Patent ID: 8834917
Filing Date: 2014-09-16
Classification: A01N,A61K,C08L,D06M,D21H

Abstract:
1. A nanoparticle composition consisting essentially of a plurality of cellulose nanofibers embedded with nanosized material selected from the group consisting of elemental silver and silver coated iron oxide and a combination thereof, wherein said nanoparticle composition is prepared by a process comprising the steps of: a) mixing a silver salt solution with the cellulose nanofibers to obtain a mixture; or adding a silver salt solution to an admixture of the cellulose nanofibers and iron oxide nanoparticles to obtain a mixture; or soaking the nanofibers in the form of cellulose paper in a silver salt solution; and b) adding a reducing agent to any of the mixtures obtained in step (a) to obtain said nanoparticle composition; or washing the soaked cellulose paper of step (a) followed by soaking the washed cellulose paper in a solution of reducing agent to obtain said nanoparticle composition, wherein the reducing agent is hydrazanium hydroxide or sodium borohydride, or a combination thereof, and wherein the nanoparticle composition has antibacterial activity against