PHOTOLYTIC RELEASE OF BIOCIDES FOR HIGH EFFICIENCY DECONTAMINATION THROUGH PHOSPHOLIPID NANOPARTICLES
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United States of America Patent
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Issued Date -
Sep 16, 2010
app pub date -
Feb 23, 2009
filing date -
Feb 23, 2009
priority date (Note) -
Abandoned
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Abstract
Biocide-filled liposome vesicles containing one or more photosensitizers are located in one or more areas for potential sterilization. Upon receiving one or more signals, the liposome vesicles are irradiated with light causing the membrane of the vesicles to break, thereby releasing the biocidal agent or agents which are distributed throughout the area. Preferred biocidal agents are hydrogen peroxide, benzalkonium chloride, and photo-oxidizing nanoparticles such as titanium dioxide, iron oxide, and certain commercially available biocides such as Ucarcide 25 and Ucarcide 50 from Dow Chemical Co.In an alternative embodiment, upon receiving a signal, the liposome vesicles are distributed throughout the area and then irradiated with light.
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