Structure for preventing adhesion of microorganisms and method of manufacturing the same

Abstract

The present invention relates to a structure for preventing the adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, and a method of manufacturing the same. The structure for preventing the adhesion of microorganisms includes: a nano-structure configured to include a plurality of protruding structures each having a sharp end, and made of a resin composition; and a plurality of nano-metal particles configured to be distributed inside the nano-structure. A method of manufacturing a structure for preventing adhesion of microorganisms includes preparing a liquid resin; mixing the liquid resin with nano-metal particles; depositing the liquid resin on a substrate; pressing the liquid resin with a master template on which a pattern corresponding to a plurality of protruding structures is formed; and setting or curing the liquid resin.

1 . A structure for preventing adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, the structure comprising:
 a nano-structure layer including a plurality of patterned protrusions, wherein the patterned protrusions form a top surface of the nano-structure layer and prevent adhesion of microorganisms, and the nano-structure layer is made of a resin composition; and   a plurality of nano-metal particles distributed in the nano-structure layer;   wherein the distribution of the nano-metal particles is controlled by means of an electric field so that density of the nano-metal particles is highest at the top surface of the nano-structure layer and decreases in a direction inward from the top surface of the nano-structure layer.   
     
     
         2 . The structure of  claim 1 , wherein the patterned protrusions are a plurality of tip-shaped structures each having a sharp end. 
     
     
         3 . The structure of  claim 1 , wherein the patterned protrusions are one of sinusoidal structures, column-shaped structures, and inverted U-shaped structures. 
     
     
         4 . The structure of  claim 1 , wherein the plurality of nano-metal particles is made of one or more metals selected from the group consisting of copper Cu, silver Ag, platinum Pt, gold Au, zinc Zn, and palladium Pd. 
     
     
         5 . A structure for preventing adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, the structure comprising:
 a nano-structure layer including a plurality of patterned protrusions, wherein the patterned protrusions form a top surface of the nano-structure layer and prevent adhesion of microorganisms, and the nano-structure layer is made of a resin composition; and   a plurality of nano-metal particles distributed in the nano-structure layer,   wherein the plurality of nano-metal particles is distributed on the top surface of the nano-structure layer.   
     
     
         6 . (canceled) 
     
     
         7 . A method of manufacturing a structure for preventing adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, the method comprising:
 preparing a liquid resin;   mixing the liquid resin with nano-metal particles;   depositing the liquid resin on a substrate;   pressing the liquid resin with a master template on which a pattern corresponding to a plurality of protruding structures is formed;   controlling distribution of the nano-metal particles by applying an electric field to the master template; and   setting or curing the liquid resin.   
     
     
         8 . The method of  claim 7 , further comprising, after setting or curing the liquid resin, performing a post process so that the nano-metal particles are exposed out of a surface of the set or cured resin.