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Enhanced solubility and permeability of exemestane solid dispersion powders for improved oral delivery
Eedara. Basanth Babu, Kankane. Mradul, Jukanti. Raju, Nagabandi. Vijay Kumar, Bandari. Suresh 한국약제학회 Journal of pharmaceutical investigation 14 Pages
한국약제학회 Journal of pharmaceutical investigation 2013, Vol.43 No.3 229-242 (14 pages)
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Improving the Solubility and Bioavailability of Dihydroartemisinin by Solid Dispersions and Inclusion Complexes
Ansari. Muhammad Tayyab, Batty. Kevin T., Iqbal. Ijaz, Sunderland. Vivian Bruce 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2011, Vol.34 No.5 757-765 (9 pages)
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Solubility Enhancement and Physicochemical Characterization of Carvedilol Solid Dispersion with Gelucire 50/13
Potluri. Raja Hemanth Kumar, Bandari. Suresh, Jukanti. Raju, Veerareddy. Prabhakar Reddy 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 7 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2011, Vol.34 No.1 51-57 (7 pages)
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Preparation and Characterization of Solid Dispersions of Itraconazole by using Aerosol Solvent Extraction System for Improvement in Drug Solubility and Bioavailability
Lee. Si-Beum, Nam. Kyung-Wan, Kim. Min-Soo, Jun. Seoung-Wook, Park. Jeong-Sook, Woo. Jong-Soo, Hwang. Sung-Joo 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2005, Vol.28 No.7 866-874 (9 pages)
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Applications of carbon-based materials in solid phase micro-extraction: a review
Jian Guo, Soo-Jin Park, Long-Yue Meng, Xinghua Jin 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 2 10-17 (8 pages)
of sample preparation technology, solid phase micro-extraction (SPME) has been widely used in analytical chemistry for high extraction efficiency and convenient operation. Different materials lead to different extraction results. Among existing materials, carbon-based materials are still attracting attention from scientists due to their excellent physical and chemical properties as well as their modifiable surfaces, which could enhance the adsorption effects of SPME fiber. This review introduces... -
Solubility and dissolution rate enhancement of lumefantrine using hot melt extrusion technology with physicochemical characterisation
Fule. Ritesh, Meer. Tariq, Sav. Ajay, Amin. Purnima 한국약제학회 Journal of pharmaceutical investigation 17 Pages
한국약제학회 Journal of pharmaceutical investigation 2013, Vol.43 No.4 305-321 (17 pages)
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Preparation and in vivo evaluation of immediate-release pellet containing celecoxib solid dispersion
Park. Chun-Woong, Tung. Nguyen-Thach, Son. Dao-Danh, Kim. Ju-Young, Rhee. Yun-Seok, Kang. Seung-Yeop, Park. Shin-Ae, Hwang. Kyu-Mok, Oh. 한국약제학회 Journal of pharmaceutical investigation 6 Pages
한국약제학회 Journal of pharmaceutical investigation 2012, Vol.42 No.3 121-126 (6 pages)
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Enhanced Dissolution of Coenzyme Q10 using Solid Dispersions Prepared by Low Temperature Melting Method
Kang. Jun-Heok, Yan. Yi-Dong, Kim. Hyun-Chan, Lee. Sung-Neung, Yong. Chul-Soon, Choi. Han-Gon 한국약제학회 Journal of pharmaceutical investigation 7 Pages
한국약제학회 Journal of pharmaceutical investigation 2010, Vol.40 No.5 277-283 (7 pages)
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Solid Dispersion as a Strategy to Improve Drug Bioavailability
박준형, 전명관, 조훈, 최후균, Park. Jun-Hyung, Chun. Myung-Kwan, Cho. Hoon, Choi. Hoo-Kyun 한국생물공학회 KSBB Journal 10 Pages
한국생물공학회 KSBB Journal 2011, Vol.26 No.4 283-292 (10 pages)
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Biopharmaceutical Evaluation of a Solid Dispersion System Containing Sibutramine Freebase
Lee. Min-Suk, Chang. Hee-Chul, Kim. Taewan, Park. Jung-Hwa, Lee. Bong-Sang, Kim. Sung-Hee, Kim. Do-Hwan, Kim. Bo-Gyun, Oh. Seong-Tae, Kan 대한화학회 Bulletin of the Korean Chemical Society 6 Pages
대한화학회 Bulletin of the Korean Chemical Society 2008, Vol.29 No.4 749-754 (6 pages)
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Investigation of polymeric excipients for dutasteride solid dispersion and its physicochemical characterization
Kim. Nam Ah, Choi. Du Hyung, Lim. Jun Yeul, Kim. Ki Hyun, Lim. Dae Gon, Lee. Eunhee, Park. Eun-Seok, Jeong. Seong Hoon 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 11 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2014, Vol.37 No.2 214-224 (11 pages)
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Enhancement of Solubility and Dissolution Rate of Cryptotanshinone, Tanshinone I and Tanshinone IIA Extracted from Salvia miltiorrhiza
Yu. Hang, Subedi. Robhash Kusam, Nepal. Pushp R., Kim. Yoon G., Choi. Hoo-Kyun 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 8 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2012, Vol.35 No.8 1457-1464 (8 pages)
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Preparation and Characterization of Emulsified Solid Dispersions Containing Docetaxel
Chen. Ying, Shi. Qiongzhi, Chen. Zhiyu, Zheng. Jianling, Xu. Hengjun, Li. Jiazhi, Liu. Hong 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2011, Vol.34 No.11 1909-1917 (9 pages)
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Preparation and Physicochemical Characterizations of Tanshinone IIA Solid Dispersion
Zhao. Xia, Liu. Xin, Gan. Lishe, Zhou. Changxin, Mo. Jianxia 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 11 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2011, Vol.34 No.6 949-959 (11 pages)
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Development of Novel Itraconazole-loaded Solid Dispersion without Crystalline Change with Improved Bioavailability
Park. Young-Joon, Xuan. Jing-Ji, Oh. Dong-Hoon, Balakrishnan. Prabagar, Yang. Ho-Joon, Yeo. Woo-Hyun, Lee. Mi-Kyung, Choi. Han-Gon, Yong 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2010, Vol.33 No.8 1217-1225 (9 pages)
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Development of Novel Ibuprofen-loaded Solid Dispersion with Improved Bioavailability using Aqueous Solution
Park. Young-Joon, Kwon. Ram, Quan. Qi Zhe, Oh. Dong-Hoon, Kim. Jong-Oh, Hwang. Ma-Ro, Koo. Yoon-Bon, Woo. Jong-Soo, Yong. Chul-Soon, Choi 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 6 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2009, Vol.32 No.5 767-772 (6 pages)
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Physicochemical Characterization of Tacrolimus-loaded Solid Dispersion with Sodium Carboxylmethyl Cellulose and Sodium Lauryl Sulfate
Park. Young-Joon, Ryu. Dong-Sung, Li. Dong Xun, Quan. Qi Zhe, Oh. Dong-Hoon, Kim. Jong-Oh, Seo. Youn-Gee, Lee. Young-Im, Yong. Chul-Soon 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 6 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2009, Vol.32 No.6 893-898 (6 pages)
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Solid Dispersions of Dihydroartemisinin in Polyvinylpyrrolidone
Ansari. Muhammad Tayyab, Sunderland. Vivian Bruce 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2008, Vol.31 No.3 390-398 (9 pages)
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Enhanced Dissolution of Ibuprofen Using Solid Dispersion with Poloxamer 407
Newa. Madhuri, Bhandari. Krishna Hari, Oh. Dong-Hoon, Kim. Young-Ran, Sung. Joon-Ho, Kim. Jong-Oh, Woo. Jong-Soo, Choi. Han-Gon, Yong. C 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 11 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2008, Vol.31 No.11 1497-1507 (11 pages)
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Use of hydrophilic extra-viral domain of canine distemper virus H protein for enzyme-linked immunosorbent assay development
Ki-hyun Cho, Jeongmi Kim, Hyun-ah Yoo, Dae-hee Kim, Seung-yong Park, Chang-seon Song, In-soo Choi, Joong-bok Lee, 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 6 503-509 (7 pages)
Simple methods for measuring the levels of serum antibody against canine distemper virus (CDV) would assist in the effective vaccination of dogs. To develop an enzyme-linked immunosorbent assay (ELISA) specific for CDV, we expressed hydrophilic extra-viral domain (HEVD) protein of the A75/17-CDV H gene in a pET 28a plasmid-based Escherichia (E.) coli vector system. Expression was confirmed by dot and Western blotting. We proposed that detection of E. coli-expressed H protein might be... -
Bioavailability of the amino acid-attached prodrug as a new anti-HIV agent in rats
Kyung-Ae Chae, Hee-Jung Cho, Ji-Min Sung, Hee Lee, Dong-Cheol Seo, Jin-Suk Kim, Ho-Chul Shin 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 3호 10 263-267 (5 pages)
The primary objective of this study was to compare the pharmacokinetics of a new anti-human immunodeficiency virus agent 1-(2-amino-pyridin-4-ylmethyl)-6-(3,5-dimethylbenzoyl)- 5-isopropyl-1H-pyrimidine-2,4-dione (VP-0502) with its amino acid prodrug alanine amide of VP-0502 (VP-0502AL), following intravenous and oral administrations to rats. The plasma concentrations of both analytes were analyzed via high-performance liquid chromatography coupled with photodiode-array detection (HPLC-DAD).... -
Comparative pharmacokinetics of norfloxacin-glycine acetate after single oral administration and medication with drinking water in broilers
JongHwanLim, ByoungYongLim, ByungKwonPark, MyongSeokKim, BeomSuJang, SeungChunPark, HyoInYun 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 6 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2004, 제 44권 제 2호 7 201-206 (6 pages)
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Effects of Fluvastatin on the Pharmacokinetics of Repaglinide: Possible Role of CYP3A4 and P-glycoprotein Inhibition by Fluvastatin
Chong-KiLee, Jun-ShikChoi, JoonSeokBang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.3 10 245-251 (7 pages)
The purpose of this study was to investigate the effects of fluvastatin on the pharmacokinetics of repaglinide in rats. The effect of fluvastatin on P-glycoprotein and CYP3A4 activity was evaluated. The pharmacokinetic parameters and blood glucose concentrations were also determined after oral and intravenous administration of repaglinide to rats in the presence and absence of fluvastatin. Fluvastatin inhibited CYP3A4 activity in a concentration-dependent manner with a 50% inhibition... -
Impact of Micellar Vehicles on in situ Intestinal Absorption Properties of Beta-Lapachone in Rats
SoungBaekJang, DongjuKim, SeongYeonKim, ChangheePark, JiHoonJeong, Hyo-JeongKuh, JaehwiLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 2 9-13 (5 pages)
The aim of the present study was to examine the effect of micellar systems on the absorption of beta-lapachone (b-lap) through different intestinal segments using a single-pass rat intestinal perfusion technique. B-lap was solubilized in mixed micelles composed of phosphatidylcholine and sodium deoxycholate, and in sodium lauryl sulfate (SLS)-based conventional micelles. Both mixed micelles and SLS micelles improved the in situ permeability of b-lap in all intestinal segments tested although the... -
The Inhibitory Effects of Hydrogen Sulfide on Pacemaker Activity of Interstitial Cells of Cajal from Mouse Small Intestine
ShankarPrasadParajuli, SeokChoi, JunLee, YoungDaeKim, ChanGukPark, ManYooKim, HyunIlKim, CheolHoYeum, JaeYeoulJun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.2 4 83-89 (7 pages)
In this study, we studied whether hydrogen sulfide (H2S) has an effect on the pacemaker activity of interstitial cells of Cajal (ICC), in the small intestine of mice. The actions of H2S on pacemaker activity were investigated using whole-cell patch-clamp technique, intracellular Ca2＋ analysis at 30oC and RT-PCR in cultured mouse intestinal ICC. Exogenously applied sodium hydrogen sulfide (NaHS), a donor of hydrogen sulfide, caused a slight tonic inward current on pacemaker activity in ICC at... -
The Protective Effect of Melatonin Administration against Adriamycin-induced Cardiotoxicity in Rats
JinHan, ChungheeKim, NariKim, JuheePark, YoungchurlYang, EuiyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.4 6 333-342 (10 pages)
of solid human tumors. However, recent studies have recognized severe cardiotoxicity after an acute dose, which are likely the result of generation of free radicals and lipid peroxidation. Therefore, the clinical uses of adriamycin have been limited. Melatonin, the pineal gland hormone known for its ability to modulate circardian rhythm, has recently been studied in its several functions, including cancer growth inhibition, stimulating the immune system, and acting as an antioxidant and radical... -
精神科 入院患者의 自殺에 對한 몇 가지 臨床的 考察
李相換, 趙斗英 대한신경정신의학회 신경정신의학 7 Pages
대한신경정신의학회 신경정신의학 1981, 제 20권 제 1호 4 36-42 (7 pages)
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Effect of Probenecid on Urate Excretion in the Cat Kidney
Jung, Dong-Keun, Kim, Yong-Keun, Jung, Jin-Sup, Lee, Sang-Ho 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1991, 제 25권 제 1호 4 37-48 (12 pages)
The characteristics of probenecid effect on renal urate excretion in the cat were studied by clearance method and compared with those in the rabbit. In the cat GFR was 3.03±0.09 ml/min·kg, and endogenous plasma urate concentration was 1.12±0.57 μg/ml, which is less than that in the rabbit (3.33±0.46 μg/ml). In the rabbit, FEur} was 1.76±0.08 and net urate secretion was observed, while, in the cat FEur was 0.70±0.02 and net reabsorption was observed. In the cat FEur was dependent on urine... -
혈액-뇌장벽 투과성에 대한 히스타민의 영향
김기진(Kim, Kee-Jin), 신동훈(Shin, Dong-Hoon) 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1968, 제 2권 제 2호 4 33-44 (12 pages)
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The Water-Soluble Chitosan Derivative, N-Methylene Phosphonic Chitosan, Is an Effective Fungicide against the Phytopathogen Fusarium eumartii
Florencia Anabel Mesas, Mar?a Cecilia Terrile, Mar?a Ximena Silveyra, Adriana Zu?iga, Mar?a Susana Rodriguez, Claudia Anah? Casalongu?, Julieta Ren?e Mendieta 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 4 533-542 (10 pages)
Chitosan has been considered an environmental-friend- ly polymer. However, its use in agriculture has not been extended yet due to its relatively low solubility in water. N-Methylene phosphonic chitosan (NMPC) is a water- soluble derivative prepared by adding a phosphonic group to chitosan. This study demonstrates that NMPC has a fungicidal effect on the phytopathogenic fungus Fusarium solani f. sp. eumartii (F. eumartii) judged by the inhibition of F. eumartti mycelial growth and spore... -
Preparation of Nanomaterial Wettable Powder Formulations of Antagonistic Bacteria from Phellodendron chinense and the Biological Control of Brown Leaf Spot Disease
Yanling Zeng, Han Liu, Tianhui Zhu, Shan Han, Shujiang Li 한국식물병리학회 The Plant Pathology Journal 17 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 2 215-231 (17 pages)
Brown leaf spot disease caused by Nigrospora guilin- ensis on Phellodendron chinense occurs in a large area in Dayi County, Chengdu City, Sichuan Province, China each year. This outbreak has severely reduced the production of Chinese medicinal plants P. chinense and caused substantial economic losses. The bacterial isolate JKB05 was isolated from the healthy leaves of P. chinense, exhibited antagonistic effects against N. guilinensis and was identified as Bacillus megaterium. The following... -
Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases
Adamu Abdullahi, Khairulmazmi Ahmad, Intan Safinar Ismail, Norhayu Asib, Osumanu Haruna Ahmed, Abubakar Ismaila Abubakar, Yasmeen Siddiqui, Mohd Razi Ismail 한국식물병리학회 The Plant Pathology Journal 21 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 1 515-535 (21 pages)
many phytopathogens. EOs mode of action affects both the pathogen cell’s external envelope and internal structures. The problems associated with solubility and stability of EOs had prompted the use nanotechnology such as nanoemulsions. The use of nanoemulsion to increase efficiency and supply of EOs to control plant diseases control was discussed in this present paper. The findings of this review paper may accelerate the effective use of ginger EOs in controlling tropical plant diseases. -
Biogenic Volatile Compounds for Plant Disease Diagnosis and Health Improvement
Rouhallah Sharifi, Choong-Min Ryu 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 6호 1 459-469 (11 pages)
Plants and microorganisms (microbes) use information from chemicals such as volatile compounds to understand their environments. Proficiency in sensing and responding to these infochemicals increases an organism’s ecological competence and ability to survive in competitive environments, particularly with regard to plant-pathogen interactions. Plants and microbes acquired the ability to sense and respond to biogenic volatiles during their evolutionary history. However, these signals can only be... -
Computer-Aided Drug Discovery in Plant Pathology
한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 6호 1 529-542 (14 pages)
Control of plant diseases is largely dependent on use of agrochemicals. However, there are widening gaps between our knowledge on plant diseases gained from genetic/mechanistic studies and rapid translation of the knowledge into target-oriented development of effective agrochemicals. Here we propose that the time is ripe for computer-aided drug discovery/design (CADD) in molecular plant pathology. CADD has played a pivotal role in development of medically important molecules over the last three... -
Effect of Aerated Compost Tea on the Growth Promotion of Lettuce, Soybean, and Sweet Corn in Organic Cultivation
한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 3호 7 259-268 (10 pages)
This study investigated the chemical characteristics and microbial population during incubation of four kinds of aerated compost teas based on oriental medicinal herbs compost, vermicompost, rice straw compost, and mixtures of three composts (MOVR). It aimed to determine the effects of the aerated compost tea (ACT) based on MOVR on the growth promotion of red leaf lettuce, soybean and sweet corn. Findings showed that the pH level and EC of the compost tea slightly increased based on the... -
Impact of single metal oxide and coal ash on secondary ultrafine particle generation through SO2 and NO2 heterogeneous reaction
Ru-Jiao Song, Zi-Xiang Xu, Joo-Chang Park, Li-Hua Xu, Hyung-Taek Kim 한국열환경공학회 열환경공학 19 Pages
한국열환경공학회 열환경공학 2020, 제 15권 1호 4 28-46 (19 pages)
Particulate matter research is of great significance in solving atmospheric environment problems. The heterogeneous reaction of mixed gas on different mineral oxides and coal ash was studied based on a laboratory-built aerosol generating reactor. The product formed on particles was investigated by ion chromatography (IC). SO2 and NO2 could react on oxides to form secondary particles and the order of reactivity of mineral oxides under laboratory reaction conditions is: Al2O3>MgO>CaO>>SiO2, Fe2O3.... -
Pitch 열개질에 의한 탄소계 전극소재 합성
서정권, 홍지숙, 이정민, 이범재 한국열환경공학회 열환경공학 15 Pages
한국열환경공학회 열환경공학 2006, 제 3권 2호 1 93-108 (15 pages)
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Pitch 열개질에 의한 탄소계 전극소재 합성
서정권, 홍지숙, 이정민, 이범재 한국열환경공학회 열환경공학 15 Pages
한국열환경공학회 열환경공학 2009, 제 6권 1호 5 41-55 (15 pages)
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A modified electrode by a facile green preparation of reduced graphene oxide utilizing olive leaves extract
Abeer Baioun, Hassan Kellawi, Ahamed Falah 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 7 47-54 (8 pages)
Different phytochemicals obtained from various natural plant sources are used as reduction agents for preparing gold, copper, silver and platinum nanoparticles. In this work a green method of reducing graphene oxide (rGO) by an inexpensive, effective and scalable method using olive leaf aqueous extract as the reducing agent, was used to produce rGO. Both GO and rGO were prepared and investigated by ultraviolet and visible spectroscopy, Fourier-transform infrared, scanning electron microscopy,... -
Catalytic hydrogenation-assisted preparation of melt spinnable pitches from petroleum residue for making mesophase pitch based carbon fibers
Dong Hun Lee, Jisu Choi, Young Se Oh, Yoong Ahm Kim, Kap Seung Yang, Ho Jin Ryu, Yong Jung Kim 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 4 28-35 (8 pages)
mesophase pitches via catalytic hydrogenation of petroleum residue (fluidized catalytic cracking-decant oil) and their subsequent thermal soaking. The mesophase pitches thus obtained were analyzed in terms of their viscosity, elemental composition, solubility, molecular weight, softening point and optical texture. We found that zeolite-induced catalytic hydrogenation under high hydrogen pressure contributed to a large variation in the properties of the pitches. As the hydrogen pressure increase... -
Preparation of carbon discs using petroleum-based binder pitch reformed with carbon black
Sangmin Lee, Kyung Hoon Kim, Young-Seak Lee 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2017, Vol.23 13 84-87 (4 pages)
coal tar-based pitches and petroleum-based pitches. The raw materials of the petroleum-based pitch are obtained through petroleum refining processes, such as fluidized catalytic cracking decant oil, vacuum residue and pyrolyzed fuel oil (PFO). These residue oils are reformed to petroleum-based pitches that are solid at room temperature and for which the molecular weight is controlled through cyclization, aromatization and polymerization conducted using high-temperature heat treatment [9-13]. -
Dispersions of partially reduced graphene oxide in various organic solvents and polymers
Hye Min Kim, Seo Gyun Kim, Heon Sang Lee 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.23 8 55-62 (8 pages)
We report on the dispersion state of partially reduced graphene oxide (PRGO) in organic solvents, namely methyl ethyl ketone, ethyl acetate, methylene chloride, toluene, and xylene, by controlling the carbon to oxygen (C/O) atomic ratio of the PRGOs. A two-phase solvent exchange method is also proposed to transfer PRGO from water to an aprotic solvent, such as methyl ethyl ketone. We achieve relatively good dispersion in aprotic and non-polar solvents by controlling the C/O atomic ratio of the... -
Kinetic and multi-parameter isotherm studies of picric acid removal from aqueous solutions by carboxylated multi-walled carbon nanotubes in the presence and absence of ultrasound
Soheila Gholitabar, Hasan Tahermansouri 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 2 14-24 (11 pages)
Carboxylated multi-wall carbon nanotubes (MWCNTs-COOH) have been used as efficient adsorbents for the removal of picric acid from aqueous solutions under stirring and ultrasound conditions. Batch experiments were conducted to study the influence of the different parameters such as pH, amount of adsorbents, contact time and concentration of picric acid on the adsorption process. The kinetic data were fitted with pseudo-first order, pseudo-secondorder, Elovich and intra-particle diffusion models.... -
Three-dimensional porous graphene materials for environmental applications
Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh 한국탄소학회 Carbon Letters 13 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 1 1-13 (13 pages)
Porous materials play a vital role in science and technology. The ability to control their pore structures at the atomic, molecular, and nanometer scales enable interactions with atoms, ions and molecules to occur throughout the bulk of the material, for practical applications. Three-dimensional (3D) porous carbon-based materials (e.g., graphene aerogels/hydrogels, sponges and foams) made of graphene or graphene oxide-based networks have attracted considerable attention because they offer low... -
Biocomposite membranes based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and multiwall carbon nanotubes for gas separation
Mongyoung Huh, Hye Min Lee, Young Soo Park, Seok Il Yun 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 17 116-121 (6 pages)
The development of gas separation membranes is currently an active research area because of the rapidly increasing interest in carbon dioxide capture and hydrogen recovery, which are two of the most important solutions for problems related to energy and the environment [1-4]. Polymer membranes show selectivity in the separation of gases due to differences in the permeability of individual gases through the polymer film [3,4]. Even though advantageous in terms of low cost, the segmental... -
Study of complex electrodeposited thin film with multi-layer graphene-coated metal nanoparticles
Young-Lae Cho, Jung-woo Lee, Chan Park, Young-il Song, Su-Jeong Suh 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 8 68-73 (6 pages)
We have demonstrated the production of thin films containing multilayer graphene-coated copper nanoparticles (MGCNs) by a commercial electrodeposition method. The MGCNs were produced by electrical wire explosion, an easily applied technique for creating hybrid metal nanoparticles. The nanoparticles had average diameters of 10?120 nm and quasispherical morphologies. We made a complex-electrodeposited copper thin film (CETF) with a thickness of 4.8 μm by adding 300 ppm MGCNs to the electrolyte...
