Back

Angström Resolution with Flow Immunofluorescence Localization Microscopy (FILM)

Bartmuss, J.; Leinhaas, A.; Frank-Wiebe, T.; Schmidt-Supprian, M.; Kinkhabwala, A.

2025-12-18 cell biology
10.64898/2025.12.16.694546 bioRxiv
Show abstract

We present flow immunofluorescence localization microscopy (FILM) as a novel paradigm for single-molecule localization microscopy (SMLM). FILM is based on continuous flow of standard fluorescent binders, including conventional antibodies or nanoscale probes, over a fixed sample along with gentle imaging-to-photobleaching of the stochastically bound probes with an LED on a widefield microscope setup. Gentle illumination yields 104-106 photons per fluorophore corresponding to localization precision at the few nanometer to [A]ngstrom scales. We employ FILM to localize diverse markers in cultured cells and immunological synapses down to 9 [A] resolution, and for sequential localization of multiple targets in tissue slices. Requiring only minimal hardware and off-the-shelf probes, FILM offers an accessible and versatile route for serial SMLM at molecular resolution.

Matching journals

The top 4 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.