HYBRID TYPE FILTRATION STRUCTURE FOR FILTERING LIQUID

Abstract

A hybrid type filtration structure for filtering liquid includes a first active layer, a porous supporting layer and a permeable layer. The first active layer has a first nano pore inner wall of which a function group included compound is combined with. The porous supporting layer has a plurality of pores and is disposed under the first active layer. The permeable layer is disposed under the porous supporting layer. The porous supporting layer includes a plurality of lipid bilayers having membrane protein inside of the pore, a molecule of water selectively passes through the membrane protein. The first nano pore passes through the first active layer vertically. The first nano pore and the pore are connected with each other through which liquid flows.

Claims

1-28. (canceled)

29. A hybrid type filtration structure, comprising: a first active layer having a first nano pore inner wall of which a function group included compound is combined with; and a porous supporting layer having a plurality of pores and disposed under the first active layer, wherein the porous supporting layer comprises a plurality of lipid bilayers having membrane protein inside of the pore, a molecule of water selectively passing through the membrane protein, wherein the first nano pore passes through the first active layer vertically, and wherein the first nano pore and the pore are connected with each other through which liquid flows.

30. The hybrid type filtration structure of claim 29, further comprising a permeable layer disposed under the porous supporting layer.

31. The hybrid type filtration structure of claim 29, wherein the membrane protein is aquaporin.

32. The hybrid type filtration structure of claim 29, wherein the function group included compound comprises a function group having selectivity on the molecule of water.

33. The hybrid type filtration structure of claim 29, wherein the function group included compound comprises at least one function group of positive electric charge and negative electric charge.

34. The hybrid type filtration structure of claim 33 wherein the function group included compound comprises the function group in which a positive electric charge function group and a negative electric charge function group are disposed alternately.

35. The hybrid type filtration structure of claim 29, wherein the function group included compound comprises at least one function group of polar function group and nonpolar function group.

36. The hybrid type filtration structure of claim 35, wherein the function group included compound comprises the function group in which a polar function group and nonpolar function group are disposed alternately.

37. The hybrid type filtration structure of claim 29, wherein the function group included compound is a compound having a peptide function group.

38. The hybrid type filtration structure of claim 37, wherein the compound having a peptide function group comprises a singular arginine-phenylalanine unit or a plurality of arginine-phenylalanine units.

39. The hybrid type filtration structure of claim 29, wherein the porous supporting layer comprises one of polymer, anodic Aluminum Oxide, mono-chloroacetic acid.

40. The hybrid type filtration structure of claim 29, further comprising: a second active layer disposed under the porous supporting layer, and having a second nano pore inner wall of which a function group included compound is combined with, wherein the second nano pore passes through the second active layer vertically, and wherein the first nano pore, the pore and the second nano pore are connected with each other through which liquid flows.

41. The hybrid type filtration structure of claim 40, wherein the inner wall of the first nano pore has an active group with which the function group included compound is combined, and the inner wall of the second nano pore has an active group with which the function group included compound is combined.

42. The hybrid type filtration structure of claim 41, wherein the active group is one of NH.sub.2, —COOH and OH.

43. The hybrid type filtration structure of claim 40, wherein the porous supporting layer has a thickness between 1 μm and 100 μm, the pore has a diameter between 50 nm and 10 μm, the first nano pore has a diameter between 0.1 nm and 10 nm, and the second nano pore has a diameter between 0.1 nm and 10 nm.

44. The hybrid type filtration structure of claim 40, wherein the first active layer is one of polymer, copolymer, organic-inorganic composite material, inorganic material, metal material, carbon compound and mixture thereof, and the second active layer is one of polymer, copolymer, organic-inorganic composite material, inorganic material, metal material, carbon compound and mixture thereof.

45. The hybrid type filtration structure of claim 44, wherein the copolymer is one of PS-b-PAA, PS-b-PEO, PS-b-PLA, PS-b-PMMA, PS-b-PB, PS-b-PVP and mixture thereof.

46. The hybrid type filtration structure of claim 40, wherein the first active layer has a thickness between 1 nm and 100 nm, and the second active layer has a thickness between 1 nm and 100 nm.

47. A hybrid type filtration structure, comprising: a first active layer having a first nano pore inner wall of which a function group included compound is combined with; a porous supporting layer having a pore inside of which the first active layer is embedded; and a permeable layer disposed under the porous supporting layer, wherein the porous supporting layer comprises a plurality of lipid bilayers having membrane protein inside of the pore, a molecule of water selectively passing through the membrane protein, and wherein the first nano pore passes through the first active layer vertically.

48. A hybrid type filtration structure, comprising: a first active layer having a first nano pore inner wall of which a function group included compound is combined with; a porous supporting layer having a pore inside of which the first active layer is embedded; and a second active layer disposed under the porous supporting layer, and having a second nano pore inner wall of which a function group included compound is combined with, wherein the porous supporting layer comprises a plurality of lipid bilayers having membrane protein inside of the pore, a molecule of water selectively passing through the membrane protein, wherein the first nano pore and the second nano pore respectively pass through the first active layer and the second active layer vertically, and wherein the pore and the second nano pore are connected with each other through which liquid flows.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0051] FIG. 1 is a cross-sectional view illustrating a hybrid type filtration structure according to an example embodiment of the present invention, the hybrid type filtration structure having a first active layer, a porous supporting layer and a permeable layer, the first active layer having a first nano pore, the porous supporting layer having a lipid bilayer having a membrane protein through which a molecule of water selectively passes;

[0052] FIG. 2 is a cross-sectional view illustrating a hybrid type filtration structure according to another example embodiment of the present invention, the hybrid type filtration structure having a first active layer, a porous supporting layer and a second active layer, the first active layer having a first nano pore, the porous supporting layer having a lipid bilayer having a membrane protein through which a molecule of water selectively passes, the second active layer having a second nano pore;

[0053] FIG. 3 is a perspective view illustrating the hybrid type filtration structure of FIG. 1, the hybrid type filtration structure having the first active layer, the porous supporting layer and the permeable layer, the first active layer having the first nano pore, the porous supporting layer having the lipid bilayer having the membrane protein through which a molecule of water selectively passes;

[0054] FIG. 4 is a perspective view illustrating the hybrid type filtration structure of FIG. 2, the hybrid type filtration structure having the first active layer, the porous supporting layer and the second active layer, the first active layer having the first nano pore, the porous supporting layer having the lipid bilayer having the membrane protein through which a molecule of water selectively passes, the second active layer having a second nano pore;

[0055] FIG. 5 is a perspective view illustrating a hybrid type filtration structure according to still another example embodiment of the present invention, the hybrid type filtration structure having a first active layer, a porous supporting layer and a permeable layer, the first active layer having a first nano pore embedded in the porous supporting layer, the porous supporting layer having a lipid bilayer having a membrane protein through which a molecule of water selectively passes;

[0056] FIG. 6 is a cross-sectional view illustrating the hybrid type filtration structure of FIG. 5, the hybrid type filtration structure having the first active layer, the porous supporting layer and the permeable layer, the first active layer having the first nano pore embedded in the porous supporting layer, the porous supporting layer having the lipid bilayer having the membrane protein through which a molecule of water selectively passes;

[0057] FIG. 7 is a perspective view illustrating a hybrid type filtration structure according to still another example embodiment of the present invention, the hybrid type filtration structure having a first active layer, a porous supporting layer and a second active layer, the first active layer having a first nano pore embedded in the porous supporting layer, the porous supporting layer having a lipid bilayer having a membrane protein through which a molecule of water selectively passes, the second active layer having a second nano pore; and

[0058] FIG. 8 is a perspective view illustrating the hybrid type filtration structure of FIG. 7, the hybrid type filtration structure having the first active layer, the porous supporting layer and the second active layer, the first active layer having the first nano pore embedded in the porous supporting layer, the porous supporting layer having the lipid bilayer having the membrane protein through which a molecule of water selectively passes, the second active layer having the second nano pore.

REFERENCE NUMERALS

[0059] 11a: first active layer

[0060] 11b: porous supporting layer

[0061] 11c: second active layer

[0062] 12a: first nano pore

[0063] 12b: second nano pore

[0064] 13: lipid bilayer having a membrane protein

[0065] 13a: membrane protein

[0066] 14: permeable layer

DETAILED DESCRIPTION

[0067] The invention is described more fully hereinafter with Reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that, although the terms first, second, third etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms.

[0068] Hereinafter, exemplary embodiment of the invention will be explained in detail with reference to the accompanying drawings.

[0069] FIG. 1 is a cross-sectional view illustrating a hybrid type filtration structure according to an example embodiment of the present invention. FIG. 3 is a perspective view illustrating the hybrid type filtration structure of FIG. 1. The hybrid type filtration structure has a first active layer 11a, a porous supporting layer 11b and a permeable layer 14. The first active layer 11a has a first nano pore 12a. The porous supporting layer has a lipid bilayer 13 having a membrane protein 13a through which a molecule of water selectively passes.

[0070] FIG. 2 is a cross-sectional view illustrating a hybrid type filtration structure according to another example embodiment of the present invention. FIG. 4 is a perspective view illustrating the hybrid type filtration structure of FIG. 2. The hybrid type filtration structure has a first active layer 11a, a porous supporting layer 11b and a second active layer 11c. The first active layer 11a has a first nano pore 12a. The porous supporting layer 11b has a lipid bilayer 13 having a membrane protein 13a through which a molecule of water selectively passes. The second active layer 11c has a second nano pore 12b.

[0071] FIG. 5 is a perspective view illustrating a hybrid type filtration structure according to still another example embodiment of the present invention. FIG. 6 is a cross-sectional view illustrating the hybrid type filtration structure of FIG. 5. The hybrid type filtration structure has a first active layer 11a, a porous supporting layer 11b and a permeable layer 14. The first active layer 11a has a first nano pore 12a embedded in the porous supporting layer 11b. The porous supporting layer 11b has a lipid bilayer 13 having a membrane protein 13a through which a molecule of water selectively passes.

[0072] FIG. 7 is a perspective view illustrating a hybrid type filtration structure according to still another example embodiment of the present invention. FIG. 8 is a perspective view illustrating the hybrid type filtration structure of FIG. 7. The hybrid type filtration structure has a first active layer 11a, a porous supporting layer 11b and a second active layer 11c. The first active layer 11a has a first nano pore 12a embedded in the porous supporting layer 11b. The porous supporting layer 11b has a lipid bilayer 13 having a membrane protein 13a through which a molecule of water selectively passes. The second active layer has a second nano pore 12b.

[0073] A plurality of first nano pores 12a is formed through the first active layer 11a, and a plurality of pores 12b is formed through the porous supporting layer 11b. The first active layer 11a is substantially perpendicular to the porous supporting layer 11b. The first nano pore 12a passes through the first active layer 11a vertically, and the pores 12b passes through the porous supporting layer 11b. The first nano pore 12a is connected to the pore 12b so as for liquid to flow, and thus liquid molecules like a molecule of water may pass through. In addition, the first active layer 11a including the first nano pore 12a may be embedded in the porous supporting layer 11b.

[0074] A function group included compound A, like a arginine-phenylalanine unit having a peptide function group, is combined inside of the first nano pore 12a. Here, the first nano pore 12a and the function group included compound A are combined with each other via amid bond. Thus, the first nano pore 12a has selectivity to the molecule of water, and blocks the ion included in the water or other compound molecule to be passed through.

[0075] A permeable layer 14 is disposed under the porous supporting layer 11b, or the second active layer 11c having the second nano pore 12b is disposed under the porous supporting layer 11b. Thus, water passing through the first nano pore 12a and selectively passing through the membrane protein 13a passes through the permeable layer 14 or passes through the second nano pore 12b, so that the molecule of water selectively passes through as like in the first nano pore 12a and the ion included in the water or other compound molecule are blocked to be passed through. In addition, the permeable layer 14 existing in a lower portion of the porous supporting layer 11b or the second active layer 11c including the second nano pore 12b supports the lipid bilayer 13 having a membrane protein 13a selectively passing through the molecule of water so as not to be extruded from the pore 12b of the porous supporting layer 11b. For example, aquaporin may be used as the membrane protein 13a for filtering the water.

[0076] Having described the example embodiments of the present invention and its advantage, it is noted that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by appended claims.