Scientists at the University of Gothenburg and Chalmers University of Technology have taught an artificial intelligence to wield optical tweezers for rapid particle analysis. The system captures particles, takes measurements, and loads fresh samples entirely without human intervention.
The breakthrough addresses a key bottleneck in micro- and nanoscale research, where manual operation of optical tweezers has long limited throughput. By automating the process, the team has enabled the analysis of hundreds of particles per hour.
This approach could transform fields ranging from cell biology to materials science. Optical tweezers use highly focused laser beams to trap and manipulate tiny objects, but their utility has been constrained by the need for skilled human handlers.
The AI platform learns to optimize its movements, reducing the time required for each sorting cycle. While the researchers did not disclose exact speed improvements over manual methods, they emphasized that the system operates consistently around the clock.
Further validation will be needed to confirm the platform's reliability across different particle types and experimental conditions.