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

a technology of microorganisms and structures, applied in the direction of biocide, paints, biocides, etc., can solve the problems of high cost or complex process, limited sterilization capability of nano-metal particles, and high manufacturing cost, so as to prevent the adhesion, and prevent the adhesion of microorganisms

Inactive Publication Date: 2019-06-20
IND ACADEMIC CORP FOUND YONSEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a structure that prevents the adhesion of microorganisms, which is improved over conventional structures. The structure includes a surface with tiny protruding structures made of nano-metal particles embedded in a liquid resin. The method for manufacturing the structure includes preparing a liquid resin, mixing it with nano-metal particles, depositing the resin onto a substrate, pressing it with a master template, and controlling the distribution of nano-metal particles by applying an electric field. The structure can economically and conveniently prevent the adhesion of microorganisms.

Problems solved by technology

Although various technologies for preventing microorganisms from adhering to and growing on a surface are known, as described above, the use of only the nano-metal particle coating or micro-structures having tips has limitations on achieving sufficient sterilization capability.
However, these conventional nano-metal particle coating technologies require a high cost or a complex process, which is a cause of an increase in manufacturing cost.

Method used

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

Examples

Experimental program
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first embodiment

[0031]FIG. 3 is a perspective view of a structure 100 for preventing the adhesion of microorganisms according to the present invention. The structure for preventing the adhesion of microorganisms includes a set of tip-shaped structures each having a sharp end. The tip-shaped structures are generally fabricated in pyramid or cone shapes.

[0032]Although the structure for preventing the adhesion of microorganisms is configured to include the set of tip-shaped structures each having a sharp end in order to maximize a sterilization effect in the embodiment shown in FIG. 3, the structure for preventing the adhesion of microorganisms is not limited to the tip-shaped structures as long as protruding structures capable of preventing microorganisms from adhering to a surface of an object are used. For example, a plurality of sinusoidal structures, column-shaped structures, and inverted U-shaped structures protruding from a plane can also prevent microorganisms from adhering to a surface of an ...

second embodiment

[0042]Generally, it is advantageous in a cost-effectiveness aspect that all the nano-metal particles 120 are concentrated on the surface of the nano-structure. Meanwhile, when the structure 100 for preventing the adhesion of microorganisms is used in an environment where it is difficult to replace the structure 100, nano-metal particles present on the surface of the nano-structure 130 may be lost due to abrasion or the like attributable to long-term use. In contrast, when a structure for preventing the adhesion of microorganisms, such as that is utilized, metal nano-particles 120 present inside the surface continue to perform a sterilization function in place of the lost nano-metal particles. In this case, although the metal nano-particles 120 may be uniformly distributed throughout the inside of the nano-structure 130, the density of the distribution of the metal nano-particles 120 may be highest on the surface of the nano-structure 130, and may decrease in a direction inward from...

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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.

Description

BACKGROUND1. Technical Field[0001]The present invention relates generally to a structure for preventing the adhesion of microorganisms and a method of manufacturing the same, and more specifically 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 by means of a micro- or nano-pattern and nano-metal particles, and a method of manufacturing the same.2. Description of the Related Art[0002]Generally, cases where microorganisms float and survive individually are few. In most cases, microorganisms form three-dimensional (3D) structures by means of polymer materials produced by them. Such a 3D structure is called a biofilm. A biofilm formed by microorganisms may be formed on almost all types of solid surfaces or the tissues of living creatures.[0003]FIG. 1 shows a process in which microorganisms adhere to a surface of a solid object and form a biofilm. When microorganisms floatin...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C09D5/16B29C59/02B29C43/56A01N59/20A01N59/16B08B17/06
CPCC09D5/1681B29C59/026B29C59/022B29C43/56A01N59/20A01N59/16B08B17/065B29K2105/162B29K2505/08B29C2043/568A01N25/34B29C2035/0827B29C2059/023B29C43/003B29C2043/026B29C43/021
Inventor KANG, SHINILLKIM, TAEKYUNGJUNG, MYUNGKI
Owner IND ACADEMIC CORP FOUND YONSEI UNIV