New microscopy technique enables single-exposure super-resolution imaging of living cells

A team of scientists has unveiled a new fluorescence microscopy method that produces super‑resolution images from a single camera exposure. The technique promises to capture rapid cellular movements that have traditionally been difficult to observe with conventional super‑resolution approaches, which often require multiple exposures or time‑intensive scanning.

Unlike existing methods such as STED, PALM, or STORM that rely on sequential imaging and complex post‑processing, the single‑exposure approach integrates advanced optical encoding and computational reconstruction into one shot. This reduces the total light dose delivered to the specimen, mitigating photobleaching and phototoxicity, and enables researchers to freeze fast events—such as vesicle trafficking or cytoskeletal remodeling—within a single frame. Early tests on live mammalian cells have demonstrated sub‑100‑nanometre spatial resolution while preserving the ability to monitor dynamic processes in real time.

The new method could broaden the scope of live‑cell imaging, allowing biologists to study transient phenomena that were previously inaccessible. By simplifying the imaging workflow and preserving cellular viability, it may accelerate discoveries in cell biology, neurobiology, and drug development, paving the way for more detailed investigations of intracellular dynamics.