Enhanced metal ion release rate for anti-microbial applications

Details Enhanced metal ion release rate for anti-microbial applications Enhanced metal ion release rate for anti-microbial applications

B - Operations, Transporting

05

D

B05D 5/00 (2006.01) D02G 3/00 (2006.01)

Patent

CA 2564919

A method for enhancing the metal ion release rate of a substrate having a coating of a metal thereon. The method includes the steps of forming the metal~coated substrate and then subjecting the metal-coated substrate to a step that removes portions of the metal coating to form at least one notch in the metal coating, thereby increasing the surface area of the metal coating. The increased surface area enhances the metal ion release rate of the substrate. The metal may be silver. A silver-coated substrate may be used in the formation of medical products having increased antimicrobial and/or anti- fungal characteristics.

La présente invention concerne un procédé permettant à relever le taux d'ions de métal dégagés d'un substrat recouvert d'un métal. Le procédé comporte plusieurs opérations. On commence par réaliser un substrat recouvert de métal, et on le soumet à une opération d'enlèvement partiel de la couverture métallique de façon à former au moins une encoche dans la couverture de métal, et ainsi à augmenter la superficie de la couverture de métal. L'augmentation de la superficie améliore le taux d'ions de métal dégagés du substrat. Le métal peut être l'argent. On peut utiliser un substrat recouvert d'argent pour la réalisation de produits médicaux présentant de meilleures caractéristiques antimicrobiennes et/ou antifongiques.

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