organic light-emitting diodes (OLEDs) that form the displays of mobile phones.
Inside, photo-electronic cells read the light pattern and interpreted it as sound.
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Instead of being flat, the glass is slightly wavy (somewhat like the glass a shower stall), which more effectively focuses the light on the underlying solar cells.
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"The premises consists of cells without natural light and ventilation located in the basement and foundation and dug into the ground, " said Irina Petrova, assistant to the state attorney.
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In 2002 MIT professors started a not-for-profit called BioBricks that has collected 2, 000 biological components, including gene sequences that sense light, produce light, send messages between cells and switch cell functions on and off.
The retina is the back part of your eye with the cells that respond to light.
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McDaniel says that he can send instructions to cells by changing the light's wavelengths, frequency or intensity.
Solar cells, which convert light to electricity, have long relied on silicon, the same material upon which companies such as IBM and Intel build computer chips.
GentleWaves inventor McDaniel says he can send specific instructions to cells by changing the light's wavelengths, frequency or intensity, but he says the light "codes" he has created are proprietary.
Other creative opportunities being explored include natural gas pumps (hooked up to the home) to fuel natural gas vehicles, and light duty vehicles relying on fuel cells (which manufacturers hope to begin building by 2015).
Such intense lasers are better suited to power-beaming because the cells that collect the laser light can be smaller.
The challenge is to collect the dim light so as to gauge how many traveling cells are present.
The modified liposomes were then added to the membranes of eye cancer cells - and sure enough the cells were found to respond to light.
Theoretically, Filler said, if some fraction of the LED were projected backwards into the system, embedded solar cells could capture some of that light as well.
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