Abstract
Lanthanide-ion doped oxide nanoparticles were functionalized for use as fluorescent biological labels. These nanoparticles are synthesized directly in water which facilitates their functionalization, and are very photostable without emission intermittency. Nanoparticles functionalized with guanidinium groups act as artificial toxins and specifically target sodium channels. They are individually detectable in cardiac myocytes, revealing a heterogeneous distribution of sodium channels. Functionalized oxide nanoparticles appear as a novel tool particularly well adapted to long-term single-molecule tracking.
| Original language | English |
|---|---|
| Article number | 46 |
| Pages (from-to) | 192-198 |
| Number of pages | 7 |
| Journal | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
| Volume | 5705 |
| DOIs | |
| Publication status | Published - 16 Aug 2005 |
| Event | Nanobiophotonics and Biomedical Applications II - San Jose, CA, United States Duration: 24 Jan 2005 → 27 Jan 2005 |
Keywords
- Lanthanide
- Nanoparticles
- Single molecule tracking