The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
Jan. 02, 2009
Wim DE Windt, Sint-Amandsberg, BE;
Mariane Van Wambeke, Kluisbergen, BE;
Willy Verstraete, Wondelgem, BE;
Nico Boon, Balegem, BE;
Wim De Windt, Sint-Amandsberg, BE;
Mariane Van Wambeke, Kluisbergen, BE;
Willy Verstraete, Wondelgem, BE;
Nico Boon, Balegem, BE;
Janssen Pharmaceutica N.V., Beerse, BE;
Abstract
Silver nanoparticles associated with 20 to 80% by weight of a biocomponent of the genus, said silver nanoparticles having a ratio of the average particle size to the specific surface area (BET) of from 0.015 to 0.15 nm/m/g; a method for producing silver nanoparticles, comprising the step of incubating bacteria of the genuswith an aqueous solution comprising at least 4 mM of a silver salt in the presence of ammonia and an alkali metal hydroxide until a biomass of bacteria containing Agsilver nanoparticles is formed; and optionally a further step of extracting said Agsilver nanoparticles from said biomass by means of concentrated alkali metal hydroxide or concentrated inorganic acid or enzymes; an anti-microbial composition comprising an effective amount of said silver nanoparticles; use of said silver nanoparticles for the manufacturing of an article or a composition with anti-microbial activity; a method for manufacturing an article or a composition with anti-microbial activity, comprising dispersing or impregnating said silver nanoparticles into said article or composition; and an article with anti-microbial property having said silver nanoparticles dispersed therein.