Photodynamic Therapy

Essay specific features

 

Issue:

Science

 

Written by:

Katherine B

 

Date added:

January 9, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

33 / 8996

 

Was viewed:

5925 times

 

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Essay content:

This is when particular wavelengths of light are used. For example, wavelengths of the visible violet light, (present in sunlight, in the range of 400-420nm) activates a porphyrin (porphyrins are deeply coloured natural dyes – known to exist in red-coloured leaves and in red blood cells. They generally have a deep purple, or dark colour) in Propionibacterium acnes which damages and ultimately kills the bacteria...
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They generally have a deep purple, or dark colour) in Propionibacterium acnes which damages and ultimately kills the bacteria. Or for psoriasis and eczema, where a particular ultraviolet wavelength suppresses the immune system and reduces the inflammatory response. Monochromatic infrared light emitted at about 890nm has even been shown effective through limited clinical studies, to help restore sensation and reduce pain in patients with neuropathies, and to improve circulation of non-healing ulcers, thereby increasing overall healing rate...
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