研究目的
To review the history of PAINT imaging, focusing on the development of DNA-PAINT, outline its different variations and applications for imaging DNA origamis and cellular proteins via SMLM, and reflect on current challenges.
研究成果
DNA-PAINT has significantly advanced the use of DNA origami in the imaging community, enabling cellular imaging and resolving cellular interactions at the nanoscale. It offers detailed kinetic information about hybridization, incorporation, and stability of DNA origamis. Future developments aim to overcome current technical challenges, such as non-specific binding and the need for better probes and methods for cellular imaging.
研究不足
Non-specific binding of imaging strands to off-target sites, especially in biological settings, and the complexity of achieving quantitative measurements with FRET-based imaging. The need for methods that combine covalent, small, highly specific, and stoichiometric labeling for observing and quantifying proteins of low abundance in their native environment.