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Resolving the distances: Rectangular DNA origami labeled with fluorophores at specific positions has been used as a nanoscopic ruler. Super-resolution microscopy based on the subsequent localization of single molecules enables two fluorophores at a distance of about 90 nm to be optically resolved. This combination of subdiffraction imaging and DNA nanotechnology opens up new avenues for studying nanostructures and their dynamics.
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Steinhauer et al. (2009) studied this question.
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