Information om | Engelska ordet UV-A

Exempel på hur man kan använda UV-A i en mening

• Although many other types of lamp emit ultraviolet light with visible light, blacklights are essential when UV-A light without visible light is needed, particularly in observing fluorescence, the colored glow that many substances emit when exposed to UV.
• Phytochromes, cryptochromes, and phototropins are photochromic sensory receptors that restrict the photomorphogenic effect of light to the UV-A, UV-B, blue, and red portions of the electromagnetic spectrum.
• Corneal cross-linking involves application of riboflavin solution to the eye that is activated by illumination with UV-A light for approximately 30 or fewer minutes.
• UV-A is a major constituent of sunlight, can pass through glass, is relatively resistant to sunscreen and can cause light eruption without sunburn.
• CdO microparticles undergo bandgap excitation when exposed to UV-A light and is also selective in phenol photodegradation.
• Research conducted in the early 1890s demonstrated the superior germicidal efficacy of UV-C compared to UV-A and UV-B.
• The company has launched an HEP plasma grow-light for the horticulture and hydroponics markets that delivers the blue-light, UV-A and UV-B missing from most available grow-light spectrums in the market.
• It is administered either topically or orally in conjunction with UV-A (the least damaging form of ultraviolet light) for phototherapy treatment of vitiligo and hand eczema.
• The photosensitizing substances found in phototoxic plants belong to a class of chemical compounds called the furanocoumarins, which are activated by long-wavelength ultraviolet (UV-A) light.
• This study indicated that they could be used as photoprotectors absorbing both in the UV-B and UV-A.
• While longer UV-C wavelengths and UV-A can also cause damage, their effects are less severe than UV-B.

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