• 한국정보통신학회논문지
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• 제24권8호
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• pp.993-998
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• 2020

현재 인테리어의 기술은 세계적으로 발전하고 있다. 다양한 연구가 진행됨에 따라 가정 인테리어도 환경 조성을 위해 식물을 활용하는 경우가 증가하고 있다. 그러나 활용되는 식물들의 증가에 비해 해당 식물들의 성질을 제대로 인지하지 못하여 예상치 못한 사고가 발생하고 있다. 이에 따라 특정 식물들의 위험성에 대해 다양한 매체를 통해 알리고 있지만 사고가 지속적으로 발생하고 있다. 이에 본 논문에서는 우리 주변에서 흔하게 접할 수 있는 대중적인 독성 식물을 판별하는 합성곱 신경망 모델 기반의 독성 식물 판별 시스템을 제안하였다. 이를 위해 독성 식물 판별을 진행하기 앞서 네 종류의 모델을 구축하였고 각 모델들을 비교 분석하였다. 분석한 모델들에 대해 높은 정확성을 갖는 합성곱 신경망 모델을 제안하였다. 이를 통하여 독성 식물들을 판별할 수 있으며, 독성 식물로 인한 안전사고를 줄일 수 있다고 사료된다.

• Applied Microscopy
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• 제47권3호
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• pp.148-156
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• 2017

The wide distribution of redox-sensitive elements (RSE) as arsenic (As), cadmium (Cd), selenium (Se), and strontium (Sr) in the top soil of Siwaqa area are related to the weathering action of alkaline surface and groundwater on the parent rocks. The bioavailability, distribution, sorption, and ecotoxicity of As, Cd, Se, and Sr, of the wild plants and top soils in the study area were investigated. A total number of 23 surface soil samples and 23 plant samples were collected and analyzed for the most toxic elements. The uptake of elements by plants was dependent on the plant species and the concentration of elements in the soil. For example, Sr was the highest concentration in soil samples and plants, while Se was the lowest concentration in soil samples and pants. For the plants, the results showed that Bellevalia sp. had the highest elements uptake, while Allium rothii had the lowest elements uptake. The results of this work provide a valuable knowledge for understanding the bioavailability of some toxic elements in the soil and plants of Central Jordan. The results are expected to be of great help for the Jordanian Uranium Mining Company during their environmental risk assessments.

• 한국토양환경학회지
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• 제2권1호
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• pp.3-12
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• 1997

식물을 이용하여 오염된 토양에 존재하는 유기 및 무기 오염 물질을 제거하는 phytoremediation은 환경 정화를 위한 새로운 기술이다. 독성 중금속, 방사성 핵종 및 독성 유기 오염 물질을 제거하는데 이용될 수 있는 phytoremediation 에는 다음의 세가지 방법이 있다. (1) phytoextraction: 독성 중금속이나 방사성 핵종과 같은 무기 오염 물질을 수화가능한 부분에 축적하는 식물체를 이용하여 정화하는 방법, (2) phytodegradation: 독성 물질을 분해하는 효소를 분비하는 식물체를 이용하거나 효소를 생산해내는 미생물과 밀접한 연관이 있는 식물체를 이용하여 독성 물질을 무독성 물질로 전환하는 방법, 그리고 (3) phytostabilization: 독성 오염 물질을 용존 상태에서 침전 흑은 식물체의 조직이나 주변 토양 matrix에 흡착시켜 안정화시키는 방법이다. 이 기술은 기존의 어떤 처리 방법보다 더 효과적이고 경제적이다.

• 대한한의학회지
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• 제16권1호통권29호
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• pp.475-498
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• 1995

For the purpose of developing Korean Herbalogy with the plants of Urticaceae which grow wild and is planted in Korea, the these and writings on herbalogy, from literature of successive generations, have been thoroughly investigative and the results obtained were as follows: 1. There were totaled 11 genera and 44 species in Korea and among them medecinal plants are 9 genera, 19 species, some 43% in total but the number of species may be added because of similar plants. 2. According to the oriental name which can be used for medical purpose, the medicinal plants beloning to the Urticaceae were classified as Herba 10, Radix 8, Folium 3, Cortex 1, Flos 1, Rhizoma 1. Thus it was noticed that Herba was the main kind. 3. According to sum of 44 species in Urticaceae they were classified into Boehemeria genera 18, Urtica genera 9, Pliea genera 5, Elastosma genera 3, Parietaria genera 2, Pellionia genera 2, Achudemia 1, Debregeasia genera 1, Girardinia genera 1, Laportea genera 1, Nanocnide genera 1 etc. Thus it was noticed that Boehemeria genera was the main kind, some 41% in total. 4. According to nature and flavour of medicinal plants, they were classified into cold, cool; 6 each, wormth, heat; 4 each, balance 3. Thus it was noticed that cold and cool is the main in nature and flavour of medicinal plants. 5. According to the Properties and Principal Curative action, they were classified into, clearing up heat and toxin 9, drugs for urination an removing abscess 7, drugs for circulating blood and hemostasis 7, drugs for expelling wind 5, drugs for comporting embryo 4, 6. Comparing to whole medicinal plants 44 kinds, toxic durgs include minor toxin were 2 kinds, 5% of the whole. Thus toxic durgs were rare. From this result, It was revealed that the plants for medical purpose in Urticaceae was 43% kinds of the whole, in which Herba was mostly abundunt, toxic plants were so rare that it will be used for clinical treatments more easily. It is considered that many clinical experiments and approaches must be continued to use widely.

• 한국환경농학회지
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• 제12권3호
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• pp.264-280
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• 1993

The environmental pollutions were a serious problem in Korea recently. So many researcher have studied the effect of environmental pollution on plants and agro-ecosystem, but the basic mechanisms of environmental stresses were various. One of the important mechanisms was oxidative stress caused by active toxic oxygen. The toxic oxygen was generated by several stresses, abnormal temperature, many xenobiotics, air pollutants, water stress, fugal toxin, etc. In the species of toxic oxygen which is primary inducer of oxidative stresses, superoxide, hydrogen peroxide, hydroxyl radical and singlet oxygen were representative species. The scavenging systems were divided into two groups. One was nonenzymatic system and the other enzymatic system. Antioxidants such as glutathione, ascorbic acid, and carotenoid, have the primary function in defense mechanisms. Enzymatic system divided into two groups; First, direct interaction with toxic oxygen(eg. superoxide dismutase). Second, participation in redox reaction to maintain the active antioxidant levels(eg. glutathione reductase, ascorbate peroxidase, etc.).

• Journal of Ginseng Research
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• 제20권3호
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• pp.331-338
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• 1996

This study was conducted to screen the antagonistic plants on northern root-knot nematode (Meloidogyne) and to utilize those in its control. Egg hatching of M. hapla was found to be inhibited by 17 plant methanol extracts, and 11 plant extracts among them were also toxic to M. hapla second stage juvenile. Egg hatching of iW. hapla was also found to be inhibited by squeezed extracts of Cassia tora and Zea mays, and they were also toxic to M. hapla second stage juvenile. Extracts of Achyranthes japonica, Melia axedrach and Acorus graminens were toxic to M. hapla second stage with a juvenile mortality above 70clc at the 10 folds diluted concent ration and A. graminens was toxic to tested juvenile mortality above 50% at the 100 folds diluted concentration. The toxicity was directly propotional to the diluted concentration of the plant extracts and to the exposure period. Punica granatum, Acorns graminens and Melia axedrach were effective in inhibiting root penetration of JW. hapla juveniles, among of them p. granatum is most effective Percent inhibition of penetration by second and third stage juveniles into tomato slants penetrating by it was 72.7 and 82.4%, respectively.

• 대한본초학회지
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• 제31권4호
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• pp.27-33
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• 2016

Objective : For the purpose of developing Korean herbology of the plants to Fumariaceae in Korea, the literatures of the successive generations have been thoroughly investigated to prepare this article.Methods : Books and research papers about Herbology which published at home and abroad were examined.Results : A list was made about Fumariaceae plant which were cultivated or grew naturally in Korea, after investigated the data on domestic and foreign Fumariaceae plants. Out of those lists, serviceable plants were selected and with those available plants, their distributions were analysed and parts which can be used as medicines were divided into 3 categories such as oriental medicine name, scientific name and non-official name. Fumariaceae's properties flavor, channels they use, effects, and toxicity were also noted. Fumariaceae (grew in Korea) were divided into 3 classes with 23 species. Out of those, 2 classes with 9 species were found serviceable which indicates 39% of all. Out of all 23 species of Fumariaceae family, Corydalis genus were found 21 species, which were shown the most. Among Fumariaceae species, Corydalis genus were found 8 medicinal plants, which were shown the most. Out of all serviceable parts in Fumariaceae, Herba and Tuber parts took first place as 5 species. There are 2 toxic species and 3 toxic medicinal parts, the survey said.Conclusion : There were totaled to 3 genera and 23 species in Fumariaceae in Korea and among them medicinal plants are 2 genera, 9 species, some 39 in total.

• 한국안전학회지
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• 제9권1호
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• pp.89-94
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• 1994

Two methods, the numerical method of CPQRA and the manual method of IAEA, were used to estimate the effect distance from release and dispersion of toxic materials. The Gaussian plume model which has a weather stability class D with wind velocity of 5m/s was applied to calculate dispersion of toxic materials. Also, probit function were employed to evaluate the human fatality as a result of exposure to toxic gases. Furthermore, concentration of toxic materials corresponding to LC$_{50}$ for 30 min could be determined by setting Pr as 5.0 and solving the probit function. Calculations were conducted by employing chlorine and ammonia as toxic materials because they are not only most commonly used In chemical plants but also very harmful to humans. Calculated results by employing toxic materials indicated that the effect distance from the CPQRA method was between the minimum and maximum distance from the method proposed by IAEA.A.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2001년도 추계학술발표대회
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• pp.177-180
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• 2001

Tobacco plants were transformed by A. tumefaciens harboring human ferritin gene and they were subjected to investigate for the expression of transformed gene as well as heavy metal accumulation. Seed from self-fertilized transgenic plants was germinated on media containing toxic level of Cd, Cu, Zn, Fe, Mn and scored for tolerance to this heavy metals. There is difference in growth rate between transgenic and control plants, especially Cd, Cu. And transgenic plants accumulated more heavy metals than control plants.

• Asian Pacific Journal of Cancer Prevention
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• 제15권11호
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• pp.4385-4394
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• 2014

Cancer is the most deadly disease that causes the serious health problems, physical disabilities, mortalities, and morbidities around the world. It is the second leading cause of death all over the world. Although great advancement have been made in the treatment of cancer progression, still significant deficiencies and room for improvement remain. Chemotherapy produced a number of undesired and toxic side effects. Natural therapies, such as the use of plant-derived products in the treatment of cancer, may reduce adverse and toxic side effects. However, many plants exist that have shown very promising anticancer activities in vitro and in vivo but their active anticancer principle have yet to be evaluated. Combined efforts of botanist, pharmacologist and chemists are required to find new lead anticancer constituent to fight disease. This review will help researchers in the finding of new bioactive molecules as it will focus on various plants evaluated for anticancer properties in vitro and in vivo.