Sentences with phrase «photosensitive cells»

To further thwart nature's grand design, we wear sunglasses, preventing sunlight from entering the photosensitive cells in the retina which connects directly to the pituitary gland in the brain.

Built - in safeguards would prevent errant wireless signals or infrared light sources from triggering the LEDs or photosensitive cells.

But the eyes» only known photosensitive cells, the rods and cones, weren't doing the job.

Early eyes might have been nothing more than a patch of photosensitive cells that could tell an animal if it was in light or shadow.

Genetic diseases like retinitis pigmentosa destroy the photosensitive cells of the eye, the photoreceptors, but often leave intact the other cells in the retina: the bipolar cells that the photoreceptors normally talk to, and the ganglion cells that are the retina's output to the brain.

For them, Levin thinks «there's a kind of twitchy program going on» in which photosensitive cells — the researchers aren't sure which ones — bypass the brain and directly spur the muscles into movement.

Not exact matches

A CCD works like this: Light hits a tiny grid of photosensitive silicon cells, each which build a charge proportional to the intensity of the light hitting it.

People with normal color vision are known as trichromats because they possess these three kinds of photosensitive cone cells.

They further demonstrated that the cells — called intrinsically photosensitive retinal ganglion cells, or ipRGCs — could detect light.

That's because stem cells must be connected to existing neural networks — something that's not yet possible — whereas gene therapy simply involves making what is left in a diseased eye photosensitive.

«This technology allows for the labeling of just one circulating pathological cell among billions of other normal blood cells by ultrafast changing color of photosensitive proteins inside the cell in response to laser light,» explains Dr. Galanzha.

Green - light photons hold 240 kJ / mole of energy, which is enough to bend (but not break) the rhodopsin molecules in our retinas that trigger our photosensitive rod cells to fire.

For instance, the photosensitive - engineered cells were genetically assembled from four different species of bacteria.

The molecules used in the study are photosensitive and are used in organic solar cells; similar techniques could be used to study a wide variety of molecules.

However, the evidence from the past decade or so has revealed a third class of photoreceptor within the eye; intrinsically photosensitive retinal ganglion cells (ipRGCs), which express their own distinct opsin — melanopsin [6,7].

Originally developed for human use, it requires a photosensitive agent and light in order to attack and eliminate cancerous cells.