Use of magnetic nanoparticles as nanosensors to probe for molecular interactions

Use of magnetic nanoparticles as nanosensors to probe for molecular interactions
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DOI:
10.1002/cbic.200300730
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发表时间:
2004-03-05
期刊:
影响因子:
3.2
通讯作者:
Weissleder, R
Weissleder, R
中科院分区:
生物学3区
文献类型:
--
作者:
Perez, JM;Josephson, L;Weissleder, R

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生物相容性磁性纳米传感器已被设计用于检测生物介质中的分子相互作用。在目标结合时,这些纳米传感器引起相邻水分子的自旋-自旋弛豫时间的变化,这可以通过磁共振(NMR/MRI)技术检测到。这些磁性纳米传感器被设计用于检测特定的mRNA、蛋白质、酶活性和病原体(例如,病毒),灵敏度在低飞摩尔范围(0.5 - 30 fmol)。
Biocompatible magnetic nanosensors have been designed to detect molecular interactions in biological media. Upon target binding, these nanosensors cause changes in the spin-spin relaxation times of neighboring water molecules, which con be detected by magnetic resonance (NMR/MRI) techniques. These magnetic nanosensors have been designed to detect specific mRNA, proteins, enzymatic activity, and pathogens (e.g., virus) with sensitivity in the low femtomole range (0.5 - 30 fmol).