Abstract
An ultrahigh-resolution colocalization method based on the simultaneous acquisition and analysis of spectrally separated images of the excitation point-spread function of point-like fluorescent probes is reviewed. It is shown that molecular distances can be measured with accuracy better than 10 nm using conventional far-field optics. A detailed account of the methodology, theoretical considerations, signal processing, and data fitting algorithms is given.
| Original language | English |
|---|---|
| Pages (from-to) | 87-102 |
| Number of pages | 16 |
| Journal | Methods |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| State | Published - Sep 2001 |
| Externally published | Yes |
Bibliographical note
Funding Information:We thank Fabien Pinaud and Paul Alivisatos for providing the nanocrystals used in this work; Tsing-Hua Her, Ted Laurence, and Alois Sonnleitner for useful discussions and help with the optics; and Daniel S. Chemla for his continuous and enthusiastic support. This work was supported by the National Institutes of Health, National Center for Research Resources, Grant 1 R01 RR1489101, through the U.S. Department of Energy under Contract DE-AC03-76SF00098. X.M. is an HFSP Postdoctoral Fellow.
Funding
We thank Fabien Pinaud and Paul Alivisatos for providing the nanocrystals used in this work; Tsing-Hua Her, Ted Laurence, and Alois Sonnleitner for useful discussions and help with the optics; and Daniel S. Chemla for his continuous and enthusiastic support. This work was supported by the National Institutes of Health, National Center for Research Resources, Grant 1 R01 RR1489101, through the U.S. Department of Energy under Contract DE-AC03-76SF00098. X.M. is an HFSP Postdoctoral Fellow.
| Funders | Funder number |
|---|---|
| National Institutes of Health | |
| U.S. Department of Energy | DE-AC03-76SF00098 |
| National Center for Research Resources | R01RR014891, 1 R01 RR1489101 |
Keywords
- Confocal
- Diffraction limit
- Fluorescence
- Microscopy
- Quantum dot
- Semiconductor nanocrystal
- Single molecule
- Superresolution
- TransFluoSphere
- Two-photon
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