• Title/Summary/Keyword: Electrophoretic Pattern

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A STUDY ON ELECTROPHORETIC DIFFERENTIATION OF RADICUAR CYSTS AND GRANULOMAS (전기영동분석법(電氣泳動分析法)에 의(依)한 치근단낭종((齒根端囊腫)과 치근단육아종(齒根端肉牙腫)의 감별(鑑別)에 관(關)한 연구(硏究))

  • Bae, Kwang-Shik
    • Restorative Dentistry and Endodontics
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    • v.2 no.1
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    • pp.20-26
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    • 1976
  • Cellulose acetate electrophoresis was used for differential diagnosis of radicular cysts and granulomas. Sixteen periapical lesions were excised from sixteen teeth with radiographic evidence of periapical pathosis, and two normal periodontal tissues were surgically removed from two wisdom teeth. The tissue samples were separated into two parts. Half was prepared for cellulose acetate electrophoresis, and the electrophoretic patterns were scanned with Helena densitometer. The other half was examined histologically, and the histologic diagnoses were then compared with the electrophoretic patterns and with the x-ray findings. The results were the following: 1. The histopathologic results showed the presence of 13 granulomas (81.8%) and 3 cysts (18.3%). 2. An albumin pattern, alpha-globulin pattern, beta-globulin pattern, fibrinogen pattern and gamma-globulin pattern were found in all eighteen cases. 3. All eighteen cases were divided into normal periodontal tissue group, dental granuloma group, and radicular cyst group by the histopathologic diagnosis. The electrophoretic pattern of dental granuloma group and that of normal periodontal tissue group resembled each other. The two groups showed the highest percentage in beta-globulin fraction, and the beta-globulin of dental granuloma group(47.17%) was higher than that of normal periodontal tissue group (40.54%) by 6.63%. On the contrary, beta-globulin fraction of radicular cyst group (28.00%) was much lower than those of the granuloma group (47.17%) and normal periodontal tissue group (40.54%), and alpha-globulin of radicular cyst group (34.16%) was much higher than those of the granuloma group (20.04%) and normal group (19.58%). 4. Five cases (31.3%) of the sixteen periodontal lesions showed different results between histopathologic diagnoses and radiographic findings.

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Screening of spherical phosphors by electrophoretic deposition for full-color field emission display application

  • Kwon, Seung-Ho;Cho, sung-Hee;Yoo, Jae-Soo;Lee, Jong-Duk
    • Journal of Korean Vacuum Science & Technology
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    • v.3 no.1
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    • pp.79-84
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    • 1999
  • the photolithographic patterning on an indium-tin oxide (ITO) glass and the electro-phoretic deposition were combined for preparing the screen of the full-color field emission display(FED). the patterns with a pixel of 400$\mu\textrm{m}$ on the ITO-glass were made by etching the ITO with well-prepared etchant consisting of HCL, H2O, and HNO3. Electrophoretic method was carried out in order to deposit each spherical red (R), green(G), and blue (B) phosphor on the patterned ITO-glass. The process parameters such as bias voltage, salt concentration, and deposition time were optimized to achieve clear boundaries. It was found that the etching process of ITO combined with electrophoretic method was cost-effective, provided distinct pattern, and even reduced process steps compared with conventional processes. The application of reverse bias to the dormant electrodes while depositing the phosphors on the stripe pattern was found to be very critical for preventing the cross-contamination of each phosphor in a pixel.

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Ultrastructural Changes of Oocyte in Korean Catfish, Silurus asotus (발달 단계에 따른 한국산 메기(Silurus asotus) 난모세포의 미세구조적 변화)

  • 윤종만;김계웅;신호철;장계남;류동석;박홍양
    • Korean Journal of Animal Reproduction
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    • v.19 no.2
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    • pp.105-117
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    • 1995
  • This study was carried out to investigate the histomorphological changes and the electrophoretic patterns of egg components, obtained from 100 of 1-year-old female catfish(Silurus asotus). Especially, the light microscopic and ultrastructural changes of ooplasm and follicular membranes of oocytes, were observed by light and transmission electron microscope. All data were collected from October in 1992 to May in 1993. The size of the nucleoli and number of the yolk granules increased as the oocyte grew. Yolk granules were deposited in the oocyte as fluid. Due to the presence of large early and late maturing oocytes, their ovaries were large, transparent, granular, and greenish in color. As the percentages of fish in LMO and RO stage increased from March to April, mean of GSI values(19.95%) increased. Follicle cells such as granulosa cell and thecal cell change a squamous into cuboid shape in LPO and EMO stage. Processes, microvilli, from the granulosa cells and from the oocyte grow and make contact with each other in the pore canals of the zona radiata during vitellogenesis, but are withdrawn as the zona radiate becomes more compact and devoid of pore canals during oocyte maturation. The electrophoretic pattern of major band in mature stage was much thicker(21k, 24k, 32k, 45k, 67∼110k, 170k dalton) than that in previtellogenic phase.

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Separation of Barley Seed Proteins by Disc Electrophoresis (Disc electrophoresis에 의한 대맥종자단백질의 분리)

  • 최종열
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.10
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    • pp.91-97
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    • 1971
  • Fifteen samples of barley seed proteins representing winter 6-rowed, spring 6-rowed and spring 2-rowed group were separated by disc electrophoresis. Photographic, densitometric and diagrammatic representation were presented to make comparison possible. Eighteen to twenty one bands were detected in each gel. Electrophoretic spectrum of each variety was highly variety specific showing that the spectrum is the reflection of hereditary constituents of a organism. Related variety showed identical or nearly identical pectrum. All winter 6-rowed barley showed very faint B2 band, while spring 6-rowed and spring 2-rowed barley showed dense or less dense B2 band. All spring barley showed B3 band, while all winter barley showed B4 band.

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Comparison of Electrophoretic Isozyme Band Pattern of Pleurotus spp. in Korea -I. Homogeneous Gel- (한국산 느타리버섯(Pleurotus spp.)의 전기영동 Isozyme Band Pattern 비교 -I. Homogeneous Gel-)

  • Park, Yong-Hwan;Byun, Myung-Ok;Hiroshi, Fujii
    • The Korean Journal of Mycology
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    • v.16 no.2
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    • pp.87-94
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    • 1988
  • Electrophoretic isozyme patterns from mycelia, primordia, cap and stem of Pleurotus spp. collected in Korea were compared. Primordia, cap and stem of fruitbody showed very similar isozyme patterns but mycelial isozyme patterns were different from those of fruitbody. Isozyme patterns of malate dehydrogenase, acid phosphatase in Pleurotus ostreatus collected from different regions in Korea were similar but those of esterase, peroxidase, leucine amino peptidase and superoxide dismutase were different. Interspecific comparison of esterase isozyme patterns among Pleurotus ostreatus P. cornucopiae and, P. florida was very different and may be valuable subsidiary tool to conventional taxonomic techniques for identifying species of Pleurotus. A dendrogram by similarities of isozyme band pattern was presented.

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Application of Electrophoretic Methods for differentiation of Trichoderma species (전기영동법을 이용한 Trichoderma spp 분류가능성에 관한 연구)

  • Park W.M.;Park Y.H.;Lee E.Y.
    • Korean journal of applied entomology
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    • v.23 no.2 s.59
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    • pp.102-108
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    • 1984
  • These researches were carried out to investigate the morphology of different species of Trichoderma and the possibilities of differentiation of the species of Trichoderma by electrophoretic methods. Variations between the isolates of a species of Trichoderma indicate the genetical differences, also isozyme and protein patterns will be useful to investigate genetical variations betweens the isolates. It might be possible that distinct bands of isozymes of esterase, phosphotase, catalase, catalase differentiate species of Trichoderma.

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Electrophoretic Deposition for the Growth of Carbon nanofibers on Ni-Cu/C-fiber Textiles

  • Nam, Ki-Mok;Mees, Karina;Park, Ho-Seon;Willert-Porada, Monika;Lee, Chang-Seop
    • Bulletin of the Korean Chemical Society
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    • v.35 no.8
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    • pp.2431-2437
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    • 2014
  • In this study, Ni, Ni-Cu and Ni/Cu catalysts were deposited onto C-fiber textiles via the electrophoretic deposition method, and the growth characteristics of carbon nanofibers on the deposited catalyst/C-fiber textiles were investigated. The catalyst deposition onto C-fiber textiles was accomplished by immersing the C-fiber textiles into Ni or Ni-Cu mixed solutions, producing the substrate by post-deposition of Ni onto C-fiber textiles with pre-deposited Cu, and passing it through a gas mixture of $N_2$, $H_2$ and $C_2H_4$ at $700^{\circ}C$ to synthesize carbon nanofibers. For analysis of the characteristics of the synthesized carbon nanofibers and the deposition pattern of catalysts, SEM, EDS, BET, XRD, Raman and XPS analysis were conducted. It was found that the amount of catalyst deposited and the ratio of Ni deposition in the Ni-Cu mixed solution increased with an increasing voltage for electrophoretic deposition. In the case of post-deposition of Ni catalyst onto substrates with pre-deposited Cu, both bimetallic catalyst and carbon nanofibers with a high level of crystallizability were produced. Carbon nanofibers yielded with the catalyst prepared in Ni and Ni-Cu mixed solutions showed a Y-shaped morphology.

Electrophoretic Patterns of Myofibrillar Proteins by Sugar Addition and Heat Treatment (당첨가 및 가열처리에 의한 근원섬유 단백질의 전기영동 Pattern 변화)

  • Yang, Jong-Beom;Yoon, Won-Ho;Ko, Myung-Soo;Kim, Chang-Han
    • Korean Journal of Food Science and Technology
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    • v.22 no.6
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    • pp.640-645
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    • 1990
  • Changes of the electrophoretic patterns of myofibrillar proteins by sugar audition and heat treatment was studied. In the electrophoretic patterns of myofibrills prepared from no sugar added meat, as the intensity of higher molecular weight band such as myosin heavy chain showed a remarkable decrease by heating, that of lower molecular weight band such as actin showed no change. That from sugar added meat showed more remarkable decrease in the intensity of higher molecular weight band than that from no sugar added meat and this tendency was most noticeable in case of glucose addition. The effect of digestion with proteases after sugar addition and heat treatment on the electrophoretic patterns exhibited the descending order of trypsin >chymotrypsin >peptidase. By digestion with these three enzymes at one time myosin produced 27.000 dalton and 32.000 dalton components, and actin showed 16,000 dalton component. in the case of heat treatment, a part of actin was not digested. And in the case of glucose addition the myosin aggregates was not digested with these three enzymes at a time.

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Studies on the Trypsin Inhibitor in Raw Beans of Korea (한국산 두류의 Trypsin Inhibitor에 관한 생화학적 연구)

  • 박성배
    • YAKHAK HOEJI
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    • v.22 no.2
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    • pp.72-82
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    • 1978
  • This study was undertaken establish the relationship between trypsin inhibitor in raw soybean and antinutritional effect of raw legumes. 1) Among legumes produced in Korea, Glycine max contains a relatively high amount of protein(higher than 40%) compared with kindey bean, sword bean and mung bean and, furthermore, soybean which contains a high amount of protein possesses high trypsin inhibitory activity. 2) Disc electrophoretic pattern exhibited pattern exhibited that the crude protein preparation from Glycine max produced about 9-12 protein bands, and the pattern of electrophoretic mobility was very similar to each other. However, only a few protein bands were observed from the crude protein preparation of yard long bean, sword bean, adzuki bean, mung bean and rice adzuki. From the eluate of the sliced gel, it was confirmed that among those bands, only the fastest moving band contains trypsin inhibitory activity. 3) In chicks fed the normal diet the body weight was increased steady from one week and reached to 40% increase for three weeks but in chick fed raw bean diet, there was no body weight gain until two weeks feeding and only 10-20% of body weight gain was observed at the end of three week feeding. On the other hand, in chicks fed raw bean diet the weight of pancreatic tissue per 100g body weight was increased to about two-fold for two or three weeks but there was no change in liver weight. 4) In the case of amylase secretion from the pancreatic fragment, very strong stimulation on amylase secretion from pancreatic tissue of chicks fed a normal diet was produced by one unit of cholecystokin-pancreozymin. However, no stimulation was observed from pancreatic fragment of chick fed raw bean diet.

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Studies on electrophoretic pattern and amino acids of wild soybean protein[1] -Acrylamide gel electrophoretic pattern of seed protein- (야생대두단백질(野生大豆蛋白質)의 전기영동유형(電氣泳動類型)및 아미노산조성(酸組成)에 관(關)한 연구(硏究)[1] -종실단백질(種實蛋白質)의 Acrylamide gel 전기(電氣) 영동유형(泳動類型)-)

  • Park, H.;Lee, J.S.;Lee, C.Y.
    • Applied Biological Chemistry
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    • v.20 no.2
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    • pp.247-254
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    • 1977
  • Acrylamide gel electrophoretic pattern of 13 wild soybean (Glycine ussuriensis) was compared with that of G. gracilis and G. max var. Gwanggyo. Average Protein content (50%) of wild soybean was greater than that of C. gracilis (46%) and Gwanggyo (45%). Grain weight of wild soybean was one third of G. gracilis and one ninth of Gwanggyo. Electrophoresis of wild soybean protein showed total 16 different bands and three of which (Rm 0.09, 0.59 and 0.84) were specific and did not appeared in 86 var. of G. max which showed four specific bands (Rm 0.35, 0.45, 0.50 and 0.77) of total 17 bands. G. glacilis had all bands of Gwanggyo and two bands (Rm 0.53 and 0.59), one of which (Rm 0.59) was specific for wild soybean indicating that G. gracilis is middle type. Of 16 protein bands the third band (32%), the first band (28%) and the 5th band (13%) were main bands. Electrophoretic pattern could be sorted qualitatively into 4 groups, semiquantitatively into 6 groups and 2 or 4 groups depending on reference pattern by correlation or pattern similarity method. All sorting methods separated a wild soybean from Sogri mountain into a group and except that there were no similarity among methods but correlation methods seems more reasonable. Protein content was no relation with electrophoretic pattern but positively correlated with percent contribution of first band at 5% level suggesting that the first band may have a important role for protein synthesis.

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