KR101397346B1 - Production method of Multifunctional complex for UV protection and skin waste absorption - Google Patents
Production method of Multifunctional complex for UV protection and skin waste absorption Download PDFInfo
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- KR101397346B1 KR101397346B1 KR1020120080043A KR20120080043A KR101397346B1 KR 101397346 B1 KR101397346 B1 KR 101397346B1 KR 1020120080043 A KR1020120080043 A KR 1020120080043A KR 20120080043 A KR20120080043 A KR 20120080043A KR 101397346 B1 KR101397346 B1 KR 101397346B1
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Abstract
The present invention relates to an ultraviolet screening agent having a complex function, and a method for manufacturing a multifunctional complex for cosmetics having ultraviolet screening and skin wastes absorbing capability according to the present invention is characterized by using Titanium butoxide (Titanium glycolate ); And a second step of adding water to the titanium glycolate to synthesize porous spherical titanium dioxide (TiO2).
According to the present invention, it is possible to produce a sunscreen agent having high SPF and excellent skin wastes removal by using spherical mesoporous TiO 2 .
Description
The present invention relates to an ultraviolet screening agent having a complex function.
Although the amount of ultraviolet rays reaching the earth is increasing due to the destruction of the ozone layer due to environmental pollution, due to the increase of leisure time due to economic growth, outdoor activities are increasing and diseases caused by ultraviolet rays such as skin cancer are increasing. Recently sunscreen market has been steadily growing as a result of anti-aging and UV rays, and it is attracting attention as a promising future market.
There are various types of ultraviolet screening agents for protecting the skin from ultraviolet rays, such as an inorganic ultraviolet screening agent and an organic ultraviolet screening agent. Organic sunscreen agents have excellent wetting properties and have a high ultraviolet shielding index, but stimulate the skin and have a narrow wavelength range. In the case of an inorganic sunscreen agent, it shields ultraviolet rays in a wide wavelength range and has safety on the skin. However, these inorganic sunscreen agents are aggregated and have low dispersibility, resulting in opacification and skin oxidation. Therefore, it is necessary to develop a sunscreen agent that complements these shortcomings.
On the other hand, functional cosmetics include cosmetics that help to improve wrinkles of skin, cosmetics to help whitening, and cosmetics to help protect skin from ultraviolet rays. Nowadays, the cosmetics market has a complex function that is not functional cosmetics with one function. In Korea, sunscreen containing anti-aging ingredients and sunscreen containing a whitening / wrinkle / ultraviolet screening double action function are widely available. However, there is no study on a sunscreen containing a function of removing sebum such as sebum removing function.
Conventionally, cosmetics with wrinkle / whitening functional cosmetics for men and cosmetics having functions to improve wrinkles and give skin elasticity through a non-destructive skin absorption enhancement technique using polymer conjugation have been introduced. Cosmetic products containing such a large number of functions have been developed and commercialized, but products having an effect of blocking ultraviolet rays and removing waste products have not been commercialized.
The present invention provides a method for producing a novel structured multifunctional complex for cosmetics having a waste absorbing function while meeting the requirements of consumers for their SPF index and PA index.
The present invention also provides a manufacturing method capable of further completing the ultraviolet shielding function of a multifunctional composite for cosmetics having a novel structure having a waste-absorbing function.
The method for manufacturing a multifunctional composite for cosmetics having ultraviolet shielding and skin wastes absorption performance according to the present invention comprises the steps of: (1) producing titanium glycolate using titanium butoxide; And a second step of adding water to the titanium glycolate to synthesize porous spherical titanium dioxide (TiO2).
The first step may include a first step of adding the titanium butoxide to ethylene glycol and stirring the ethylene glycolate added with the titanium butoxide at a predetermined temperature; A second step of adding acetone and water to the ethylene glycolate to which the titanium butoxide has been added and stirring the mixture; A first step of washing after the white precipitate is formed as the stirring progresses; And a step 1-4 of drying the washed white precipitate.
Further, in step 1-3, the white precipitate may be washed with ethanol.
Also, pores of the porous spherical titanium dioxide may be formed by the water added in the step 1-2.
Furthermore, the pores can be formed while water adhering to the outer surface of the porous spherical titanium dioxide penetrates into the inside of the surface by the density difference.
Further, the method may further include a third step of mixing the porous spherical titanium dioxide (TiO2) and the Anatase phase titanium dioxide (TiO2).
Further, the porous spherical titanium dioxide (TiO2) may be mixed in an amount of 45% to 55% by mass with respect to the whole mixture.
The BET surface area of the porous spherical titanium dioxide may also be between 197 m 2 / g and 217 m 2 / g.
Meanwhile, the multifunctional composite for cosmetics having ultraviolet barrier and skin wastes absorption performance according to the present invention is formed by mixing titanium dioxide and anatase-phase titanium dioxide prepared according to the first aspect.
On the other hand, the multifunctional complex for cosmetics having the ultraviolet screening and skin wastes absorption performance according to the present invention is produced according to any one of
According to the present invention, it is possible to produce a sunscreen agent having high SPF and excellent skin wastes removal by using spherical mesoporous TiO 2 .
Further, according to the present invention, there is no need for a separate peeling gel for removing waste materials, thereby reducing cost and time.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart illustrating a process for synthesizing porous spherical TiO 2 from a titanium glycolate salt and a resulting titanium salt;
Fig. 2 is a graph comparing peak values obtained by X-ray diffraction of this embodiment and Comparative Example 1. Fig.
3 is a graph showing a peak value according to X-ray diffraction according to this embodiment.
4A to 4C are photographs showing enlargement of particles of TiO2 according to a comparative example using a scanning electron microscope (SEM).
5A to 5C are photographs showing enlargement of particles of porous spherical TiO2 according to this embodiment using a scanning electron microscope (SEM).
6A to 6C are photographs showing enlargement of particles of porous spherical TiO2 according to the present embodiment using a projection electron microscope (TEM).
Fig. 7 is a graph showing ultraviolet absorption of TiO2 according to this embodiment and a comparative example.
8 is a graph showing ultraviolet reflectance of TiO2 according to this embodiment and a comparative example.
FIG. 9 is a graph showing adsorption rates of waste materials of
FIG. 10 is a graph showing the results of measurement of ultraviolet ray absorptivity by mixing
11 is a graph showing the results of measurement of ultraviolet reflectance by mixing TiO2 according to the present embodiment and Comparative Example at a ratio.
12 is a graph showing the results of measurement of waste matter adsorption rate by mixing TiO2 according to the present embodiment and a comparative example by a ratio.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the absence of special definitions or references, the terms used in this description are based on the conditions indicated in the drawings.
≪ Example 1 >
Referring to FIG. 1, a multifunctional composite for cosmetics and a method for producing the same according to the present invention will be described. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart illustrating a process for synthesizing porous spherical TiO 2 from a titanium glycolate salt and a resulting titanium salt;
The method of manufacturing the porous spherical titanium dioxide (mesoporous TiO 2 sphere) according to the present embodiment is roughly divided into two steps. First, a titanium glycolate is formed, and a porous spherical dioxide (mesoporous TiO 2 sphere) is synthesized from the produced titanium glycolate.
The reagents used in the synthesis are as follows. Titanium butoxide (97%) was used as the Ti source, and ethylene glycol (99.9%) was used for stabilization of this sample. Acetone (99.5%) was used as a solvent and Ethanol (95.0%) and water were used for washing. The detailed procedure for composing is as follows.
Referring to FIG. 1, 50 mL of ethylene glycol is placed in a tube, 2 mL of titanium butoxide is added, and the mixture is stirred at room temperature for 8 hours. Add 170 mL of acetone and 2.7 mL of water, and stir for 1 hour. When a white precipitate is formed, it is centrifuged at 3000 rpm and washed with ethanol. Finally, drying the remaining precipitate at 80 ° C produces Titanium glycolate.
Next, 20 mL of H 2 O is added to 0.1 g of the generated titanium, and the mixture is refluxed with stirring at 100 ° C. for 1 hour. Once a white precipitate is formed, it is centrifuged at 3500 rpm and washed with water. The remaining precipitate is dried at 80 ° C to synthesize the final porous spherical titanium dioxide (Mesoporous TiO 2 sphere).
<Comparative Example>
On the other hand, as a comparative example, a titanium dioxide having a general anatase phase was adopted. That is, in order to investigate whether the multifunctional complex according to Example 1 is suitable for the characteristics as an ultraviolet screening agent, the following comparative experiments were carried out using a comparative example of anatese phase dioxide used in a commercially available ultraviolet screening agent.
≪ Examples 2 to 4 >
In Examples 2 to 4, effective UV blocking performance and waste adsorption performance were confirmed. Titanium dioxide according to Example 1 was mixed with titanium dioxide in general anatese phase. Example 2 was mixed with 70% of titanium dioxide and 30% of common anatese phase titanium dioxide, Example 3 was mixed with 50% of titanium dioxide and 50% of general anatese phase titanium dioxide, Example 4 was composed of 30% The anatese phase was mixed with 70% titanium dioxide.
Hereinafter, the results of comparison and / or comparison experiments for confirming the ultraviolet barrier function and the waste adsorption function of the porous spherical titanium dioxide according to the present embodiment will be described.
<
A
≪
4A to 6C, experimental results for confirming the particle size and surface morphology of titanium dioxide according to Example 1 and Comparative Example will be described. FIGS. 4A to 4C are enlarged photographs of particles of titanium dioxide (TiO 2 ) according to a comparative example using a scanning electron microscope (SEM), FIGS. 5A to 5 C are photographs of particles of porous spherical titanium dioxide 6A to 6C are enlarged photographs of particles of porous spherical titanium dioxide according to Example 1 by using a transmission electron microscope (TEM). FIG. 6A to FIG. 6C are enlarged photographs using a scanning electron microscope (SEM)
As shown in FIGS. 4A to 4C, it was confirmed that particles of titanium dioxide according to the comparative example were formed in an irregular cluster shape. This is thought to be due to agglomeration between the particles. As the shape becomes uneven and the particles accumulate, the surface area becomes narrower. As the surface area becomes narrower, the ability to absorb wastes is greatly reduced.
On the other hand, as shown in FIGS. 5A to 5C, the porous spherical titanium dioxide according to Example 1 has spherical particles of about 250 to 300 nm gathered. 6A to 6C, it can be seen that the porous spherical titanium dioxide according to the first embodiment does not form a cluster shape as in the comparative example but a lot of pores are formed. It is considered that the H 2 O attached to the surface of the formed titanium dioxide shell permeates into the shell due to the density difference, and cracks are formed, and the pores are formed by these cracks.
<Comparative Experiment 3>
Comparative Experiment 3 will be described. In Comparative Experiment 3, an experiment was conducted to compare the surface area and the pore size through a surface area meter (BET) in order to compare the wastewater absorption capacities of Example 1 and Comparative Example.
In the case of titanium dioxide according to the comparative example, the BET surface area was 8.7281 m 2 / g, the pore volume was 0.045 cm 3 / g, and the pore size was 20.9 nm. On the other hand, in the case of the titanium dioxide according to Example 1, the BET surface area was 207 m 2 / g, the pore volume was 0.35 cm 3 / g, and the pore size was 6.7 nm. In the normal case, the BET surface area of the porous spherical titanium dioxide can be formed within the range of 197 m 2 / g to 217 m 2 / g in consideration of measurement errors and manufacturing process errors. Thus, although the pore size of the comparative example is large, it is judged that the adsorption capability is small because the surface area and pore volume are small. Also, it is judged that Example 1 having a relatively large surface area forms more mesopores.
<
Referring to FIG. 7, the results of absorption rate and reflectance analysis of titanium dioxide according to Example 1 and Comparative Example for UV experiments will be described. 7 is a graph showing ultraviolet reflectance of TiO2 according to this embodiment and a comparative example.
When determining the ability of a sunscreen to block light, measure absorption, reflection, and transmittance. In the case of ultraviolet screening agents, ultraviolet screening agents that absorb and reflect a lot, and have a low transmittance, can be regarded as the best ultraviolet screening agents. Among them, reflectivity is considered to be most important because inorganic UV blocking agent reflects light differently from organic UV blocking agent and blocks ultraviolet rays.
There are three types of UVs: UV-A, UV-B and UV-C. UV-A reaches deeper into the skin's dermis and causes wrinkles, while UV-B reaches the epidermal layer of the skin and causes sunburn. It is important to increase both of these because SPF represents only the blocking ability of UV-B and PA index represents the blocking ability of UV-A. The reflectance of the ultraviolet screening agent according to Example 1 and the comparative example was measured to see how much the ultraviolet light was reflected.
As shown in FIG. 7, the titanium dioxide according to the comparative example shows higher efficiency in reflectance. In the comparative example, the reflectance is constantly changed by 10 nm difference before the wavelength of 360 nm, but the reflectance is increased exponentially in the ultraviolet region after 360 nm. That is, in the ultraviolet absorption region, conventional anatase-type titanium dioxide exhibits a higher absorption rate and reflectance than that of Example 1.
<
The results of thermogravimetric analysis (TGA) of titanium dioxide according to Example 1 and Comparative Example will be described with reference to FIG. FIG. 9 is a graph showing adsorption rates of waste materials of
In
On the other hand, adsorption experiments were carried out on the samples using glycerin, which is considered to be most similar to the skin wastes. Ethanol and glycerine were mixed at a ratio of 7: 3 and then adsorbed through TGA. Ethanol was added to adsorb the high viscosity glycerin to the sample while vaporizing it.
As shown in FIG. 8, the titanium dioxide according to the comparative example shows an adsorption rate of 0.000815 mol, and the titanium dioxide according to Example 1 shows an adsorption rate of 0.011971 mol. The error range is between 0.02 and 0.03. As a result, it was found that the titanium dioxide of Example 1 exhibited an adsorption rate of 14.7 times that of the titanium dioxide according to the comparative example, and it can be seen that there is a large difference in the ability to absorb wastes.
<Comparative Experiment 6>
With reference to FIG. 9, results of evaluation of ultraviolet shielding ability of titanium dioxide according to Examples 1 to 4 and Comparative Examples will be described. FIG. 9 is a graph showing the results of measurement of ultraviolet reflectance by mixing
As described above, the wastewater absorbency of Example 1 is better than that of Example 1, while the UV absorptivity of Comparative Example is comparatively good. Therefore, as described above, in order to satisfy both the ultraviolet shielding ability and the wastes absorbing ability, the mixture of Example 1 and Comparative Example was mixed and classified into Examples 2 to 4 according to their mixing ratios.
In Comparative Experiment 6, ultraviolet shielding ability evaluation using UV was carried out for each of Examples 2 to 4 and Comparative Examples in which the mixing ratios of Example 1 and Example 1 were 70%, 50%, and 30%, respectively.
As shown in FIG. 9, the reflectance is similarly low from 200 nm to 350 nm, which is considered to be a mechanical error, and the error is about 10%. The range of 350 nm to 400 nm shows UV-A blocking ability, which shows similar reflectance in Comparative Example 4 and Comparative Example 3, and reflectance in Comparative Example 1 is reduced to half.
These results indicate that the comparative example 3 and the comparative example 4 show better characteristics on the UV blocking surface.
<Comparative Test 7>
The results of adsorption experiments of titanium dioxide according to Examples 1 to 4 and Comparative Example will be described with reference to FIG. FIG. 10 is a graph showing the results of measuring the adsorption rate of waste materials by mixing TiO 2 according to the present embodiment and Comparative Example at a ratio.
In this experiment, the evaluation of glycerin adsorption capacity was performed using thermogravimetric analysis (TGA) of titanium dioxide according to Examples 1 to 4 and Comparative Examples.
Since the desired material is a material having a high ultraviolet ray shielding ability and high ability to adsorb waste materials, the same material as in Comparative Experiment 6 was tested for adsorption to the sample using glycerin.
As a result of measurement, Example 1 showed the highest adsorption capacity. Next, the adsorption capacity of Example 2 in which the mixing ratio of titanium dioxide in Example 1 was 70% was about 0.7 g. Example 3 shows an adsorption capacity of about 0.4 g. This is a result of the mixing ratio of the pore volume and the surface area of the first embodiment. That is, the ultraviolet shielding ability can be said to be excellent in the order of Comparative Examples, Examples 4 and 3, and the ability to adsorb waste products is superior in the order of Example 1, Example 2, and Example 3. Thus, it can be said that the case of Example 3, which is excellent in adsorptivity and has a high ultraviolet shielding ability, is suitable for a material of an ultraviolet screening agent. However, considering the manufacturing tolerance and the experimental error, it is preferable that the mixing ratio of Example 1 is mixed at a ratio of 45% to 55%.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, A multifunctional complex for cosmetics having a waste-absorbing capability and a method for manufacturing the same
Claims (10)
And a second step of synthesizing porous spherical titanium dioxide (TiO2) by adding acetone and water to the titanium glycolate,
And a third step of mixing the porous spherical titanium dioxide (TiO2) and the Anatase phase titanium dioxide (TiO2)
Wherein the porous spherical titanium dioxide (TiO2) is mixed with 45 to 55 weight percent of the total mixture.
In the first step,
The above titanium butoxide was added to ethylene glycol,
A step (1-1) of stirring the ethylene glycolate added with the titanium butoxide under a predetermined temperature;
A second step of adding acetone and water to the ethylene glycolate to which the titanium butoxide has been added and stirring the mixture;
A first step of washing after the white precipitate is formed as the stirring progresses; And
And drying the washed white precipitate. The method for manufacturing a multifunctional composite for cosmetics according to claim 1,
Wherein the white precipitate is washed by ethanol in the step 1-3, and has a capability of absorbing ultraviolet rays and absorbing skin wastes.
Wherein the pores of the porous spherical titanium dioxide are formed by the acetone and water added in the step 1-2.
Wherein the pores are formed while water adhered to the outer surface of the porous spherical titanium dioxide penetrates into the inside of the surface due to the density difference, and has a capability of absorbing ultraviolet rays and absorbing skin wastes.
Wherein the porous spherical titanium dioxide has a BET surface area of 197 m 2 / g to 217 m 2 / g.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020039819A (en) * | 2000-11-22 | 2002-05-30 | 이병철 | The method for preparation of sun protecting complex powder |
| KR20080094675A (en) * | 2006-02-01 | 2008-10-23 | 콜로로삐아 이탈리아 에스.피.에이 | Method for the preparation of aqueous dispersions of tio2 in the form of nanoparticles, and dispersions obtainable with this method |
| KR20100030761A (en) * | 2008-09-11 | 2010-03-19 | 한국기초과학지원연구원 | Method for preparation of monodispersed anatase titanium dioxide nanoparticle |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020039819A (en) * | 2000-11-22 | 2002-05-30 | 이병철 | The method for preparation of sun protecting complex powder |
| KR20080094675A (en) * | 2006-02-01 | 2008-10-23 | 콜로로삐아 이탈리아 에스.피.에이 | Method for the preparation of aqueous dispersions of tio2 in the form of nanoparticles, and dispersions obtainable with this method |
| KR20100030761A (en) * | 2008-09-11 | 2010-03-19 | 한국기초과학지원연구원 | Method for preparation of monodispersed anatase titanium dioxide nanoparticle |
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| Title |
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| Hyung Kyun Yu et al., Chem. Mater. 20, pp2704-2710, 2008 * |
| Hyung Kyun Yu et al., Chem. Mater. 20, pp2704-2710, 2008* |
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