项目名称: 苯醚甲环唑半抗原分子设计及其信号增强的免疫传感器研究
项目编号: No.31301462
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 农业科学
项目作者: 刘冰
作者单位: 天津科技大学
项目金额: 21万元
中文摘要: 半抗原的分子设计与合成是建立小分子免疫化学分析方法的关键步骤。课题选择苯醚甲环唑作为研究对象,基于半抗原决定机理和分子模型理论,借助计算机辅助分子模拟技术,设计免疫半抗原和竞争半抗原。探索了影响抗原免疫活性的一些基本参数,初步建立了半抗原合理设计模型,为研究小分子抗原抗体反应机理打下一定的基础。 利用树状分子固定抗体,克服其电极固定化难、导电性差等问题,提高电极表面抗体的固定化效率,构建基于树状分子信号增强的免疫传感器。基于树状分子的抗原抗体捕获策略,探索免疫传感器的固定化方式,提高检测灵敏度,为小分子免疫传感器研究提供一种思路。
中文关键词: 苯醚甲环唑;免疫分析方法;信号增强;免疫传感器;
英文摘要: Molecular designing and synthesis of the hapten is the key Step for development immunoassay of small molecule. Difenoconazole is chosen as a target molecular. Immune hapten and competitive hapten are designed by means of computer-aided molecular modeling, based on the theory of the hapten decision mechanism and molecular modeling. Some basic parameters that affect the activity of the antigen are studied and modeling of rational design for hapten is initially established. It is a foundation for reaction mechanism of antigen-antibody for the study of small molecule. Using the dendrimer fabricated antibody, some questions on difficult immobilization and poor conductivity of the dendrimer are overcome, and it improves antibody immobilization efficiency on the electrode surface. Immunosensor based on signal enhancement using dendrimer is developed. Dendrimer-based antigen-antibody capture strategies, exploring immunosensor immobilized ways to improve the detection sensitivity, it provides a research idea immunosensor of small molecule.
英文关键词: difenoconazole;immunoassay;signal enhancement;immunosensor;