Analysis Method for Measuring Submicroscopic Distances with Blinking Quantum Dots

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A method is described that takes advantage of the intermittency (“blinking”) in the fluorescence of quantum dots (QDs) to measure absolute positions of closely spaced QDs. The concept is that even if two QDs are separated by only tens of nanometers, the position of each QD is resolvable if the point spread function of each can be imaged independently of the other. In the case of QDs, this is possible if each QD separately blinks...
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