WO2019216597A1

WO2019216597A1 - Transition metal organic framework having antibacterial properties

Info

Publication number: WO2019216597A1
Application number: PCT/KR2019/005265
Authority: WO
Inventors: 김지현; 홍상현; 이서진
Original assignee: 엘지전자 주식회사
Priority date: 2018-05-08
Filing date: 2019-05-02
Publication date: 2019-11-14

Abstract

The present invention relates to a transition metal organic framework, comprising: a transition metal oxide having antibacterial or antifungal properties; and an organic compound having at least one hydrophilic functional group, wherein the organic compound is bound to the transition metal oxide to surround the transition metal oxide and the hydrophilic functional group is placed toward the outside of the transition metal organic framework.

Description

Transition Metal Organic Structure with Antimicrobial Activity

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to transition metal organic frameworks (t-MOFs) having antimicrobial properties, and more particularly to transition metal organic structures formed to prevent the formation of odor-causing substances.

Microorganisms such as bacteria and fungi exist throughout life. In particular, the growth of bacteria and fungi may occur actively on surfaces exposed to moist environment. As a result, bacteria and fungi multiply on the surface to produce substances that cause an unpleasant odor.

To solve this problem, the moisture can be removed immediately to prevent the growth of bacteria and fungi. However, creating a dehumidified environment can be difficult. For example, it may be difficult to remove moisture such as condensate formed on the surface of the heat exchanger generated by the operation of the heat exchanger, which is a core component of an air conditioner, a refrigerator and a clothes dryer. In addition, there are also surfaces that are difficult to avoid, such as washing machines that are constantly exposed to moisture.

Thus, in order to remove the unpleasant odor generated by bacteria and mold, a masking technique is used to hide unpleasant odors by mixing aromatic substances. However, mixing different scents requires continuous input of fragrant substances, and the emotions that individuals feel about fragrant substances are subjective, so the effects that can be obtained through masking techniques are limited. In addition, the masking technique has a disadvantage in that it is not possible to remove an unpleasant odor fundamentally.

Therefore, the inclusion of the transition metal oxide in the base material can impart antimicrobial and catalytic properties to the base material. Since the transition metal oxide meets moisture in the air and quickly changes the surface of the base material to acid, it has an antibacterial property that inhibits the growth of bacteria and destroys the bacteria. Transition metal oxides also have the catalytic properties of adsorbing and oxidizing some malodorous substances into odorless compounds.

When the base metal oxide is used to provide antimicrobial and catalytic properties to the base material, the transition metal oxide should be in the form of particles having a relatively large surface area in order to maintain material properties such as polymers forming the coating layer without losing them. For example, microparticles ranging from several micrometers to several hundred nanometers in size.

As an example of the transition metal oxide in European Patent Publication No. 3,082,415 A1 (October 26, 2016), a composite material formed of a molybdenum-containing inorganic compound was applied to the surface of a product to inhibit the growth of bacteria and fungi. That is, the antimicrobial effect of the composite material formed of the molybdenum-containing inorganic compound has prevented the formation of an unpleasant odor of bacteria and fungi.

However, since the water solubility of the molybdenum-containing inorganic compound is very low as disclosed in the prior literature, there was a limit in forming the base material including the inorganic compound. That is, the molybdenum-containing inorganic compound having a conventional antimicrobial was present in the form of a suspension or dispersion which is dispersed in a water-soluble coating material. Accordingly, the coating material containing the inorganic compound has a problem that precipitation occurs over time or entanglement occurs on the base material and thus cannot be uniformly applied. Accordingly, the present invention provides a transition metal organic structure containing the inorganic compound and formed to be uniformly distributed in the base material.

It is to propose a transition metal organic structure having a uniform distribution on the surface of the base material which antibacterial or antifungal properties of the present invention is required.

Another object of the present invention is to propose a variety of materials having a uniform distribution of the transition metal organic structure having antibacterial or antifungal properties.

The transition metal organic structure having the antibacterial or antifungal properties of the present invention may be disclosed as a transition metal oxide and an organic compound combined with the transition metal oxide. An organic compound including a hydrophilic functional group may be combined with a transition metal oxide to uniformly distribute the transition metal organic structure in the base material including the hydrophilic polymer. Thus, water is supplied to the transition metal organic structure to form an acidic substance or active oxygen. This can reduce odors and impart antibacterial or antifungal properties to the base material.

In addition, the transition metal organic structure according to the present invention is included in the coating layer of the product requiring antimicrobial or antifungal properties, the fiber of the filter requiring antimicrobial or antifungal properties, or the injection molding constituting the product requiring the antimicrobial or antifungal properties. This can provide a variety of materials with improved antibacterial or antifungal properties.

Specifically, in the transition metal organic structure, the transition metal oxide having antibacterial or antifungal properties; And an organic compound bonded to the transition metal oxide, wherein the organic compound may be formed to surround the transition metal oxide with a coordinative bond to the transition metal oxide. The organic compound may include a ligand portion which forms a coordination bond with the transition metal oxide; And an organic brush at the end of the ligand portion, wherein the organic brush includes a hydrophilic functional group, and the hydrophilic functional group is disposed outside the transition metal organic structure.

In an embodiment, the metal of the transition metal oxide includes at least one selected from the group consisting of W, Mo, La, Ti, Si, Zr, Re, Hf, Ag, Cu, Sn, Nb, Al, and Va. It features.

In an embodiment, the hydrophilic functional group of the organic brush is any one of a carboxyl group (R-COOH), a ketone group (R-CO-R), or an amine group (R-NH2, R2-NH, R3-N, RN = R). Characterized in that it comprises one or more.

In an embodiment, the organic brush is characterized in that it comprises a cyclic hydrocarbon.

In an embodiment, the organic brush includes at least one selected from the group consisting of the following structures.

In an embodiment, the content of the transition metal oxide is characterized in that 0.1 to 5 wt% of the transition metal organic structure.

In an embodiment, the average size of the transition metal organic structure is characterized in that 20 to 700 nm.

In addition, the present invention discloses a hydrophilic coating layer comprising the transition metal organic structure described above.

In an embodiment, the hydrophilic coating layer is polyvinyl alcohol, polyoxyethylene glycol, polysulfonic acid, polyacrylic acid, polymethacrylic acid, polymethacrylic acid, poly It includes at least one selected from the group consisting of propylene glycol (polypropylene glycol).

In an embodiment, the average thickness of the hydrophilic coating layer is characterized in that 700 to 2000 nm.

In an embodiment, the content of the transition metal organic structure is characterized in that 1 to 5 wt% of the hydrophilic coating layer.

The present invention also discloses a fiber comprising the transition metal organic structure described above.

Furthermore, the present invention discloses an injection molding comprising the transition metal organic structure described above.

According to the transition metal organic structure according to the present invention, the organic compound comprising a hydrophilic functional group having affinity with the water-soluble hydrophilic polymer used in forming the coating layer of the base material is combined with the transition metal oxide, the transition metal organic structure is added to the coating layer of the base material It can be distributed uniformly. Thus, water is supplied to the transition metal organic structure to form an acidic substance or active oxygen. This has the effect of reducing odor and imparting antibacterial or antifungal properties to the base material.

In addition, the transition metal organic structure according to the present invention is included in the coating layer of the product requiring antimicrobial or antifungal properties, the fiber of the filter requiring antimicrobial or antifungal properties, or the injection molding constituting the product requiring the antimicrobial or antifungal properties. There is an advantage that can provide a variety of materials with improved antibacterial or antifungal properties.

Specifically, since the transition metal organic structure according to the present invention does not elute from the coating layer because the organic compound is combined with the transition metal oxide to form a strong bond with the water-soluble hydrophilic polymer forming the coating layer of the base material, the base material is continuously antibacterial or It is effective in maintaining antifungal properties.

In addition, since the transition metal organic structure according to the present invention is formed of a bond of the organic compound to the transition metal oxide, the transition metal organic structure can be uniformly distributed in the base material without agglomeration is improved.

In addition, since the transition metal organic structure according to the present invention has an average size of various transition metal organic structures according to the purpose of easy size control, antibacterial or anti-fungal characteristics can be maximized.

1 is a conceptual diagram of a transition metal organic structure of the present invention.

2 is a conceptual diagram of a hydrophilic coating layer including the transition metal organic structure of the present invention.

Figure 3 is an electron microscope image of a hydrophilic coating layer comprising a hydrophilic coating layer and a transition metal organic structure of one embodiment of the comparative example of the present invention.

4 is a conceptual diagram of a fiber including a transition metal organic structure according to another embodiment of the present invention.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

1 is a conceptual diagram of a transition metal organic structure 100 of the present invention.

The present invention relates to a transition metal organic structure 100 having antibacterial or antifungal properties.

In one embodiment of the present invention, the transition metal organic structure 100 may include a transition metal oxide 110 and an organic compound 120. The transition metal oxide 110 may have antibacterial or antifungal properties. In detail, the transition metal oxide 110 may include at least one selected from the group consisting of W, Mo, La, Ti, Si, Zr, Re, Hf, Ag, Cu, Sn, Nb, Al, and Va. .

Further, the transition metal oxide 110 is a substance that reacts with moisture to form active oxygen to reduce odor and exhibits antibacterial or antifungal properties. Accordingly, the transition metal oxide 110 may inhibit the generation of bacteria and fungi in a moisture-rich environment to suppress the generation of substances causing odors such as nitrogen compounds produced by the metabolism of bacteria and fungi. In addition, the transition metal oxide 110 may meet the moisture in the atmosphere to change the surface of the transition metal oxide 110 to acidic to inhibit or destroy the growth of bacteria or fungi.

In one embodiment, zinc molybdate (ZnMoO ₄ ), which is a kind of transition metal oxide including molybdenum (Mo), may perform an antibacterial action, and is particularly effective for the antibacterial activity of Escherichia coli. In addition, the transition metal oxide containing tungsten (W) has an excellent antibacterial effect against Staphylococcus aureus, and also has excellent antifungal properties.

Accordingly, in the transition metal organic structure 100 of the present invention, at least one selected from the group consisting of W, Mo, La, Ti, Si, Zr, Re, Hf, Ag, Cu, Sn, Nb, Al, and Va described above. Including the transition metal oxide 110 may inhibit the occurrence of various bacteria or fungi. That is, since the transition metal organic structure 100 of the present invention inhibits the generation of bacteria and fungi, the substance causing the odor generated during the metabolic process of bacteria and fungi can be suppressed at the source.

The organic compound 120 has at least one hydrophilic functional group and may be coupled to the transition metal oxide 110. In other words, the organic compound 120 may be formed to surround the transition metal oxide 120. The organic compound 120 may form the transition metal organic structure 100 in a form surrounding the transition metal oxide 110, and thus the transition metal organic structure 100 may be formed on the surface or inside of a material to which antimicrobial or antifungal properties are given. Can be present in a stable manner.

The combination of the organic compound 120 and the transition metal oxide 110 may be formed of a coordinate covalent bond. That is, the organic compound 120 may include a ligand portion that forms a bond with the transition metal oxide 110. Herein, the ligand portion is not limited as long as it is a molecular group or an ion having a non-covalent electron pair capable of forming a coordinating bond with the transition metal oxide 110.

In addition, the aforementioned hydrophilic functional group may be included at the terminal of the ligand portion forming a bond with the transition metal oxide 110. Specifically, the hydrophilic functional group is a compound disposed at the terminal portion of the ligand portion, which is referred to as an organic brush in the present invention.

In one embodiment, the organic compound 120 may exist in a form in which an organic brush is formed in a ligand portion that can easily form a coordination bond with the transition metal oxide 110. In other words, the transition metal organic structure 100 is formed in a form in which the organic compound 120 is surrounded by the transition metal oxide 110, and the ligand portion of the organic compound 120 forms a bond with the transition metal oxide 110. . On the other hand, the organic material 120 may be present in the form of an organic brush including a hydrophilic functional group by a covalent bond at the ligand end.

In other words, the organic compound 120 may include a ligand portion forming a coordination bond with the transition metal oxide 110 and an organic brush at an end of the ligand portion. Furthermore, the organic brush may include a hydrophilic functional group, and the hydrophilic functional group may be disposed outside the transition metal organic structure 100.

Further, the transition metal organic structure 100 in which the organic brush itself of the organic compound 120 serves as a ligand portion to form a coordination bond with the transition metal oxide 110 is also possible.

By the organic brush included in the organic compound 120, the transition metal oxide 120 can be stably present on the surface or inside of the material to which the antimicrobial or antifungal properties having hydrophilicity are given.

Further, the hydrophilic functional group of the organic brush of the organic compound 120 is a carboxyl group (R-COOH), a ketone group (R-CO-R) or an amine group (R-NH ₂ , R ₂ -NH, R ₃ -N, RN = R). Therefore, the hydrophilic functional groups and the hydrophilic functional groups of the organic compound 120 on the surface or inside of the material to which the antimicrobial or antifungal properties are given may form a hydrogen bond with each other. Therefore, the transition metal organic structure 100 may be present stably because it forms a strong bond on the surface or inside of the material.

In addition, the hydrophilic functional group of the organic brush of the organic compound 120 may be disposed outside the transition metal organic structure 100 of the present invention. Therefore, the transition metal organic structure 100 may form hydrogen bonds more easily with hydrophilic functional groups on the surface or inside of a material to which antimicrobial or antifungal properties are given. Therefore, the transition metal organic structure 100 may be present stably by forming a hydrogen bond on the surface or inside of the material.

In addition, the organic brush of the organic compound 120 may include a cyclic hydrocarbon. Thus, when the organic compound 120 forms a bond with the transition metal oxide 110, a structure is formed that constantly surrounds the transition metal oxide 120 due to the steric properties of the organic compound 120 itself.

In one embodiment, the organic brush of the organic compound 120 may include at least one selected from the group consisting of the following structures.

The content of the transition metal oxide 110 in the transition metal organic structure 100 may be 0.1 to 5 wt%. When the content of the transition metal oxide 110 is less than 0.1 wt% of the entire transition metal organic structure 100, the transition metal organic structure 100 may have sufficient antibacterial or antifungal properties due to the lack of the transition metal oxide 110. There is a problem. That is, when the content of the transition metal oxide 110 is less than 0.1 wt% of the entire transition metal organic structure 100, since the content of the transition metal oxide 110 is not sufficient, it does not form sufficient active oxygen, so that bacteria and fungi There is a problem that the characteristics that inhibit the occurrence is reduced.

On the other hand, when the transition metal oxide 110 exceeds 5 wt% in the transition metal organic structure 100, there is a problem that the transition metal oxide 110 and the organic compound 120 do not exist evenly. Specifically, when the total content of the transition metal oxide 110 exceeds 5 wt% of the transition metal organic structure 100, there is a problem in that the transition metal oxide 110 is aggregated and separated.

The average size of the transition metal organic structure 100 may be 20 to 700 nm. When the average size of the transition metal organic structure 100 is less than 20 nm, excessive moisture may be attached to the transition metal organic structure 100, so that natural drainage may be difficult. If natural drainage is not made, bacteria or fungi are more easily propagated than otherwise, and odor generating substances may be formed in a large amount.

On the other hand, if the average size of the transition metal organic structure 100 exceeds 700 nm, there is a problem that the antimicrobial or anti-fungal properties may be reduced by reducing the surface area of the transition metal organic structure 100.

2 is a conceptual diagram of a hydrophilic coating layer 30 including the transition metal organic structure 100 of the present invention.

The hydrophilic coating layer 30 including the transition metal organic structure 100 may be present in a form laminated on the surface of the base material 10. Furthermore, the hydrophilic coating layer 30 may include a transition metal organic structure 100 to react with moisture. Thus, the odor is reduced due to the active oxygen generated by the transition metal organic structure 100, it can impart antibacterial or anti-fungal properties to the base material (10).

The base material 10 may be a variety of products formed from injection molding. In one embodiment, the base material 10 may include a product in which an odor-causing substance may be generated or present by being exposed to a moisture-rich environment such as an air conditioner, a refrigerator, and a heat exchanger which is a core part of a clothes dryer.

In order to stably form the hydrophilic coating layer 30 on the surface of the base material 10, an intermediate layer 20 may be additionally disposed between the base material 10 and the hydrophilic coating layer 30. The intermediate layer 20 may be formed of an organic material capable of forming hydrogen bonds with the hydrophilic coating layer 30 to improve adhesion between the base material 10 and the hydrophilic coating layer 30. In addition, in another embodiment, when the base material 10 is formed of aluminum, the intermediate layer 20 may be a layer rich in hydroxyl group (−OH) by oxidizing the surface of the base material.

The hydrophilic coating layer 30 may inhibit the growth of bacteria or mold to prevent the generation of substances causing odors. In addition, it is possible to remove the substance causing the odor by the active oxygen generated by the reaction of the water and the transition metal organic structure (100). In particular, it can be applied to products operating in a rich environment to remove odors by decomposing substances that generate free radicals and cause odors.

In detail, microorganisms such as bacteria and fungi can be easily reproduced by condensate generated while the heat exchanger operates on the surface of the heat exchanger. Accordingly, a substance that causes an odor, such as a nitrogen compound generated by metabolism of bacteria and mold, may be generated, and the substance causing an odor may be removed by the hydrophilic coating layer 30.

In addition, the hydrophilic coating layer 30 may be disposed on a surface which is difficult to avoid the moisture environment, such as a washing machine continuously exposed to moisture, to remove substances causing odors.

Hydrophilic coating layer 30 is polyvinyl alcohol, polyoxyethylene glycol, polysulfonic acid, polyacrylic acid, polymethacrylic acid, polymethacrylic acid, polypropylene glycol ( polypropylene glycol) may include at least one selected from the group consisting of:

When the hydrophilic coating layer 30 includes polyvinyl alcohol, a hard film may be formed by performing a vulcanization process to include sulfur.

Furthermore, the average thickness of the hydrophilic coating layer 30 may be 700 to 2000 nm. When the average thickness of the hydrophilic coating layer 30 is less than 700 nm, the transition metal organic structure 100 may not be sufficiently included, and thus the substance causing the odor may not be sufficiently removed. On the other hand, when the average thickness of the hydrophilic coating layer 30 exceeds 2000 nm, it can reduce the performance of the product when applied to the surface of the product. For example, when formed on the surface of the heat exchanger, the heat exchange performance may decrease when the average thickness of the hydrophilic coating layer 30 exceeds 2000 nm.

In addition, the total content of the transition metal organic structure 100 of the hydrophilic coating layer 30 may be 1 to 5 wt% of the hydrophilic coating layer 30. When the total content of the transition metal organic structure 100 is less than 1 wt% of the hydrophilic coating layer 30, the concentration of the transition metal organic structure 100 included in the hydrophilic coating layer 30 is lowered, so that the substance causing the odor is removed. Cannot be performed effectively. On the other hand, when the total content of the transition metal organic structure 100 exceeds 5 wt% of the hydrophilic coating layer 30 may cause peeling of the hydrophilic coating layer 30, the hardness of the hydrophilic coating layer 30 is also lowered wear resistance Scratchability may be lowered.

3A is a comparative example of a hydrophilic coating layer in which only the transition metal oxide described above is present. In other words, the organic compound combined with the transition metal oxide is excluded in the hydrophilic coating layer of FIG. Thus, it can be seen that the distribution of the transition metal oxide present in the hydrophilic coating layer is low.

On the other hand, Figure 3 (b) and (c) includes the above-described transition metal organic structure in the hydrophilic coating layer. In other words, the hydrophilic coating layer of FIGS. 3B and 3C includes a transition metal oxide and an organic compound bonded to the transition metal oxide. Further, the organic compound is formed to surround the transition metal oxide by coordinating bond with the transition metal oxide.

Referring to the above description of the transition metal organic structure, the ligand portion of the organic compound coordinates the transition metal oxide, and the organic brush having a hydrophilic functional group provided at the end of the ligand portion is disposed outside the transition metal organic structure It may be present stably by forming a hydrogen bond on the surface or inside of the hydrophilic coating layer. Accordingly, the hydrophilic coating layer of FIGS. 3 (b) and (c) may include a transition metal organic structure having a uniform dispersion as compared to the transition metal oxide in the hydrophilic coating layer of FIG. Thus, by including the transition metal organic structure of the present invention in the hydrophilic coating layer can be improved the effect of preventing the generation of odor-causing substances.

4 is a conceptual diagram of a fiber 1000 including a transition metal organic structure according to another embodiment of the present invention.

Referring to FIG. 4, it is also possible to prepare the fiber 1000 including the transition metal organic structure by mixing the above-described transition metal organic structure in the form of a powder during extrusion. The fiber 1000 may include a first fiber 1100 and a second fiber 1200.

The first fiber 1100 may include a first transition metal organic structure in a powder form, and the second fiber 1200 may include a second transition metal organic structure in a powder form. In other words, the first fiber 1100 and the second fiber 1200 may have antibacterial and antifungal properties against various bacteria and fungi, including transition metal organic structures having different compositions. Here, the first transition metal organic structure and the second transition metal organic structure may be any one of the above-described transition metal organic structures having different compositions.

Furthermore, the content of the transition metal organic structure included in the fiber 1000 may range from 0.5 to 5 wt%. The fiber 1000 containing less than 0.5 wt% of the transition metal organic structure may not sufficiently exhibit antibacterial or antifungal properties due to the low concentration of the transition metal organic structure. On the other hand, when the content of the transition metal organic structure is included in excess of 5 wt%, the miscibility between the polymer mainly constituting the fiber 1000 and the transition metal organic structure may be inferior. Thus, there is a problem that the transition metal organic structure is incompletely mixed and can be separated from the fiber 1000 over time.

In addition, the average size of the transition metal organic structure mixed in the fiber 1000 may be in the range of 20 to 150 nm. In the average size range of the transition metal organic structure, it can express sufficient antibacterial or antifungal properties. In addition, in the average size range of the transition metal organic structure, the fiber can be molded without breaking the fiber during extrusion.

On the other hand, as the polymer mainly comprising the first fiber 1100 and the second fiber 1200, the hydrophilic functional groups of the first transition metal organic structure and the second transition metal organic structure in the form of a powder may form a hydrogen bond with each other. From the group consisting of vinyl alcohol, polyoxyethylene glycol, polysulfonic acid, polyacrylic acid, polymethacrylic acid, polypropylene glycol It may include at least one selected.

Furthermore, the fiber 1000 including the transition metal organic structure may be applied to a filter which is one of the components constituting the air conditioner and the clothes treating apparatus to prevent the generation of an odor-causing substance by having antibacterial or anti-mildew characteristics. .

As described above, the transition metal organic structure of the present invention may be present in the form of particles in the hydrophilic coating layer and the fiber to have antibacterial or antifungal properties. Furthermore, in the other embodiments, the transition metal organic structure is also included in the injection molding itself, and thus it is also possible to have antibacterial or antifungal properties.

Example 1 Preparation of Transition Metal Organic Structure

The transition metal organic structure is in accordance with the above description, and in detail, 70-wt% nitric acid solution containing 20 wt% of phthaleic acid (-COOH) containing α-MoO3 in an aqueous solution of pH 14 and carboxyl group (-COOH) is slowly added to the particles. It can be prepared by precipitation in form.

Example 2 Preparation of Transition Metal Organic Structure

ZnMoO4 powder is dissolved in 10 wt% concentration in an aqueous solution in which 2 wt% of acrylic water-soluble polymer (Synthro W578) is dissolved. After stirring, the ligand is completely dissolved and dried to prepare a transition metal organic structure of ZnMoO4 as a metal oxide.

It will be apparent to those skilled in the art that the transition metal organic structure described above is not limited to the configuration of the embodiments described above, but may be embodied in other specific forms without departing from the essential features of the present invention.

In addition, the above detailed description should not be interpreted as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

Claims

In transition metal organic structure,

Transition metal oxides having antibacterial or antifungal properties; And

It includes an organic compound combined with the transition metal oxide,

The organic compound is formed to surround the transition metal oxide by coordination bond to the transition metal oxide,

The organic compound,

A ligand portion forming a coordination bond with the transition metal oxide; And

An organic brush is provided at the end of the ligand portion,

The organic brush includes a hydrophilic functional group, wherein the hydrophilic functional group is a transition metal organic structure, characterized in that disposed outside the transition metal organic structure.
The method of claim 1,

The transition metal oxide metal is at least one selected from the group consisting of W, Mo, La, Ti, Si, Zr, Re, Hf, Ag, Cu, Sn, Nb, Al and Va Organic structures.
The method of claim 1,

The hydrophilic functional group of the organic brush is any one or more of a carboxyl group (R-COOH), a ketone group (R-CO-R) or an amine group (R-NH 2 , R 2 -NH, R 3 -N, RN = R) Transition metal organic structure comprising a.
The method of claim 3,

The organic brush is a transition metal organic structure, characterized in that it comprises a cyclic hydrocarbon.
The method of claim 4, wherein

The organic brush includes at least one selected from the group consisting of a transition metal organic structure.
The method of claim 1,

The content of the transition metal oxide is a transition metal organic structure, characterized in that 0.1 to 5 wt% of the transition metal organic structure.
The method of claim 1,

The transition metal organic structure, characterized in that the average size of the transition metal organic structure is 20 to 700 nm.
A hydrophilic coating layer comprising the transition metal organic structure of any one of claims 1 to 7.
The method of claim 8,

The hydrophilic coating layer is polyvinyl alcohol, polyoxyethylene glycol, polysulfonic acid, polyacrylic acid, polymethacrylic acid, polypropylene glycol Hydrophilic coating layer characterized in that it comprises at least one selected from the group consisting of.
The method of claim 8,

Hydrophilic coating layer, characterized in that the average thickness of the hydrophilic coating layer is 700 to 2000 nm.
The method of claim 8,

The amount of the transition metal organic structure is a hydrophilic coating layer, characterized in that 1 to 5 wt% of the hydrophilic coating layer.
Fiber comprising the transition metal organic structure of any one of claims 1 to 7.
The method of claim 12,

The content of the transition metal organic structure is a fiber, characterized in that 0.5 to 5 wt% of the fiber.
The method of claim 12,

Fibers, characterized in that the average size of the transition metal organic structure is 20 to 150 nm.
The method of claim 12,

The fiber is polyvinyl alcohol, polyoxyethylene glycol, polysulfonic acid, polyacrylic acid, polymethacrylic acid, polypropylene glycol Fiber comprising at least one selected from the group consisting of.
An injection molding comprising the transition metal organic structure of any one of claims 1 to 7.