• Title/Summary/Keyword: Research school

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Comparative Proteomic Analysis of Blue Light Signaling Components in the Arabidopsis Cryptochrome 1 Mutant

  • Phee, Bong-Kwan;Park, Sebyul;Cho, Jin-Hwan;Jeon, Jong-Seong;Bhoo, Seong Hee;Hahn, Tae-Ryong
    • Molecules and Cells
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    • v.23 no.2
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    • pp.154-160
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    • 2007

  • An Arabidopsis hy4 mutant that is specifically impaired in its ability to undergo blue light dependent photomorphogenesis was used to identify cryptochrome 1 signaling-related components. Proteomic analysis revealed about 205 differentially expressed protein spots in the blue light-irradiated hy4 mutant compared to the wild-type. The proteins corresponding to 28 up-regulated and 33 down-regulated spots were identified. Obvious morphological changes in the hy4 mutant were closely related to the expression of various transcription factors. Our findings suggest that blue light signals may be involved in many cellular processes including disease resistance and stress responses.

  • KSCI

Efficient Synthesis and in vitro PDT Effect of Purpurin-18-N-Aminoimides

  • Cui, Bing Cun;Cha, Min-Uk;Li, Jia Zhu;Park, Ho-Sung;Yoon, Il;Shim, Young-Key
    • Bulletin of the Korean Chemical Society
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    • v.31 no.11
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    • pp.3313-3317
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    • 2010

  • A simple and efficient synthetic route for making purpurin-18-N-aminoimides is described. The purpurin-18-Naminoimides are obtained by treatment of purpurin-18 methyl ester with various amines. These new compounds have long wavelength absorptions in the range of 706 - 711 nm. In preliminary screening, the purpurin-18-N-aminoimides have shown promising photosensitizing activity for the cancer cell by in vitro study in photodynamic therapy.

  • https://doi.org/10.5012/bkcs.2010.31.11.3313 인용 PDF KSCI

Investigation of Frequency Dependent Sensitivity of Noise Figure on Device Parameters in 65 nm CMOS

  • Koo, Min-Suk;Jung, Hak-Chul;Jhon, Hee-Sauk;Park, Byung-Gook;Lee, Jong-Duk;Shin, Hyung-Cheol
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.9 no.1
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    • pp.61-66
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    • 2009

  • We have investigated the noise sensitivity of low noise amplifier (LNA) at different frequency. This noise sensitivity analysis provides insights about noise parameters and it is very beneficial for making appropriate design trade-offs. From this work, the circuit designer can choose the adequate noise parameters tolerances.

  • https://doi.org/10.5573/JSTS.2009.9.1.061 인용 PDF KSCI

Extraction of Ballistic Parameters in 65 nm MOSFETs

  • Kim, Jun-Soo;Lee, Jae-Hong;Kwon, Yong-Min;Park, Byung-Gook;Lee, Jong-Duk;Shin, Hyung-Cheol
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.9 no.1
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    • pp.55-60
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    • 2009

  • The channel backscattering coefficient and injection velocity have been extracted experimentally in 65nm MOSFETs. Thanks to an experimental extraction methodology taking into account multi-subband population, we demonstrate that the short channel ballistic efficiency is slightly greater than long channel ballistic efficiency.

  • https://doi.org/10.5573/JSTS.2009.9.1.055 인용 PDF KSCI