ArticleProceedings of the National Academy of Sciences of the United States of America2025
Cryosectioning-enhanced super-resolution microscopy for single-protein imaging across cells and tissues.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Accelerated Left-Handed DNA-PAINT Using Fluorogenic Probes.Nano letters · 2026Article
- Fluorogenic speed-optimized DNA-PAINT probes enable super-resolution imaging of whole cells.bioRxiv : the preprint server for biology · 2026Article
- A Simple, Ultrastable, and Cost-Effective Oxygen-Scavenging System for Long-Term DNA-PAINT Imaging.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Illuminating biomolecular assemblies in gene regulation.Biophysical reviews · 2025Review
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16 authors.
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Abstract
DNA-points accumulation for imaging in nanoscale topography (DNA-PAINT) enables nanoscale imaging with virtually unlimited multiplexing and molecular counting. Here, we address challenges, such as variable imaging performance and target accessibility, that can limit its broader applicability. Specifically, we enhance its capacity for robust single-protein imaging and molecular counting by optimizing the integration of total internal reflection fluorescence microscopy with physical sectioning, in particular, Tokuyasu cryosectioning. Our method, tomographic and kinetically enhanced DNA-PAINT (tkPAINT), achieves 3 nm localization precision across diverse samples, enhanced imager binding, and improved cellular integrity. tkPAINT can facilitate molecular counting with DNA-PAINT inside the nucleus, as demonstrated through its quantification of the in situ abundance of RNA Polymerase II in both HeLa cells as well as mouse tissues. Anticipating that tkPAINT could become a versatile tool for the exploration of biomolecular organization and interactions across cells and tissues, we also demonstrate its capacity to support multiplexing, multimodal targeting of proteins and nucleic acids, and three-dimensional (3D) imaging.
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