CN114075042A - Method for constructing density-controllable bactericidal nano blade on glass surface - Google Patents
Method for constructing density-controllable bactericidal nano blade on glass surface Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000011521 glass Substances 0.000 title claims abstract description 30
- 239000005341 toughened glass Substances 0.000 claims abstract description 40
- 230000001954 sterilising effect Effects 0.000 claims abstract description 35
- 238000005530 etching Methods 0.000 claims abstract description 30
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 30
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 27
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
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Abstract
The invention discloses a method for constructing a density-controllable bactericidal nano blade on the surface of glass, which comprises the following steps: s1, washing the chemically tempered glass with water, ethyl acetate and absolute ethyl alcohol respectively, and then airing; s2, preparing a KOH solution as a basic etching agent; s3, adding Na into the basic etching agent2CO3Mixing the solutions to obtain a compound etching solution; s4, adding the compound etching liquid into the polytetrafluoroethylene lining at a duty ratio of 30-70%, and then placing the glass sample wafer subjected to the step S1 into the lining; s5, placing the lining into a high-pressure kettle, preserving the heat for a period of time, and naturally cooling to room temperature; and S6, washing the glass sample with deionized water and drying to obtain the toughened glass with the bactericidal nanometer blade structure. The nano blade prepared by the method has the characteristics of low thickness and high density, so that the nano blade has quick sterilization performance; the method has the advantages of good bonding force with the substrate, stable surface structure in multiple use, long-acting sterilization effect, simple and controllable method and easy realization of batch production.
Description
Technical Field
The invention relates to the technical field of glass surface functionalization treatment, in particular to a method for constructing a sterilization nanometer blade with controllable density on the surface of glass.
Background
The air transportation is convenient and quick, and simultaneously can carry pathogens to spread for a long distance, and is an important way for spreading infectious microorganisms at present. The need for the control of pathogenic microorganisms in the passenger cabin has therefore risen to a new level. Typical pathogenic microorganisms include pathogenic bacteria, which are ubiquitous in the cabin environment and which can achieve initial adhesion, proliferation, biofilm formation and eventual migration of surfaces in a short period of time. Each of the above processes may lead to the spread of bacteria and infection by skin contact or inhalation. Generally, for an internal environment with a densely populated and relatively closed passenger cabin, an advanced air filtration system is provided on board, but it still cannot effectively prevent the infection of the onboard personnel. Moreover, high-frequency contact surfaces such as Chemically toughened Glass (CSG) of a cabin porthole are very easy to be infected with bacteria to cause secondary pollution, and timely and effective killing of the bacteria on the surfaces becomes a key for preventing cross infection of personnel in the cabin and spread of pathogenic bacteria. At present, the civil aircraft passenger cabin is mainly wiped and disinfected by chlorine-containing disinfectants and quaternary ammonium salt disinfectants, but the chemical substances are remained on the surface and have potential toxicity and irritation. The stability and the long-term effect of the surface disinfectant are poor, regular disinfection treatment is needed, and the passenger cabin must be thoroughly disinfected after each flight is finished, so that a large amount of manpower is consumed, and the boarding waiting time is greatly prolonged. There is a need to find new technologies that can rapidly and effectively control microorganisms.
In recent years, researches show that the nano-scale structure on the body surface of natural animals and plants has a bactericidal effect on bacteria, and the bactericidal effect is realized based on the mechanical interaction between the nano-scale structure and bacterial cells in the process that the nano-scale structure contacts the bacterial cells. Factors influencing the mechanical sterilization performance of the nano structure mainly comprise blade thickness and blade density, and the purpose of further improving the mechanical sterilization performance can be realized by reducing the blade thickness or increasing the blade density. The zinc-aluminum layered double-metal hydroxide sterilization nanometer blade grids are prepared on the surface of an aluminum alloy plate by a hydrothermal growth method in the earlier stage, and the blade grids have certain sterilization performance. Due to the limitation of the hydrothermal growth process, a blade with higher density can be grown in a longer time, and the thickness of the blade is also increased continuously in the process, so that a nano blade with low thickness and high density is difficult to obtain, and the sterilization rate of the nano blade structure cannot be effectively improved. In addition, the zinc-aluminum layered double hydroxide is easily corroded by acid and alkali and has poor chemical stability, so that the application of the zinc-aluminum layered double hydroxide is limited. Therefore, a sterilization method with economic and environmental protection, good antibacterial performance, stability and durability is urgently needed to be provided.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for constructing a density-controllable bactericidal nano blade on the surface of glass, the density of the bactericidal nano blade is regulated and controlled while the nano blade keeps low thickness by an etching method, and the number of bactericidal blades which can be contacted by a single-cell nano blade is effectively increased by increasing the density of the nano blade, so that the mechanical bactericidal performance of the surface is improved, and the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a method for constructing a sterilization nanometer blade with controllable density on the surface of glass comprises the following steps:
s1, washing the chemically tempered glass with water, ethyl acetate and absolute ethyl alcohol respectively, and then airing;
s2, preparing a KOH solution as a basic etching agent;
s3, adding Na into the basic etching agent2CO3Mixing the solutions to obtain a compound etching solution;
s4, adding the compound etching liquid into the polytetrafluoroethylene lining at a duty ratio of 30-70%, and then placing the glass sample wafer subjected to the step S1 into the lining;
s5, placing the lining into a high-pressure kettle, preserving heat for a period of time, and naturally cooling to room temperature;
and S6, washing the glass sample with deionized water and drying to obtain the toughened glass with the bactericidal nanometer blade structure.
Preferably, the concentration of the KOH solution in the step S2 is 0.1 mol. L-1～1.0mol·L-1。
Preferably, Na in the step S32CO3The concentration of the solution was 0.5 mol. L-1～1.0mol·L-1。
Preferably, the temperature for heat preservation in the step S5 is 80-180 ℃; the heat preservation time is 0.5 h-18 h.
Preferably, the temperature for drying in the step S6 is 50 ℃.
Preferably, the thickness of the bactericidal nanometer blade is 15-60 nm; the density of the blade is 1.0 multiplied by 107Sheet cm-2～8.5×109Sheet cm-2。
Preferably, the thickness of the bactericidal nanometer blade is 15-30 nm; the density of the blade is 8.5 multiplied by 109Sheet cm-2。
Preferably, the bactericidal nano blade structure has excellent bactericidal performance, can play a bactericidal role within 10min of being contacted with bacteria, and has a bactericidal rate of 0.9 multiplied by 10 according to different blade densities3Each.cm-2·min-1～4.2×104Each.cm-2·min-1。
Preferably, the sterilization rate is 4.2 x 104Each.cm-2·min-1。
The invention has the beneficial effects that:
1) the method is realized by a common alkali etching method in industrial production, is not only limited to toughened glass in the embodiment, but also suitable for various soda-lime glass and silicate glass, can realize the construction of a sterilization nanometer blade structure on the surfaces of various glass, realizes the surface antibacterial functionalization of the sterilization nanometer blade structure, has high regularity of the prepared nanometer blade, is uniformly distributed on the surface of a base material, is easy to expand the production, realizes batch production and application, is relatively simple and convenient, and has great development potential;
2) the thickness of the nanometer blade obtained by the method can be kept between 15 nm and 30nm, and simultaneously, higher density (8.5 multiplied by 10) can be achieved9Sheet cm-2) Can exert the bactericidal effect within 10min of the contact with bacteria, and the bactericidal rate can reach 4.2 multiplied by 103Each.cm-2·min-1The nano blade has strong adhesive force on the surface of the metal substrate, is resistant to ultrasonic cleaning and acid-base corrosion to a certain degree, and has good stability, so that the nano blade has long-acting sterilization characteristic;
3) the nano blade prepared by the method has good bonding force with the substrate, has high bonding strength, ensures that the nano blade can be firmly bonded with the substrate, has stable surface structure in multiple uses, has sterilization long-acting property, is simple and controllable, and is easy to realize batch production.
Drawings
FIG. 1 is a schematic flow chart of the process of the present invention;
FIG. 2 is a scanning electron microscope image of the surface nano-blade of the chemically tempered glass substrate prepared in example 1;
FIG. 3 is a scanning electron microscope image of the surface nano-blade of the chemically tempered glass substrate prepared in example 2;
FIG. 4 is a scanning electron microscope image of the surface nano-blade of the chemically tempered glass substrate prepared in example 3;
FIG. 5 is a scanning electron microscope image of the surface nano-blade of the chemically tempered glass substrate prepared in example 4 after being subjected to ultrasonic cleaning;
FIG. 6 is a field emission scanning electron microscope image of a comparative example of original chemically tempered glass;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a method for constructing a density-controllable bactericidal nano blade on a glass surface comprises the following steps: preparing an etching agent, transferring to a tetrafluoroethylene liner, constructing a sterilizing nano blade, cleaning and drying to obtain a sterilizing surface, and specifically comprising the following steps as shown in figure 1:
the chemical toughened glass is respectively washed by water, ethyl acetate and absolute ethyl alcohol and then dried in the air, and the preparation concentration is 0.1 mol.L-1～1.0mol·L-1KOH solution as basic etching agent, the concentration of the basic etching agent is 0.5 mol.L-1～1.0mol·L-1Na of (2)2CO3The solution is fully mixed to obtain a compound etching agent, then the compound etching agent is added into a polytetrafluoroethylene lining with the volume of 50-200 mL according to the duty ratio of 30-70%, then chemical toughened glass with proper size is placed into the lining, the lining is placed into a high-pressure kettle, the temperature is kept for 0.5-18 h at the temperature of 80-180 ℃, and then the mixture is naturally cooled to the room temperature. Washing each sample piece with deionized water, and drying at 50 ℃ to obtain toughened glass with a bactericidal nano blade structure, wherein the thickness of the nano blade on the surface is 15-60 nm, and the density of the blade is 1.0 multiplied by 107Sheet cm-2～8.5×109Sheet cm-2And (3) a range. The method can construct the bactericidal nanometer blade on the surfaces of various kinds of glass (including but not limited to chemical toughened glass of civil aircraft porthole linings adopted in the embodiments of the patent, and also including other commercial and civil calcium sodium glass and borosilicate glass); the nano blade can be accurately regulated and controlled through an alkali etching process (parameters and time), the density of the blade can be controlled under the condition of low thickness, and the quantity of the sterilizing blades which can be contacted by single bacteria is influenced through the density control of the sterilizing nano blade, so that the regulation and control of the surface sterilizing performance are realized. The bactericidal nano blade means that the nano blade can destroy the integrity of cells through mechanical force in the process of contacting bacteria to cause the content of the cells to flow out to realize the bactericidal effect, particularly, the nano blade density is increased to realize the improvement of the surface bactericidal performance, and the nano blade can contact the bacteriaHas sterilization effect within 10min, and the sterilization rate is 0.9 multiplied by 103Each.cm-2·min-1～4.2×104Each.cm-2·min-1。
Example 1
The chemical toughened glass is respectively washed by water, ethyl acetate and absolute ethyl alcohol and then dried in the air, and the preparation concentration is 0.1 mol.L-1The KOH solution is used as a basic etchant, the etchant is added into a polytetrafluoroethylene liner with the volume of 100mL according to the duty ratio of 50 percent, then the chemically tempered glass with proper size is placed into the liner, the liner is placed into an autoclave and is kept at the temperature of 95 ℃ for 1 hour, and then the liner is naturally cooled to the room temperature. And (3) cleaning the sample wafer by using deionized water, and drying at 50 ℃ to obtain the toughened glass with the bactericidal nano blade structure.
As shown in fig. 2, fig. 2 is a field emission scanning electron microscope image of the bactericidal nano blade grown on the surface of the chemically tempered glass obtained in the present embodiment, it can be seen that a nano blade with a lower density is grown on the surface of the glass substrate, and statistics are performed on the thickness and density of the nano blade in the image, so that the nano blade prepared in the present embodiment has a thickness of 16.5 to 27.3nm and a blade density of 4.0 × 109Sheet cm-2。
Example 2
The preparation process of the mechanical sterilization nanometer blade with variable constructed density on the surface of the chemically toughened glass comprises the following steps:
the chemical toughened glass is respectively washed by water, ethyl acetate and absolute ethyl alcohol and then dried in the air, and the preparation concentration is 0.1 mol.L-1The KOH solution is used as a basic etchant, then the etchant is added into a polytetrafluoroethylene liner with the volume of 100mL according to the duty ratio of 50 percent, then the chemically toughened glass with proper size is placed into the liner, the liner is placed into an autoclave and is kept at the temperature of 95 ℃ for 3 hours, and then the liner is naturally cooled to the room temperature. And (3) cleaning the sample wafer by using deionized water, and drying at 50 ℃ to obtain the toughened glass with the bactericidal nano blade structure.
As shown in FIG. 3, FIG. 3 is a scanning electron microscope image of the field emission of the bactericidal nano-blade growing on the surface of the chemically strengthened glass obtained in the present embodiment, and it can be seen that the surface of the glass substrate increases with the etching timeThe density and length of the nano blade of the surface are obviously increased, and the thickness of the blade is not obviously increased. The thickness and the density of the nanometer blade in the figure are counted to obtain that the thickness of the nanometer blade prepared by the embodiment is 17.5-25.3 nm, and the blade density is 6.0 multiplied by 109Sheet cm-2。
Example 3
The preparation process of the mechanical sterilization nanometer blade with variable constructed density on the surface of the chemically toughened glass comprises the following steps:
the chemical toughened glass is respectively washed by water, ethyl acetate and absolute ethyl alcohol and then dried in the air, and the preparation concentration is 0.5 mol.L-1KOH solution as basic etching agent, the concentration of the basic etching agent is 0.25 mol.L-1～1.0mol·L-1Na of (2)2CO3The solution is fully mixed to obtain a compound etching agent, then the compound etching agent is added into a polytetrafluoroethylene lining with the volume of 50mL according to the duty ratio of 50%, then chemical toughened glass with proper size is placed into the lining, the lining is placed into an autoclave and is kept at 120 ℃ for 4 hours, and then the mixture is naturally cooled to the room temperature. And (3) cleaning the sample wafer by using deionized water, and drying at 50 ℃ to obtain the toughened glass with the bactericidal nano blade structure.
As shown in fig. 4, fig. 4 is a field emission scanning electron microscope image of the bactericidal nano blade growing on the surface of the chemically tempered glass obtained in this embodiment, it can be seen that the nano blade grows on the surface of the glass substrate, and the thickness of the nano blade does not increase significantly while the nano blade maintains high density by adjusting the etching system. The thickness and the density of the nanometer blade in the figure are counted to obtain that the thickness of the nanometer blade prepared by the embodiment is 22.1-35.3 nm, and the density of the blade is 1.8 multiplied by 109Sheet cm-2。
Example 4
The preparation process of the mechanical sterilization nanometer blade with variable constructed density on the surface of the chemically toughened glass comprises the following steps:
the chemical toughened glass is respectively washed by water, ethyl acetate and absolute ethyl alcohol and then dried in the air, and the preparation concentration is 0.75 mol.L-1KOH solution as basic etching agent, the concentration of the basic etching agent is 0.75 mol.L-1Na of (2)2CO3The solution is fully mixed to obtain a compound etching agent, then the compound etching agent is added into a polytetrafluoroethylene lining with the volume of 100mL according to the duty ratio of 60%, then chemical toughened glass with proper size is placed into the lining, the lining is placed into an autoclave and is kept at 150 ℃ for 3 hours, and then the mixture is naturally cooled to the room temperature. And cleaning the sample wafer by deionized water, then cleaning the sample wafer by ultrasonic waves for 10 minutes, and drying the sample wafer at 50 ℃ to obtain the toughened glass cleaning group with the sterilizing nanometer blade structure.
As shown in fig. 5, fig. 5 is a field emission scanning electron microscope image of the bactericidal nano blade growing on the surface of the chemically tempered glass obtained in the present embodiment, and it can be seen that the nano blade on the surface of the glass substrate can be kept intact through ultrasonic cleaning, which indicates that the nano blade and the substrate can be firmly combined. The thickness and the density of the nanometer blade in the figure are counted to obtain that the thickness of the nanometer blade prepared by the embodiment is 29.1-42.9 nm, and the blade density is 2.6 multiplied by 109Sheet cm-2。
Comparative example
The preparation process of the sample by using the chemically toughened glass as the comparative example is as follows:
cutting the chemically tempered glass into a proper size, sequentially immersing the sample in water, ethyl acetate and absolute ethyl alcohol, ultrasonically cleaning for 10min, drying, and drying and cooling at 50 ℃ to obtain a sample of a comparative example.
As shown in fig. 6, fig. 6 is a field emission scanning electron microscope image of the surface of the chemically tempered glass obtained by the comparative example, and the surface of the sample can be observed to be flat.
Results of antibacterial experiments
The chemical toughened glass with the surface built with the nano blade prepared in the embodiments 1-4 is subjected to sterilization performance characterization by a film pasting method in the nano inorganic material antibacterial performance detection method (GB 21510-.
The specific operation of the antibacterial performance experiment is as follows: preparing 0.5-5 x 1060.1mL of bacterial liquid of cfu/mL escherichia coli is dripped on the surface of the sample wafer, and then a sterilized PE film (4cm multiplied by 4cm) is pasted to ensure that the bacterial liquid is uniformly distributed and is in contact culture at 37 ℃ for 10min, and thenAnd then using sterilized normal saline as eluent to count escherichia coli on the surface of each sample, and calculating the 10min sterilization rate of each sample according to a formula in the standard. The respective process formulations and the antibacterial results are shown in table 1. The results show that the nano blades obtained in the examples all show good sterilization performance, and the sterilization rate reaches 2.6 multiplied by 103Individual bacterium cm-2·min-1To 4.2X 104Individual bacterium cm-2·min-1. The nano blade obtained in the embodiment 2-4 can kill bacteria on the surface in 10min, particularly, after ultrasonic treatment, the structure of the nano blade on the surface is kept complete, and the mechanical sterilization performance is not affected.
TABLE 1 specific Process and Sterilization rates for the examples
The results show that the nano blade constructed on the surface of the chemically toughened glass by the method has good sterilization performance on escherichia coli, the performance of the bacteria can play a role in a short time (10min), and the nano blade can stably exist on the substrate, so that the surface has long-acting sterilization performance.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. A method for constructing a density-controllable bactericidal nano blade on the surface of glass is characterized by comprising the following steps:
s1, washing the chemically tempered glass with water, ethyl acetate and absolute ethyl alcohol respectively, and then airing;
s2, preparing a KOH solution as a basic etching agent;
s3, adding Na into the basic etching agent2CO3Mixing the solutions to obtain a compound etching solution;
s4, adding the compound etching liquid into the polytetrafluoroethylene lining at a duty ratio of 30-70%, and then placing the glass sample wafer subjected to the step S1 into the lining;
s5, placing the lining into a high-pressure kettle, preserving heat for a period of time, and naturally cooling to room temperature;
and S6, washing the glass sample with deionized water and drying to obtain the toughened glass with the bactericidal nanometer blade structure.
2. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 1, wherein the method comprises the following steps: the concentration of the KOH solution in the step S2 is 0.1 mol. L-1～1.0mol·L-1。
3. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 1, wherein the method comprises the following steps: na in said step S32CO3The concentration of the solution was 0.5 mol. L-1～1.0mol·L-1。
4. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 1, wherein the method comprises the following steps: the temperature for heat preservation in the step S5 is 80-180 ℃; the heat preservation time is 0.5 h-18 h.
5. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 1, wherein the method comprises the following steps: the temperature for drying in said step S6 was 50 ℃.
6. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 1, wherein the method comprises the following steps: the thickness of the bactericidal nanometer blade is 15-60 nm; the density of the blade is 1.0 multiplied by 107Sheet cm-2～8.5×109Sheet cm-2。
7. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 6, wherein the nano-blade comprises: the thickness of the bactericidal nanometer blade is 15-30 nm; the density of the blade is 8.5 multiplied by 109Sheet cm-2。
8. The method for constructing the bactericidal nano-blade with the controllable density on the glass surface as set forth in claim 1, wherein the method comprises the following steps: the bactericidal nano blade structure has excellent bactericidal performance, can play a bactericidal role within 10min of the contact with bacteria, and has the bactericidal rate of 0.9 multiplied by 10 according to different blade densities3Each.cm-2·min-1～4.2×104Each.cm-2·min-1。
9. The method for constructing bactericidal nano-blades with controllable density on the surface of glass as claimed in claim 8, wherein the method comprises the following steps: the sterilization rate is 4.2 multiplied by 104Each.cm-2·min-1。
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649623A (en) * | 2011-02-28 | 2012-08-29 | 中国科学院理化技术研究所 | Anti-reflection super-hydrophilic self-cleaning anti-fog glass and preparation method thereof |
| US20130164521A1 (en) * | 2010-08-10 | 2013-06-27 | Jae Min Myoung | Glass substrate manufacturing method and glass thereof |
| US20150191391A1 (en) * | 2012-06-19 | 2015-07-09 | Agc Glass Europe | Method for producing a sheet of selectively etched glass |
| CN106082692A (en) * | 2016-06-16 | 2016-11-09 | 杨得全 | Self-cleaning surface structure of Nanometer dustproof and preparation method thereof |
| CN107129157A (en) * | 2017-05-08 | 2017-09-05 | 浙江理工大学 | A kind of preparation method of three-dimensional porous bioactivity glass |
| US20170354140A1 (en) * | 2016-04-05 | 2017-12-14 | International Business Machines Corporation | Lateral silicon nanospikes fabricated using metal-assisted chemical etching |
| US20190093150A1 (en) * | 2017-09-22 | 2019-03-28 | Uchicago Argonne, Llc | Nanotextured materials |
| CN110195227A (en) * | 2019-07-04 | 2019-09-03 | 西南交通大学 | A method of blade net nanostructure is constructed in aluminum alloy surface |
| KR20200050251A (en) * | 2018-11-01 | 2020-05-11 | 중앙대학교 산학협력단 | Superhydrophilic Glass Surface with Antireflective and Bactericidal Effect and Method of Manufacturing the Same |
-
2021
- 2021-10-28 CN CN202111265804.0A patent/CN114075042A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130164521A1 (en) * | 2010-08-10 | 2013-06-27 | Jae Min Myoung | Glass substrate manufacturing method and glass thereof |
| CN102649623A (en) * | 2011-02-28 | 2012-08-29 | 中国科学院理化技术研究所 | Anti-reflection super-hydrophilic self-cleaning anti-fog glass and preparation method thereof |
| US20150191391A1 (en) * | 2012-06-19 | 2015-07-09 | Agc Glass Europe | Method for producing a sheet of selectively etched glass |
| US20170354140A1 (en) * | 2016-04-05 | 2017-12-14 | International Business Machines Corporation | Lateral silicon nanospikes fabricated using metal-assisted chemical etching |
| CN106082692A (en) * | 2016-06-16 | 2016-11-09 | 杨得全 | Self-cleaning surface structure of Nanometer dustproof and preparation method thereof |
| CN107129157A (en) * | 2017-05-08 | 2017-09-05 | 浙江理工大学 | A kind of preparation method of three-dimensional porous bioactivity glass |
| US20190093150A1 (en) * | 2017-09-22 | 2019-03-28 | Uchicago Argonne, Llc | Nanotextured materials |
| KR20200050251A (en) * | 2018-11-01 | 2020-05-11 | 중앙대학교 산학협력단 | Superhydrophilic Glass Surface with Antireflective and Bactericidal Effect and Method of Manufacturing the Same |
| CN110195227A (en) * | 2019-07-04 | 2019-09-03 | 西南交通大学 | A method of blade net nanostructure is constructed in aluminum alloy surface |
Non-Patent Citations (1)
| Title |
|---|
| YUAN XIE ET AL.: "Relationship between mechano-bactericidalactivity and nanoblades density on chemically strengthened glas", NANOTECHNOLOGY REBIEWS, vol. 11, no. 1, pages 138 - 146 * |
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