• 제목/요약/키워드: Lee Sung-min

검색결과 9,355건 처리시간 0.064초

In vitro release test models for water-insoluble drugs loaded in colloidal carriers

  • Lee, Jung-Min;Choi, Sung-Up;Lee, Byoung-Moo;Lee, Sung-Jae;Choi, Young-Wook
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.295.1-295.1
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    • 2003
  • A suitable model for the estimation of the drug release from nanoparticles has been varied and problematic, especially for the release from lipid nanoparticles containing water-insoluble drugs, due to the difficult particle collection from the release medium. Dialysis membrane has been widely used for the release test from colloidal carrier systems. The amount of drug from the carriers in normal dialysis diffusion technique was very low typically. (omitted)

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Lipid nanodispersion for parenteral drug delivery: in vitro characterization

  • Lee, Jung-Min;Choi, Sung-Up;Lee, Byoung-Moo;Lee, Sung-Jae;Choi, Young-Wook
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.295.2-295.2
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    • 2003
  • Lipid nanodispersion (LN) composed of biocompatible lipids and surfactants is an alternative parenteral drug delivery system especially for lipophilic drugs. It has been studied for versatile applications such as oral, parenteral, topical, ocular, vaccine, and peptide drug delivery. The purpose of this study was to produce a novel LN system for intravenous injection using the high pressure homogenization. (omitted)

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증착시간에 따른 (Ba, Sr)$TiO_3$ 박막의 유전특성 (Dielectric Properties of the (Ba, Sr)$TiO_3$ Thin Films with deposition time)

  • 이상철;임성수;이성갑;정장호;이영희
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 추계학술대회 논문집 학회본부 C
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    • pp.845-847
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    • 1999
  • (Ba, Sr)$TiO_3$[BST] thin films were fabricated on Pt/$TiO_2/SiO_2$/Si substrate by RF sputtering. The structural and dielectric properties of the BST thin films were investigated with the deposition time. Increasing the deposition time from 20 min. to 60 min., second phases were decreased, and EST (111), (100), (200) peaks were increased. The relative dielectric constant and dielectric loss of the EST thin films with the thickness of 3000$\AA$ were 300 and 0.018, respectively at 1[kHz]. The relative dielectric constants was decreased and dielectric losses was increased as increasing the frequency.

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