CN113768817A - Preparation method of nano-diamond makeup product - Google Patents

Preparation method of nano-diamond makeup product Download PDF

Info

Publication number
CN113768817A
CN113768817A CN202111163508.XA CN202111163508A CN113768817A CN 113768817 A CN113768817 A CN 113768817A CN 202111163508 A CN202111163508 A CN 202111163508A CN 113768817 A CN113768817 A CN 113768817A
Authority
CN
China
Prior art keywords
diamond
nano
beaker
atmosphere
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111163508.XA
Other languages
Chinese (zh)
Inventor
栗正新
张鹏
陈冰威
黄雷波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan University of Technology
Original Assignee
Henan University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan University of Technology filed Critical Henan University of Technology
Priority to CN202111163508.XA priority Critical patent/CN113768817A/en
Publication of CN113768817A publication Critical patent/CN113768817A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67Vitamins
    • A61K8/676Ascorbic acid, i.e. vitamin C
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/02Preparations for care of the skin for chemically bleaching or whitening the skin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00Manufacture or treatment of nanostructures
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/25Diamond
    • C01B32/28After-treatment, e.g. purification, irradiation, separation or recovery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41Particular ingredients further characterized by their size
    • A61K2800/413Nanosized, i.e. having sizes below 100 nm
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59Mixtures
    • A61K2800/592Mixtures of compounds complementing their respective functions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Nanotechnology (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Dermatology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Birds (AREA)
  • Composite Materials (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Cosmetics (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention discloses a preparation method of a nano-diamond makeup product, belonging to the field of diamond application. The main process comprises the steps of strong acid treatment of the nano-diamond and N2The method comprises four parts of atmosphere vacuum heat treatment, surface functionalization treatment of the nano-diamond and combination of the nano-diamond and vitamin C. The invention has simple operation, and the product has low toxicity, biocompatibility and chemical inertnessThe nano diamond can be combined with the skin surface, reduce the water loss through skin, influence the functions of the water and lipid skin surface and protect the skin from aging.

Description

Preparation method of nano-diamond makeup product
Technical Field
The invention relates to the field of diamond application, in particular to a preparation method of a nano-diamond makeup product.
Background
The development of diamond has been greatly improved from the discovery of diamond use to the synthesis of synthetic diamond, especially the artificial synthesis of diamond in our country, and many synthetic methods of diamond have provided a solid foundation for the application and research of diamond in the past for a long time. The nano-diamond is distinguished from other materials by virtue of excellent properties such as low toxicity, biocompatibility, larger specific surface area and the like, attracts the attention of many researchers, carries out deep research on the nano-diamond, carries out surface modification and modification on the nano-diamond, and further gradually carries out research combined with biomacromolecules.
Currently, nanodiamonds are widely used in the field of fine chemical engineering by virtue of their excellent physicochemical properties, and in particular, in skin care products, nanodiamonds are gradually used by researchers due to low toxicity and biocompatibility. Currently, there are hundreds of cosmetic products containing nanodiamond. However, as the research progresses, some problems are exposed, for example, the nano-diamond has a high specific surface energy, a large specific surface area, and is in a thermodynamically unstable state, and in addition, the surface activity of the nano-diamond is also large, and thus the agglomeration phenomenon between particles often occurs. Therefore, it is a major focus of current research on how to solve the agglomeration of the nano-diamond particles and effectively treat the surfaces of the nano-diamond particles to exert the excellent properties of the nano-diamond. Because the nano-diamond has incomparably excellent performances of other materials, the nano-diamond has a wide application prospect, particularly in the aspect of biomedicine, in recent years, the nano-diamond is considered to be a suitable carrier of a medicament for improving skin diseases, and various functional groups on the surface of the nano-diamond can be combined in a chemical bond mode for cancer diagnosis and treatment medicaments, and the nano-diamond becomes one of the main targets of the current cancer medicament research. In addition, the nano-diamond can improve the durability and stability of the drug and disperse the drug which is not dissolved in water. Also, since nanodiamonds have a large surface area, particles are loaded with a large amount of therapeutic agents, and thus, nanodiamonds are gradually applied to the field of fine chemical engineering, particularly in cosmetics and health products.
In the field of nano-diamond impregnated cosmetics, because of its good absorption properties, it can be formulated into a variety of skin care products, such as face washes, soaps, etc. There are now hundreds of cosmetic products on the market that contain nanodiamonds. Moreover, experiments show that the nano diamond can be combined with the skin surface, reduce the water loss in the skin, influence the functions of the water and lipid skin surface and protect the skin from aging. The nano-diamond has great potential in the aspect of ultraviolet protection, namely sunscreen cream due to unique optical properties. Therefore, nanodiamonds have been widely popular in cosmetics due to the properties of biocompatibility and low toxicity.
Disclosure of Invention
The invention aims to: the nano-diamond is subjected to strong acid treatment by adopting a water bath heating mode, so that the nano-diamond can be uniformly heated, and the nano-diamond can be subjected to dispersion treatment to a certain degree. And N is2The heat treatment is carried out under high temperature and vacuum, the dispersibility of the nano-diamond can be improved, and the nano-diamond is N2Under the protection of atmosphere, the nano-diamond can isolate water molecules in the air, and meanwhile impurities are prevented from being generated, but the biggest effect of the nano-diamond is to remove hydroxyl groups and other groups on the surface of the nano-diamond. The nano-diamond treated by strong acid has good effect when being combined with vitamin C, and has certain effect on whitening.
Technical scheme
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a. the strong acid treatment of the nano-diamond comprises the following specific steps: uniformly mixing the nano-diamond with concentrated nitric acid, carrying out strong acid treatment, and washing and drying the treated nano-diamond for later use;
b. the N2 atmosphere vacuum heat treatment comprises the following specific steps: putting the treated nano-diamond into a crucible, putting the crucible into a vacuum tube furnace, vacuumizing, filling nitrogen atmosphere, and performing heat treatment: heating at a heating rate of 10 ℃/min to 20 ℃/min, keeping the temperature constant for 2 hours when the temperature reaches 600 ℃ to 800 ℃, cooling to 200 ℃ without closing the atmosphere after keeping the temperature, opening the vacuum tube furnace, closing the atmosphere, and naturally cooling to room temperature;
c. the surface functionalization treatment of the nano diamond comprises the following specific processes: adding the nano-diamond subjected to high-temperature nitrogen heat treatment into a small dry clean beaker, adding concentrated hydrochloric acid, completely immersing the nano-diamond by the addition of the concentrated acid in the beaker, uniformly stirring, standing for 24h to 26h, pouring the upper layer acid solution into a waste liquid barrel, leaving the lower layer of nano-diamond powder, cleaning with deionized water until the pH value is about 7, repeating the operation for more than three times, and drying the obtained nano-diamond in a drying oven;
d. the specific process of combining the nano-diamond with the vitamin C is as follows: placing the nano-diamond with the functionalized surface in a dry and clean beaker, adding vitamin C liquid into the beaker, completely soaking the nano-diamond, uniformly mixing, standing for 2 to 4 hours, cleaning with deionized water, then placing the lower layer nano-diamond powder layer in a drying oven, drying at 110 ℃ for 2 to 4 hours, and taking out.
The preferred process of strong acid treatment in step a of the present invention is: 1.5g of nano-diamond is taken, and 10ml to 20ml of concentrated HNO is taken3Slowly pouring into a beaker, uniformly mixing, and heating for 2 to 4 hours at a temperature of between 80 and 100 ℃.
The preferable washing and drying process in the step a of the invention comprises the following steps: and pouring the supernatant in the beaker into a waste liquid barrel, placing the beaker containing the nano-diamond sediments in a ventilated place, cooling to room temperature, and standing for 18-24 h.
The invention has the beneficial effects that:
1. the nano-diamond is subjected to strong acid treatment in a water bath heating mode, so that the nano-diamond can be uniformly heated, and the nano-diamond can be subjected to dispersion treatment to a certain degree;
2. and N is2The heat treatment is carried out under high temperature and vacuum, the dispersibility of the nano-diamond can be improved, and the nano-diamond is N2Under the protection of atmosphere, the nano-diamond can isolate water molecules in the air and simultaneously avoid the generation of impurities, but the maximum effect of the nano-diamond is to remove hydroxyl groups and other groups on the surface of the nano-diamond;
3. the nano-diamond treated by strong acid has good effect when being combined with vitamin C, and has certain effect on whitening.
Detailed Description
The invention is further described below with reference to specific examples:
example 1:
a. 1.5g of nano-diamond is taken, and 10ml of concentrated HNO is taken3Slowly pouring into a beaker, uniformly mixing, heating at 80 ℃ for 2h, pouring supernatant in the beaker into a waste liquid barrel, placing the beaker containing the nano-diamond sediments in a ventilated place, cooling to room temperature, and standing for 18 h;
b. putting the treated nano-diamond into a crucible, putting the crucible into a vacuum tube furnace, vacuumizing, filling nitrogen atmosphere, and performing heat treatment: heating at a heating rate of 10 ℃/min, keeping the temperature at 600 ℃ for 2h, cooling to 200 ℃ without closing the atmosphere after keeping the temperature, opening the vacuum tube furnace, closing the atmosphere, and naturally cooling to room temperature;
c. adding the nano-diamond subjected to high-temperature nitrogen heat treatment into a small dry clean beaker, adding concentrated hydrochloric acid, completely immersing the nano-diamond by the addition of the concentrated acid in the beaker, uniformly stirring, standing for 24h, pouring the upper layer acid solution into a waste liquid barrel, leaving the lower layer of nano-diamond powder, cleaning with deionized water until the pH value is about 7, repeating the operation for more than three times, and drying the obtained nano-diamond in a drying oven;
d. placing the surface-functionalized nano-diamond in a dry and clean beaker, adding 5ml of vitamin C liquid into the beaker, completely soaking the nano-diamond, uniformly mixing, standing for 2 hours, cleaning with deionized water, then placing the lower nano-diamond powder layer in a drying oven, drying at 110 ℃ for 2 hours, and taking out.
Example 2:
a. taking 1.5g of nano-diamond and taking 15ml of concentrated HNO3Slowly pouring into a beaker, uniformly mixing, heating at 90 ℃ for 3h, pouring supernatant in the beaker into a waste liquid barrel, placing the beaker containing the nano-diamond sediments in a ventilated place, cooling to room temperature, and standing for 20 h;
b. putting the treated nano-diamond into a crucible, putting the crucible into a vacuum tube furnace, vacuumizing, filling nitrogen atmosphere, and performing heat treatment: heating at a heating rate of 15 ℃/min, keeping the temperature at 700 ℃ for 2h, cooling to 200 ℃ without closing the atmosphere after keeping the temperature, opening the vacuum tube furnace, closing the atmosphere, and naturally cooling to room temperature;
c. adding the nano-diamond subjected to high-temperature nitrogen heat treatment into a small dry clean beaker, adding concentrated hydrochloric acid, completely immersing the nano-diamond in the amount of the concentrated acid in the beaker, uniformly stirring, standing for 25h, pouring the upper layer acid solution into a waste liquid barrel, leaving the lower layer of nano-diamond powder, cleaning with deionized water until the pH value is about 7, repeating the operation for more than three times, and drying the obtained nano-diamond in a drying oven;
d. placing the surface-functionalized nano-diamond in a dry and clean beaker, adding 10ml of vitamin C liquid into the beaker, completely soaking the nano-diamond, uniformly mixing, standing for 3 hours, cleaning with deionized water, then placing the lower nano-diamond powder layer into a drying oven, drying at 110 ℃ for 3 hours, and taking out.
Example 3:
a. 1.5g of nano-diamond is taken, and 20ml of concentrated HNO is taken3Slowly pouring into a beaker, uniformly mixing, heating at 100 ℃ for 4h, pouring supernatant in the beaker into a waste liquid barrel, placing the beaker containing the nano-diamond sediments in a ventilated place, cooling to room temperature, and standing for 24 h;
b. putting the treated nano-diamond into a crucible, putting the crucible into a vacuum tube furnace, vacuumizing, filling nitrogen atmosphere, and performing heat treatment: heating at a heating rate of 20 ℃/min, keeping the temperature at 800 ℃ for 2h, cooling to 200 ℃ without closing the atmosphere after keeping the temperature, opening the vacuum tube furnace, closing the atmosphere, and naturally cooling to room temperature;
c. adding the nano-diamond subjected to high-temperature nitrogen heat treatment into a small dry clean beaker, adding concentrated hydrochloric acid, completely immersing the nano-diamond in the amount of the concentrated acid in the beaker, uniformly stirring, standing for 26h, pouring the upper layer acid solution into a waste liquid barrel, leaving the lower layer of nano-diamond powder, cleaning with deionized water until the pH value is about 7, repeating the operation for more than three times, and drying the obtained nano-diamond in a drying oven;
d. placing the surface-functionalized nano-diamond in a dry and clean beaker, adding 15ml of vitamin C liquid into the beaker, completely soaking the nano-diamond, uniformly mixing, standing for 4 hours, cleaning with deionized water, then placing the lower nano-diamond powder layer in a drying oven, drying at 110 ℃ for 4 hours, and taking out.

Claims (2)

1. A method for etching a diamond monocrystal is characterized by comprising the following steps:
a. the strong acid treatment of the nano-diamond comprises the following specific steps: uniformly mixing the nano-diamond with concentrated nitric acid, carrying out strong acid treatment, and washing and drying the treated nano-diamond for later use;
b. the N2 atmosphere vacuum heat treatment comprises the following specific steps: putting the treated nano-diamond into a crucible, putting the crucible into a vacuum tube furnace, vacuumizing, filling nitrogen atmosphere, and performing heat treatment: heating at a heating rate of 10 ℃/min to 20 ℃/min, keeping the temperature constant for 2 hours when the temperature reaches 600 ℃ to 800 ℃, cooling to 200 ℃ without closing the atmosphere after keeping the temperature, opening the vacuum tube furnace, closing the atmosphere, and naturally cooling to room temperature;
c. the surface functionalization treatment of the nano diamond comprises the following specific processes: adding the nano-diamond subjected to high-temperature nitrogen heat treatment into a small dry clean beaker, adding concentrated hydrochloric acid, completely immersing the nano-diamond by the addition of the concentrated acid in the beaker, uniformly stirring, standing for 24h to 26h, pouring the upper layer acid solution into a waste liquid barrel, leaving the lower layer of nano-diamond powder, cleaning with deionized water until the pH value is about 7, repeating the operation for more than three times, and drying the obtained nano-diamond in a drying oven;
d. the specific process of combining the nano-diamond with the vitamin C is as follows: placing the nano-diamond with the functionalized surface in a dry and clean beaker, adding vitamin C liquid into the beaker, completely soaking the nano-diamond, uniformly mixing, standing for 2 to 4 hours, cleaning with deionized water, then placing the lower layer nano-diamond powder layer in a drying oven, drying at 110 ℃ for 2 to 4 hours, and taking out.
2. The production method according to claim 1, characterized in that: the specific step in the step a is to take 1.5g sodiumTaking 10ml to 20ml of concentrated HNO3Slowly pouring into a beaker, uniformly mixing, heating at 80-100 ℃ for 2-4 h, pouring supernatant in the beaker into a waste liquid barrel, placing the beaker containing the nano-diamond sediments in a ventilated place, cooling to room temperature, and standing for 18-24 h.
CN202111163508.XA 2021-09-30 2021-09-30 Preparation method of nano-diamond makeup product Pending CN113768817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111163508.XA CN113768817A (en) 2021-09-30 2021-09-30 Preparation method of nano-diamond makeup product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111163508.XA CN113768817A (en) 2021-09-30 2021-09-30 Preparation method of nano-diamond makeup product

Publications (1)

Publication Number Publication Date
CN113768817A true CN113768817A (en) 2021-12-10

Family

ID=78854616

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111163508.XA Pending CN113768817A (en) 2021-09-30 2021-09-30 Preparation method of nano-diamond makeup product

Country Status (1)

Country Link
CN (1) CN113768817A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821196A (en) * 2007-10-13 2010-09-01 纳米金刚石有限公司 Nanodiamond compounds synthesized by surface functionalization
CN103146230A (en) * 2013-02-08 2013-06-12 浣石 Nanodiamond derivative having hydroxy groups as terminal groups, and preparation method and use thereof
CN104529527A (en) * 2014-12-15 2015-04-22 湖南大学 Method for increasing surface roughness of man-made diamond single crystal
CN107929242A (en) * 2017-11-26 2018-04-20 郑州大学 Pharmaceutical carrier, drug composite based on Nano diamond and its preparation method and application
CN111778718A (en) * 2020-07-28 2020-10-16 河北工业大学 Preparation method of nano-diamond modified carbon fiber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821196A (en) * 2007-10-13 2010-09-01 纳米金刚石有限公司 Nanodiamond compounds synthesized by surface functionalization
CN103146230A (en) * 2013-02-08 2013-06-12 浣石 Nanodiamond derivative having hydroxy groups as terminal groups, and preparation method and use thereof
CN104529527A (en) * 2014-12-15 2015-04-22 湖南大学 Method for increasing surface roughness of man-made diamond single crystal
CN107929242A (en) * 2017-11-26 2018-04-20 郑州大学 Pharmaceutical carrier, drug composite based on Nano diamond and its preparation method and application
CN111778718A (en) * 2020-07-28 2020-10-16 河北工业大学 Preparation method of nano-diamond modified carbon fiber

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
孙陶利等: "纳米金刚石材料在生物医药领域中的应用", 《中国生物医学工程学报》 *
王芬芬等: "纳米金刚石表面修饰工艺研究", 《超硬材料工程》 *
窦志强等: "金刚石表面刻蚀技术研究进展", 《表面技术》 *
邓福铭等: "纳米金刚石表面改性处理及表面结构表征", 《金刚石与磨料磨具工程》 *

Similar Documents

Publication Publication Date Title
CN111348621B (en) Hydrolysable hydrogen production material using hydrogen-containing compound
CN111759751B (en) Whitening toothpaste excited by blue light LED and preparation method thereof
CN106075443B (en) A kind of gold cladding copper selenide nanoparticles and the preparation method and application thereof
CN107266056A (en) A kind of quantum ceramics and its formula, preparation method and application
CN107029777B (en) Composite visible light catalyst and its preparation method and application
CN108611088A (en) A kind of method that sonochemical method prepares ZnO quantum dot
CN105019012A (en) Method used for preparing subsize bismuth subcarbonate via hydrothermal method
CN108525683A (en) A kind of three-dimensional grapheme aeroge/silver bromide/silver photochemical catalyst and the preparation method and application thereof
CN108578764B (en) Rapid preparation method of bioglass/hydrogel composite material
CN112471173A (en) Preparation method of graphene antibacterial composite membrane and prepared antibacterial composite membrane
Mary et al. Phytochemical assisted synthesis of Ni doped ZnO nanoparticles using aloe vera extract for enhanced photocatalytic and antibacterial activities.
CN113768817A (en) Preparation method of nano-diamond makeup product
CN106479322A (en) A kind of aqueous glass paint of wearable environment protection and preparation method thereof
CN108785276A (en) A kind of purposes of radio therapy sensitization nano material
CN110201167B (en) Preparation method of enzyme-loaded bismuth selenide nano-particles capable of releasing oxygen under illumination
CN107416899A (en) A kind of nano wire α Bi2O3The preparation method of dusty material
CN108610460B (en) Active oxygen stimulation response type nano gel drug carrier and preparation method and application thereof
CN105148271A (en) Near-infrared light stimulation controllably responsive photo-thermal microcapsule having thermal therapy/chemotherapy double actions and preparation method of microcapsule
KR101798776B1 (en) The manufacturing methods of the hybrid composite ZnO/Graphene oxide for antibacterial activity
CN104492397A (en) Carboxyl polystyrene magnetic microspherical composite material for reducing ammonia release in smoke of cigarette and preparation method and application of carboxyl polystyrene magnetic microspherical composite material
CN107961375A (en) A kind of nano metal sulfide material and its preparation method and application
CN114984216A (en) Method for preparing nano gold/polyvinyl alcohol composite material by normal pressure plasma
CN108578785A (en) A kind of preparation method of magnetism self-healing property bio-vitric/hydrogel composite material
CN106902351A (en) The preparation method and application of CG J aggregations
CN108585058B (en) α -Fe for cosmetics2O3Preparation method of nano wafer and nano ring

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20211210

WD01 Invention patent application deemed withdrawn after publication