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:
Oct. 23, 2012
Filed:
Jun. 12, 2009
Ju Young Kim, Tallahassee, FL (US);
Ju Young Kim, Tallahassee, FL (US);
AG Biotech, LLC, Tallahassee, FL (US);
Abstract
There is provided a method for preparing a natural cellulose-OAg matrix having antimicrobial activity without leaching silver from the cellulose-OAg matrix. The method comprises: introducing silver ions (Ag) into a natural cellulose matrix by dipping the natural cellulose matrix in an AgCl-dissolved NHOH solution; and substituting hydrogen (H) of hydroxyl group (—OH) in natural cellulose with Agby drying the silver ion-infused natural cellulose matrix, thus to form a natural cotton-OAg complex. The cellulose-OAg matrix prepared in the method may be useful to continuously maintain antimicrobial activity by maintaining an effective concentration of silver, which does not have cytotoxicity to human skin, and chemically bonded silver is not leached during the rehydration due to the chemical bond between the silver and the cellulose matrix.