KR19990064590A - The Making Method of Cowplex Nano Sol - Google Patents
The Making Method of Cowplex Nano Sol Download PDFInfo
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- KR19990064590A KR19990064590A KR1019990013408A KR19990013408A KR19990064590A KR 19990064590 A KR19990064590 A KR 19990064590A KR 1019990013408 A KR1019990013408 A KR 1019990013408A KR 19990013408 A KR19990013408 A KR 19990013408A KR 19990064590 A KR19990064590 A KR 19990064590A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 235000019441 ethanol Nutrition 0.000 claims description 8
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 8
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- 238000009775 high-speed stirring Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 241000282414 Homo sapiens Species 0.000 abstract description 12
- 235000013361 beverage Nutrition 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 6
- 239000004599 antimicrobial Substances 0.000 abstract description 4
- 229920001410 Microfiber Polymers 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 3
- 235000013402 health food Nutrition 0.000 abstract description 3
- 239000003658 microfiber Substances 0.000 abstract description 3
- 239000011368 organic material Substances 0.000 abstract description 3
- 239000002244 precipitate Substances 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- -1 elvan Inorganic materials 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052640 jadeite Inorganic materials 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000000825 pharmaceutical preparation Substances 0.000 description 2
- 229940127557 pharmaceutical product Drugs 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000011882 ultra-fine particle Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0004—Preparation of sols
- B01J13/0043—Preparation of sols containing elemental metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
본 발명은 35nm∼50nm 극세 분말화하여 각종 액상타입의 용매에 희석하여도 침전이 되질 않아 매우 다양한 용도로 활용하기 위한 방법으로서 수지에 이겨 넣거나 유기성 물질에 합성하기도 하며 물에 희석하여 졸타입(Sol Type)의 액상으로 전환시킨 후 인체 무해성 무기질 항균제용 또는 의약품용 건강식 음료 등 매우 광범위하게 응용 할 수도 있고 더욱이 우리 인간의 삶에 편리함을 동반할 뿐만아니라 기능성 섬유로 만들기 위해서 매우 어려운 문제점들을 복합 나노미터(nm) 파우더나 혹은 졸(Sol)을 이용하므로 0.01㎛의 극세사(極細絲)를 방사시키는데에 있어서 모든 문제점들의 해결안을 제시한다.The present invention does not precipitate even when diluted in various liquid type solvents to form an ultra-fine powder 35nm ~ 50nm as a method for utilizing in a variety of applications, such as to overcome the resin or synthesized in an organic material and dilute in water sol type (Sol After converting to liquid type, it can be applied to a wide range of applications such as harmless inorganic antimicrobial agent or health food beverage for medicine. Furthermore, it is not only convenient for human life but also very difficult to make functional fiber. The use of metric (nm) powders or sol (Sol) solves all the problems in radiating microfibers of 0.01 μm.
그러므로서 우리의 생활주변의 일상용품류를 포함하는 기능성 및 생명공학(Biotechnology)으로 연계시켜 주는 절대적 필요성이 도출되기도함으로 이에 우리 신체내는 물론이거니와 외부의 유해성 세균류까지 인체를 보호해 주어 우리 인간의 삶을 건강하게 유지 할 수 있도록 한 것이다.Therefore, the absolute necessity of linking functional and biotechnology including daily necessities around our lives is derived, thus protecting the human body not only in our body but also harmful bacteria from outside. To keep you healthy.
Description
본 발명은 35nm∼50nm 극세 분말화하여 각종의 용매액상에 희석하여도 침전이 되질 않아 매우 다양한 용도로 활용하기 위한 방법으로서 수지에 이겨 넣거나 유기성 물질에 합성하기도 하며 물에 희석하여 졸타입(Sol Type)의 액상으로 전환시킨 후 인·축 무해성 무기질 항균제용 또는 의약품용 건강식 음료 등 매우 광범위하게 응용할수도 있으며 더욱이 우리 인간의 삶에 편리함을 동반할 뿐만아니라 기능성 섬유로 만들기 위해서 매우 어려운 문제점들을 복합 나노미터(nm) 파우더나 혹은 졸(Sol)을 이용하므로 0.01㎛의 극세사(極細絲)를 방사시키는데에 있어서 모든 문제점들의 해결안을 제시한다.The present invention does not precipitate even when diluted in various solvent liquids by the 35nm ~ 50nm ultra-fine powder as a method for utilization in a wide variety of applications, such as to overcome the resin or synthesized in an organic material and diluted in water sol type (Sol Type After converting to a liquid phase, it can be applied to a wide range of applications such as phosphorus and toxic harmless inorganic antimicrobials or health food beverages for medicines. Furthermore, it is not only convenient for human life but also very difficult to make functional fibers. The use of metric (nm) powders or sol (Sol) solves all the problems in radiating microfibers of 0.01 μm.
그러므로서 우리의 생활주변의 일상용품류를 포함하는 기능성 및 생명공학(Biotechnology)으로 연계시켜 주는 절대적 필요성이 도출되기도함으로 이에 우리 신체내는 물론이거니와 외부의 유해성 세균류까지 인체를 보호해 주어 우리 인간의 삶을 건강하게 유지 할 수 있도록 한 것이다.Therefore, the absolute necessity of linking functional and biotechnology including daily necessities around our lives is derived, thus protecting the human body not only in our body but also harmful bacteria from outside. To keep you healthy.
우리가 삶을 영위하면서 인간이 공통적으로 추구하는 것은 건강하게 오랫동안 장수하는 것이 우리가 열망하는 바램이다.As we live our lives, the common pursuit of human beings is our desire to live long, healthy lives.
그러나 우리의 생활 주변의 여건은 우리가 추구하는 열망과 정반대방향으로 진행되는 것을 느끼고 있으므로 이러한 대책안들을 마련하여 대응책을 세워서 진행시키고 있으나 이 또한 매우 미흡하게 접근될 수 밖에 없는 실정이다.However, we feel that the conditions around our lives are going in the opposite direction to our aspirations, so we have prepared these countermeasures and proceeded with countermeasures.
특히 문명의 발달이 되면 될수록 불균형적인 형태들이 도출되어가고 우리의 생활의 주변에서는 새로운 병균들이 극치에 이루게되어 인간의 수명을 단축시키는 주범들이 되고 있다.In particular, as civilization develops, imbalanced forms are drawn out, and new germs reach extremes in our surroundings, leading to shortening of human life.
그래서 이러한 문제점들의 해결안을 마련하기 위해서 기능성이 있는 소재를 이용한 각종의 약품 및 생활용품과 의류등이 앞다투어 상품군(群)이 형성되어 가고 있으나 이에 따른 여러 가지의 문제점들이 지적되고 있는 실정이다.Therefore, in order to solve these problems, a variety of medicines, household goods and clothing using functional materials have been formed, and product groups have been formed. However, various problems have been pointed out.
더욱이 이러한 형태들은 한식적 기능성으로 성분을 소멸하고 제2차의 오염원이 되기도 하여 우리 인간의 귀중한 생명을 위협하고 있는 실정이다.Moreover, these forms are threatening the precious life of our human beings by extinguishing ingredients and becoming secondary pollutants with Korean food functionality.
상기 서술한 내용들과 같이 복합적이고 다양한 형태의 문제점들을 기능성이 소실되지 않고 어느 곳이든 합첨하여도 기능성이 도출되어 의약품으로나 기타의 식음료으로나 기타의 식음료 등의 주요 성분으로 전환되어지는 복합 나노 입자가 되는 발명품이다.As described above, complex nanoparticles that are complex and have various forms of problems do not lose their functionality, and are combined with them wherever they are, so that the functional nanoparticles are converted into pharmaceuticals, other foods and beverages, or other ingredients such as food and beverage. It is an invention to become.
본 발명은 상기한 지금까지 문제점들을 감안하여 35nm∼50nm 극세분말파우더인 겔(Gel)에서 졸(Sol)로 전환점을 오르고 내려갈 수도 있으며 이때 유기성(有機性)의 희석 용매액상으로 이용하기도 하며 또한 물을 이용하여 수용성 타입의 졸(Sol)상태로 전환시키기도하는데 우리 신체의 모공 0.01㎛의 공극을 넘나들면서 치료제는 물론 첨가제로 우리의 인체에 유익성을 주게되는 역할을 하도록 한다.In view of the problems described above, the present invention may move up and down the transition point from gel (Gel), which is a 35 nm to 50 nm ultra-fine powder powder, to a solvent, and may also be used as an organic dilute solvent solution and water. It is also used to convert the water-soluble sol (Sol) state of the pores of our body by passing through the pores of 0.01㎛, which serves to benefit our body as a therapeutic agent as well as additives.
특히 원적외선 다량으로 함축하고 있는 옥석과 맥반석, 게르마늄등 무기질 광물을 나노미터(nm)단위로 극세입자로 쪼개어서 식음료는 물론이거니와 의약품, 우리 인간의 생활용품등으로 이용할 수 있다.In particular, mineral minerals such as jadeite, elvan, germanium, etc., which are contained in a large amount of far infrared rays, can be broken down into ultrafine particles in nanometer (nm) units, which can be used for food and beverages, as well as pharmaceutical products and human life products.
더욱이 이산화티탄(Tio2)을 이용하여 광촉매(Light Cataoyst)를 극세 분말로 쪼개어진 파우더와 또는 용매액을 첨가시켜 졸(Sol) 상태로 전환시켜 인체무해성 무기질 항균제용으로 이용 시킬 수 있으며 직조가 끝난 직물에 졸(Sol)을 가볍게 뿌려 항균기능이 수십회 세탁해도 기능이 살아있으며 더욱이 입고 있는 옷에 가볍게 뿌려만 주어도 항균기능이 발휘할 수 있게 된다.Furthermore, the light cataoyst can be converted into a sol state by adding a powder and a solvent solution to the light cataoyst using titanium dioxide (Tio 2 ), which can be used for a harmless inorganic antimicrobial agent. Spray the finished fabric lightly with a sol (Sol), even if the antibacterial function washes dozens of times the function is alive, and even lightly sprayed on the clothes you are wearing will be able to exhibit antibacterial function.
그러므로서 이러한 복합 나노미터파우더(nm Powder) 및 졸(Sol)은 우리인간에게 한발 앞선 기술과 접목시키므로 건강하고 행복한 삶을 유지할 수 있도록 한 것이다.Therefore, these composite nanometer powder (nm powder) and sol (sol) combines technology with one step ahead of our human beings to maintain a healthy and happy life.
도1은 본 발명을 실시하는데 따른 공정흐름 예시도.1 is an exemplary process flow diagram for practicing the present invention.
상기한 목적을 달성하기 위한 본 발명을 실시 예에 따라 상세히 설명하면 다음과 같다.When explaining the present invention in detail according to the embodiment for achieving the above object is as follows.
실시예1;Example 1;
30㎛∼40㎛ 게르마늄 파우더 30∼40중량%에 질소분위기의 분쇄기에 넣는 공정과,Putting 30-40 wt% germanium powder in 30-40 wt% into a pulverizer in a nitrogen atmosphere,
질소분위기(CH3CH2CH2OH)의 분쇄기에 증류수(H2O)를 80∼90중량% 프로필 알콜(Propyl Alcohol) 노르말을 2∼5중량%를 넣은 후 섞어 분쇄기에 주입시킨 다음 교반시켜 현탁액 상태로 만드는 공정과,Distilled water (H 2 O) is added to the pulverizer of nitrogen atmosphere (CH 3 CH 2 CH 2 OH) and 80 to 90% by weight of propyl alcohol (Propyl Alcohol) is added. The suspension process,
상기의 현탁액을 40℃∼50℃ 온도로 맞춘상태에서 30분∼40분동안 고속 교반을 시켜 주어 현탁액이 층분리를 되는 과정을 관찰하는 제조공정과,A manufacturing step of observing a process of separating the suspension by performing high-speed stirring for 30 to 40 minutes while keeping the suspension at a temperature of 40 ° C to 50 ° C;
상기의 2개층 분리가 된것에 에틸알콜(Ethylalcohol)(C2H5OM) 10∼15중량% 서서히 20분∼25분동안 첨가 시키는 공정과,10 to 15% by weight of ethyl alcohol (Ethylalcohol) (C 2 H 5 OM) is slowly added to the two layers separated for 20 to 25 minutes,
상기 합첨된 합성물에 다시 질산(HNO3) 0.3∼0.7중량%를 넣는 공정과,Adding 0.3 to 0.7% by weight of nitric acid (HNO 3 ) again to the compounded compound;
상기와 같은 공정에서 얻어진 혼합물을 80℃∼90℃ 온도에서 8∼9시간동안 격렬하게 교반시켜 분쇄시켜 주는 제조공정이다.It is a manufacturing process which grind | pulverizes the mixture obtained by the above process at 80 degreeC-90 degreeC, stirring vigorously for 8 to 9 hours.
실시예2;Example 2;
30㎛∼40㎛ 게르마늄 파우더 30∼40중량%에 질소분위기의 분쇄기에 넣는 공정과,Putting 30-40 wt% germanium powder in 30-40 wt% into a pulverizer in a nitrogen atmosphere,
질소분위기(CH3CH2CH2OH)의 분쇄기에 증류수(H2O)를 80∼90중량% 프로필 알콜 (Propyl Alcohol) 노르말을 2∼5중량%를 넣은 후 섞어 분쇄기에 주입시킨 다음 교반시켜 현탁액 상태로 만드는 공정과,Distilled water (H 2 O) is added to the pulverizer of nitrogen atmosphere (CH 3 CH 2 CH 2 OH) and 80 to 90% by weight of propyl alcohol (Propyl Alcohol) is added. The suspension process,
상기의 현탁액을 40℃∼50℃ 온도로 맞춘상태에서 30분∼40분동안 고속 교반을 시켜 주어 현탁액이 층분리를 되는 과정을 관찰하는 제조공정과,A manufacturing step of observing a process of separating the suspension by performing high-speed stirring for 30 to 40 minutes while keeping the suspension at a temperature of 40 ° C to 50 ° C;
상기의 2개층 분리가 된것에 에틸알콜(Ethylalcohol)(C2H5OM) 10∼15중량% 서서히 20분∼25분동안 첨가 시키는 공정과,10 to 15% by weight of ethyl alcohol (Ethylalcohol) (C 2 H 5 OM) is slowly added to the two layers separated for 20 to 25 minutes,
상기 합첨된 합성물에 다시 질산(HNO3) 0.3∼0.7중량%를 넣는 공정과,Adding 0.3 to 0.7% by weight of nitric acid (HNO 3 ) again to the compounded compound;
상기와 같은 공정에서 얻어진 혼합물을 80℃∼90℃ 온도에서 8∼9시간동안 격렬하게 교반시켜 분쇄시켜 주는 제조공정과,A manufacturing step of pulverizing the mixture obtained in the above process by vigorously stirring at 80 ° C. to 90 ° C. for 8 to 9 hours,
상기에서 얻어진 복합 나노미터 졸(Sol) 상태의 액상을 건조기에 넣어 수분을 증발시켜 파우더를 얻는 제조공정과,A manufacturing process of obtaining a powder by evaporating water by putting a liquid in the state of the composite nanometer sol (Sol) obtained above into a dryer;
상기에서 얻어진 파우더를 용매제를 선정하여 졸(Sol) 상태로 전환시키는 제조전반에 걸친 제조공정이다.The powder obtained above is a manufacturing process throughout the manufacturing process which selects a solvent and converts into a sol (Sol) state.
본 발명은 35nm∼50nm 극세 분말화하여 각종 액상타입의 용매제에 희석하여도 침전이 되질 않아 매우 다양한 용도로 활용하기 위한 방법으로서 수지에 이겨 넣거나 유기성 물질에 합성하기도 하며 물에 희석하여 졸타입(Sol Type)의 액상으로 전환시킨 후 인체무해성 무기질 항균제용 또는 의약품용 건강식 음료 등 매우 광범위하게 응용할수도 있고 더욱이 우리 인간의 삶에 편리함을 동반할 뿐만아니라 기능성 섬유로 만들기 위해서 매우 어려운 문제점들을 복합 나노미터(nm) 파우더나 혹은 졸(Sol)을 이용하므로 0.01㎛의 극세사(極細絲)를 방사시키는데에 있어서 모든 문제점들의 해결안을 제시한다.The present invention is a method for utilization in a wide variety of applications as it does not precipitate even when diluted to 35nm ~ 50nm ultrafine powders in various liquid solvents, it is put into a resin or synthesized in an organic material and diluted in water sol type ( After converting to Sol type), it can be applied to a wide range of applications, such as human health harmless inorganic antimicrobial agents or health food beverages for medicines, and it is not only convenient for human life but also very difficult to make functional fibers. The use of metric (nm) powders or sol (Sol) solves all the problems in radiating microfibers of 0.01 μm.
위와 같은 문제점들을 감안하여 35nm∼50nm 극세 분말파우더인 겔(Gel)에서 졸(Sol)로 전환점을 오르고 내려갈 수도 있으며 이때 유기성(有機性) 용매제로 희석하여 이용하기도 하며 또한 물을 이용하여 수용성 타입의 졸(Sol)상태로 전환시키기도하는데 우리 신체의 모공 0.01㎛ 공극을 넘나들면서 우리의 인체에 유익성을 주게되는 역할을 하도록 한다.In view of the above problems, the transition point from 35nm to 50nm ultra fine powder gel to sol can be raised and lowered, and it can be diluted with organic solvent and used as water-soluble type. It also converts into the Sol state, which passes the pores of our body 0.01 μm and serves to benefit our body.
특히 원적외선이 다량으로 함축하고 있는 옥석과 맥반석, 게르마늄등 무기질 광물을 나노미터(nm)단위로 극세입자로 쪼개어서 식음료는 물론이거니와 의약품, 우리 인간의 생활용품등으로 접목시켜서 이용할 수 있도록 하였다.In particular, mineral minerals such as jadeite, ganbanite, and germanium, which are implied in large quantities, are broken down into ultrafine particles in nanometer units to be used for food and beverages, as well as pharmaceutical products and human life products.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020096433A (en) * | 2001-06-19 | 2002-12-31 | 김미경 | Organic of Germanium Method |
| KR100435314B1 (en) * | 2001-04-13 | 2004-06-10 | (주)나노닉스 | Method for preparation of inorganic nanoparticles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100435314B1 (en) * | 2001-04-13 | 2004-06-10 | (주)나노닉스 | Method for preparation of inorganic nanoparticles |
| KR20020096433A (en) * | 2001-06-19 | 2002-12-31 | 김미경 | Organic of Germanium Method |
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