{"title":"应用纳米金/TiO 2 中空微球复合膜高灵敏检测转基因植物外源基因特定DNA序列","authors":"焦奎 张永春杨涛周娜张伟, Zhang Kui","doi":"10.1360/ZB2008-38-10-922","DOIUrl":null,"url":null,"abstract":"在碳糊电极表面制备的纳米金/TiO 2 中空微球复合膜可以极大地提高DNA检测的灵敏度. 应用循环伏安法和电化学交流阻抗谱法研究了纳米金和TiO2中空微球在碳糊电极上的固载, 并用[Fe(CN) 6 ] 3-/4- 作为指示剂以电化学交流阻抗谱法表征了DNA的杂交. 此DNA电化学生物传感器成功检测了来自于花椰菜花叶病毒的35S启动子基因的DNA特定序列, 其动力学检测范围为1.0×10 -12 ~ 1.0×10 -8 mol/L, 检测限为2.3×10 -13 mol/L; 同时对从一种转基因大豆中提取的外源基因胭脂碱合成酶基因终止子的聚合酶链式反应(PCR)扩增产物进行了检测, 得到了满意的结果.","PeriodicalId":49128,"journal":{"name":"Science in China. Series B, Chemistry","volume":"47 1","pages":"922-928"},"PeriodicalIF":0.0000,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"应用纳米金/TiO 2 中空微球复合膜高灵敏检测转基因植物外源基因特定DNA序列\",\"authors\":\"焦奎 张永春杨涛周娜张伟, Zhang Kui\",\"doi\":\"10.1360/ZB2008-38-10-922\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"在碳糊电极表面制备的纳米金/TiO 2 中空微球复合膜可以极大地提高DNA检测的灵敏度. 应用循环伏安法和电化学交流阻抗谱法研究了纳米金和TiO2中空微球在碳糊电极上的固载, 并用[Fe(CN) 6 ] 3-/4- 作为指示剂以电化学交流阻抗谱法表征了DNA的杂交. 此DNA电化学生物传感器成功检测了来自于花椰菜花叶病毒的35S启动子基因的DNA特定序列, 其动力学检测范围为1.0×10 -12 ~ 1.0×10 -8 mol/L, 检测限为2.3×10 -13 mol/L; 同时对从一种转基因大豆中提取的外源基因胭脂碱合成酶基因终止子的聚合酶链式反应(PCR)扩增产物进行了检测, 得到了满意的结果.\",\"PeriodicalId\":49128,\"journal\":{\"name\":\"Science in China. Series B, Chemistry\",\"volume\":\"47 1\",\"pages\":\"922-928\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-10-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science in China. Series B, Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1360/ZB2008-38-10-922\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science in China. Series B, Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1360/ZB2008-38-10-922","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0