| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 743835 | Sensors and Actuators B: Chemical | 2012 | 5 Pages |
Abstract
A MRI nanosensor for Hg (II) was developed based on superparamagnetic iron oxide nanoparticles (SPIO NPs). The detection mechanism is attributed to Hg (II)-induced nanoassembly of thymidine-functionalized SPIO NPs from a dispersed to an aggregated state with a corresponding decrease in the transverse relaxation time (T2) of adjacent water protons. Furthermore, an enhancement of transverse relaxation rates (1/T2) showed the high selectivity for Hg (II) compared with other transition and main group metal ions.
Related Topics
Physical Sciences and Engineering
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Authors
Hong Yang, Zhiqing Tian, Juanjuan Wang, Shiping Yang,