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Seed Free Growth of Aligned ZnO Nanowire Arrays on AZO Substrate 被引量:1
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作者 LIU Liqing CAO Guangxia HONG Kunquan 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2018年第6期1372-1375,共4页
In the absence of commonly used seed layer, we can still successfully synthesized aligned ZnO nanowire arrays by the hydrothermal method. By using aluminum-doped zinc oxide(AZO) glass as a substrate, high-density and ... In the absence of commonly used seed layer, we can still successfully synthesized aligned ZnO nanowire arrays by the hydrothermal method. By using aluminum-doped zinc oxide(AZO) glass as a substrate, high-density and vertically aligned ZnO nanowires were synthesized directly on the substrate in the absence of the ZnO seed layer. The current-voltage curve indicated that the sample grown on AZO glass substrate in the absence of seed layer possesses better conductivity than that synthesized on FTO glass substrate with ZnO seed layer. Thus, a simplified, seed-free and low-cost experimental protocol was reported here for large-scale production of high quality ZnO nanowire arrays with promoted conductivity. 展开更多
关键词 ZnO nanowire arrays seed layer free AZO substrate CONDUCTIVITY
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葡萄籽原花青素的分离纯化及其自由基淬灭活性的研究(上) 被引量:4
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作者 马庆一 宋彦显 赵松涛 《现代食品科技》 EI CAS 2007年第4期1-5,共5页
葡萄籽经有机溶剂梯度法及酶法提取,大孔树脂初步纯化,薄层色谱法分离纯化得到原花青素单体和二聚体。结果表明,以60%醇于50℃浸提3次、每次30min(固液比1:7,w/v)效果最好;梯度提取各细分原花青素得率为:(7.73-281.49)mg... 葡萄籽经有机溶剂梯度法及酶法提取,大孔树脂初步纯化,薄层色谱法分离纯化得到原花青素单体和二聚体。结果表明,以60%醇于50℃浸提3次、每次30min(固液比1:7,w/v)效果最好;梯度提取各细分原花青素得率为:(7.73-281.49)mg/100g葡萄籽,其中以乙酸乙酯组分最高,其次为丙酮、乙醇、乙醚。在浓度为0.004g/mL时,淬灭自由基活性最高的是乙醇组分,抑制率为85.13%,其次是乙醚(77.60%)和乙酸乙酯组分(48.64%)。大孔树脂纯化以40%乙醇最佳。以制备薄层法(展开体系:v甲苯:v丙酮:v冰乙酸=2:2:1)分别对乙酸乙酯、乙醚组分进行纯化,前者原花青素单体和二聚体的百分含量分别为33.25%和16.23%,后者为60.64%和10.13%. 展开更多
关键词 葡萄籽 原花青素 梯度提取 酶法提取 分离 纯化 薄层色谱 自由基淬灭活性
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