SPIFFI Turns Every Microscope Frame Into a Super-Resolution Movie of Living Cells
SMRTR summary
For decades, scientists studying living cells have faced a cruel paradox: the moment you try to see something small enough to matter, it moves.
A team at EPFL's School of Engineering has found a way around that. Their method, called SPIFFI, exploits something hidden in plain sight. The fluorescent tags biologists already use emit light that's polarized differently depending on molecular orientation. SPIFFI captures that light in four polarization directions simultaneously, effectively doubling resolution in real time, down to around 160 nanometers per frame, and reaching roughly 80 nanometers with modest additional processing.
The payoff is striking. Mitochondria appear not as blobs but as hollow tubes. Fission and fusion events unfold on screen as they happen. Microtubules move without the ghostly blur that once made motion unreadable.
Aleksandra Radenovic noted the technique allows "multidimensional imaging at considerably faster rates than conventional microscopes."
Perhaps most practically, SPIFFI attaches to existing fluorescence microscopes. No replacement required.
SMRTR provides this summary for quick context. The original article belongs to TechEBlog.
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