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空肠弯曲菌(Campylobacter jejuni)是一种革兰氏阴性的,嗜热的,微需氧菌~([33]),它有16种和8亚种,所有的这些菌均寄生在家禽与热血家畜肠道内,在微需氧与高体温的理想环境下可以持续生长.被这些菌污染的食物和水会引起人的肠道疾病.在许多工业国家,空肠弯曲菌是引起人类肠道疾病菌中最普通的一种~([1]).目前,检测空肠弯曲菌的最新方法有:与酶电极结合的酶联免疫分析法~([2])和电化学生物传感器~([3])等.本实验中,首次用改性过的羧甲基壳聚糖包裹的Fe_3O_4纳米粒子修饰电极固定2D12单克隆抗体,并采用电化学阻抗谱学技术对空肠弯曲菌进行检测,同时对实际样品进行了分析,获得满意结果. 相似文献
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SDS胶束体系中亚甲蓝与血清白蛋白的相互作用 总被引:3,自引:0,他引:3
The interaction of methylene blue(MB) and bovine serum albumin(BSA) is investigated in the SDS micelle system which is simulated as one kind of coexisted albumin. The interaction parameters of MB and BSA and simulated albumin such as partition coefficient 辍ormal binding free energy 腉、average binding number n are calculated. The results show that most of MB is in the form of monomer in SDS micelle systems;the main interaction of MB and BSA is of static electric and H bind force,and that of MB and simulated albumin is only of static electric force. 相似文献
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