Oxygen-enhanced pathogen inactivation
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United States of America Patent
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Issued Date -
Jul 31, 2003
app pub date -
Dec 23, 2002
filing date -
Dec 28, 2001
priority date (Note) -
Abandoned
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Abstract
Methods for decontaminating fluids such as blood products, particularly platelets or red blood cells, are provided. The methods include mixing substantially non-toxic amounts of an endogenous photosensitizer such as riboflavin, or an endogenously-based derivative photosensitizer, with the fluid, increasing the dissolved oxygen content of the fluid to an amount sufficient to enhance a reaction of the photosensitizer in which singlet oxygen is formed and reduce competing reactions; and exposing the fluid to visible light photoradiation to activate the photosensitizer and substantially inactivate the pathogens. Blood products produced by the method, and systems for carrying out the method are also provided.
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