Abstract
In this report, nanoprobes which could detect the femtogram level of arsenite ions in subcellular organelle of live cells are disclosed. The nanoprobes are composed of ssDNA and single-wall carbon nanotubes (SWCNTs), and the ssDNA is marked by a dye molecule. In a live cell, trace arsenite ions could interact with nanoprobes and significantly decrease the emission of the nanoprobes. With the help of a confocal microscope and cryo-electron microscopy, the lysosome target of the arsenite ion and nanoprobe is well described in high spatial resolution.
Original language | English (US) |
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Pages (from-to) | 5560-5565 |
Number of pages | 6 |
Journal | ACS Nano |
Volume | 5 |
Issue number | 7 |
DOIs | |
State | Published - Jul 26 2011 |
Keywords
- arsenite ion
- femtogram
- live cell
- nanoprobe
- ssDNA
- SWCNTs
ASJC Scopus subject areas
- Engineering(all)
- Materials Science(all)
- Physics and Astronomy(all)