Sentences with phrase «light reactive molecules»

The technique consists of attaching ultraviolet light reactive molecules to reinforcing agents like carbon nanotubes.

Not exact matches

The damage sensors lit up first, with the hydrogen peroxide marker following moments later, suggesting that the reactive oxygen molecules are indeed a sign, and not a cause, of injury.

Photodynamic therapy (PDT), involves the use of chemicals called photosensitizers that are activated by exposure to specific wavelengths of light to release reactive molecules that can damage nearby cells.

This fact makes vacuum UV light extremely useful for industrial applications from sterilizing medical devices to cleaning semiconductor substrates because when it strikes oxygen - containing molecules on a surface, it generates highly reactive oxygen radicals, which can completely destroy any microbes contaminating that surface.

It's thought that this damage happens when photons (light particles) create free radicals, which are highly reactive molecules that can «poison» cells and kill them, Van Gelder said.

That light is absorbed by the chlorine - based molecules, which then excite nearby oxygen molecules, creating a highly reactive form of oxygen, known as singlet oxygen, that rips apart nearby biomolecules and kills the tumor cell.

On Pluto, ultraviolet light from the sun breaks apart gas molecules like nitrogen and methane to create reactive ions.

Uroporphyrinogen I is a reduced porphyrin that can undergo spontaneous oxidation to form the potent photosensitizer uroporphyrin I. Intense light exposure causes porphyrin molecules to generate reactive oxygen species (ROS).

In the experiment, researchers coated the metallic particles with a layer of reactive molecules and focused the ALS - produced infrared light onto the tiny tip (25 nanometers in its diameter) of the atomic force microscope.