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Bendo, A.*; 前田 朋克*; 松田 健二*; Lervik, A.*; Holmestad, R.*; Marioara, C. D.*; 西村 克彦*; 布村 紀男*; 戸田 裕之*; 山口 正剛; et al.
Philosophical Magazine, 99(21), p.2619 - 2635, 2019/07
被引用回数:26 パーセンタイル:82.72(Materials Science, Multidisciplinary)High angle annular dark field scanning transmission electron microscopy has been employed to observe precipitate structures in Al-Zn-Mg and Mg-Zn alloys. precipitate structures in Al-Zn-Mg are commonly formed by MgZn Penrose bricks, but also frequently observed to incorporate MgZn elongated hexagons via two different modes. Tilings of MgZn and MgZn building blocks in both in Mg-Zn and in Al-Zn-Mg alloys, create overall patterns which deviate from the chemical and structural configuration of solely monoclinic MgZn or MgZn unit cells. Precipitate morphologies were found to be correlated to their internal sub-unit cell arrangements, especially to MgZn elongated hexagons.
仁宮 一章*; 野村 知世*; 佐藤 勝也; 鳴海 一成; 清水 宣明*
JAEA-Review 2012-046, JAEA Takasaki Annual Report 2011, P. 108, 2013/01
By using immunocytochemistry and fluorescence-activated cell sorter (FACS), yeast population highly expressing cellulase on the cell surface was enriched from the mutant population prepared by irradiation with carbon ion beams (220 MeV C, 100 Gy). Enzymatic activity of the enriched clones was quantified in vitro by a conventional biochemical method. Repeated FACS after irradiation with carbon ion beams was effective for selecting yeast population of interest.
仁宮 一章*; 野村 知世*; 清水 宣明*; 佐藤 勝也; 鳴海 一成
no journal, ,
セルラーゼ高発現酵母を育種するために、イオンビームによって突然変異を導入した酵母の細胞表層に発現したセルラーゼの酵素量を蛍光免疫染色で蛍光強度に置き換えることにより、fluorescence-activated cell sorter (FACS)を用いて、セルラーゼ高発現株を蛍光強度の高い細胞集団としてhigh-throughputに分取することを試みてきた。今回、濃縮を繰り返した後、クローンの単離及び得られた酵母クローンについての酵素活性を測定した。その結果、親株のMT8-1III株(WT)のセルラーゼ活性が3.510 U/OD unitであったのに対し、最も活性が高かったクローンは9.110 U/OD unitと約2.6倍の活性であった。