Light-activated antimicrobial and antiviral materials

Details Light-activated antimicrobial and antiviral materials Light-activated antimicrobial and antiviral materials

1997-02-19

1998-11-03

Dudash, Diana

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Particulate or unit-dosage-article base

427 23, 427 231, 4273899, 427391, 422 29, 602904, B05D 302, B05D 312, B05D 500

Patent

active

058305262

ABSTRACT:
A substrate such as a woven or nonwoven fabric bound with a light-activated dye alone or in combination with additional conventional antimicrobial agents. The substrate is impregnated with a light-activated non-leachable dye having antimicrobial and/or antiviral characteristics which can be imparted to the substrate. The dye is bound by a cationic or anionic binder such as a water soluble polymer or carrageenan. Upon exposure to normal light, the dye generates singlet oxygen that kills microorganisms and viruses.

REFERENCES:
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patent: 3630951 (1971-12-01), Rey et al.
patent: 3904373 (1975-09-01), Harper
patent: 3987797 (1976-10-01), Stephenson
patent: 4009313 (1977-02-01), Crawford et al.
patent: 4421826 (1983-12-01), Ohlson et al.
patent: 4910942 (1990-03-01), Dunn et al.
patent: 4951663 (1990-08-01), L'Esperance, Jr.
patent: 5053339 (1991-10-01), Patel
patent: 5340614 (1994-08-01), Perman et al.
patent: 5618732 (1997-04-01), Pease et al.

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