Universal Super-Resolution Multiplexing by DNA Exchange.

Supporting Information Universal Super-Resolution Multiplexing by DNA Exchange

DNA-barcoded labeling probes for highly multiplexed Exchange-PAINT imaging.

Recent advances in super-resolution fluorescence imaging allow researchers to overcome the classical diffraction limit of light, and are already starting to make an impact in biology. However, a key challenge for traditional super-resolution methods is their limited multiplexing capability, which prevents a systematic understanding of multi-protein interactions on the nanoscale. Exchange-PAINT,...

Rapid sequential in situ multiplexing with DNA-Exchange-Imaging

To decipher the molecular mechanism of biological function, it is critical to map the molecular composition of individual cells in the context of their biological environment in situ. Immunofluorescence (IF) provides specific labeling for molecular profiling. However, conventional IF methods have finite multiplexing capabilities due to spectral overlap of the fluorophores. Various sequential im...

Optical imaging of individual biomolecules in densely packed clusters

Recent advances in fluorescence super-resolution microscopy have allowed subcellular features and synthetic nanostructures down to 10–20 nm in size to be imaged. However, the direct optical observation of individual molecular targets (∼5 nm) in a densely packed biomolecular cluster remains a challenge. Here, we show that such discrete molecular imaging is possible using DNA-PAINT (points accumu...

Multiplexed confocal and super-resolution fluorescence imaging of cytoskeletal and neuronal synapse proteins

Neuronal synapses contain dozens of protein species whose expression levels and localizations are key determinants of synaptic transmission and plasticity. The spectral properties of fluorophores used in conventional microscopy limit the number of measured proteins to four species within a given sample. The ability to perform high-throughput confocal or super-resolution imaging of many proteins...