摘要
基于磁珠带标记DNA电化学传感器、磁珠标记的GMR(TMR)DNA生物传感器和纳米线场效应DNA生物传感器都具有高检测灵敏度的特点,是极具发展前途的研究方向。主要介绍了以上三种高检测灵敏度DNA生物传感器的基本检测原理,并对比分析了这三种传感器的优缺点。
Recently years some new schemes about DNA biosensor were presented. Among them, bead-based and labeled electrochemical DNA biosensor, bead-labeled GMR （TMR） DNA biosensor and nanowire field-effect DNA biosensor were of higher sensitivity. The principles of the three kinds of novel DNA biosensors were introduced, and their features and challenges were reviewed.
出处
《微纳电子技术》
2007年第1期34-38,42,共6页
Micronanoelectronic Technology
基金
上海交通大学青年教师校内科研启动基金
上海市科委重大项目资助(03DZ14025)
关键词
DNA生物传感器
磁珠
巨磁效应
隧道磁电阻效应
纳米线
DNA biosensor
magnetic beads
giant magneto-resistance effect
tunnel magneto-resistance effect
nanowires
