Abstract
Progress in nanosciences and life sciences is closely related to developments of high resolution imaging techniques. We introduce a technique which produces correlated topography and fluorescence lifetime images with nanometer resolution. Spot sizes below 5 nm are achieved by quenching of the fluorescence with silicon probes of an atomic force microscope which is combined and synchronized with a confocal fluorescence lifetime microscope. Moreover, we demonstrate the ability to locate and resolve the position of two fluorescent molecules separated by 20.7 nm on a DNA origami triangle with 120 nm side length by correlating topography and fluorescence data. With this method, we anticipate applications in nano- and life sciences, such as the determination of the structure of macromolecular assemblies on surfaces, molecular interactions, as well as the structure and function of nanomaterials.
Original language | English (US) |
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Article number | 1 |
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Optical Nanoscopy |
Volume | 2 |
Issue number | 1 |
DOIs | |
State | Published - 2013 |
Keywords
- Correlated atomic force and fluorescence microscopy
- Dna nanostructures
- Optical ultraresolution microscopy
- Single molecule detection
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics