Investigation of nanolocal fluorescence resonance energy transfer for scanning probe microscopy
- 7 June 1999
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 74 (23) , 3453-3455
- https://doi.org/10.1063/1.124125
Abstract
Fluorescence resonance energy transfer (FRET) has been observed between donor dye molecules deposited onto the sample surface and acceptor dye molecules deposited onto the scanning near-field optical microscope (SNOM) or atomic force microscope tip. FRET was observed only when the tip acquired a contact with the sample and took place in a region of few tens of square nanometers in size when thousands (hundreds) of molecules are involved. In view of the obtained results, the perspectives for the construction of a one-atom FRET SNOM are described.Keywords
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