Structure for preventing adhesion of microorganisms

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.

What is claimed is: 
     
         1 . A structure for preventing microorganisms from adhering to and growing on a surface of an object, the structure comprising:
 a nano-structure layer made of a resin composition and containing patterned protrusions at a top portion thereof;   an exposed group of nano-metal particles located on and exposed out of a top surface of the patterned protrusions; and   an embedded group of nano-metal particles fully embedded inside the patterned protrusions,   wherein a density of the embedded group decreases in a direction inward the patterned protrusions and a density of the exposed group is higher than the density of the embedded group.   
     
     
         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).