Researchers at the European Molecular Biology Laboratory (EMBL) in Grenoble, France, have developed EasyGrid, an automated instrument for sample preparation and quality control in cryo-electron microscopy (cryo-EM). The system aims to streamline the process of preparing biological samples for high-resolution structural analysis.
Cryo-EM allows scientists to determine the three-dimensional structures of proteins and other biomolecules at near-atomic resolution. However, sample preparation has been a bottleneck, often requiring manual steps that can introduce variability and reduce throughput. EasyGrid automates key steps, including grid preparation, vitrification, and initial quality assessment.
The system integrates a robotic arm and a camera-based inspection module to check grid quality before imaging. According to EMBL, EasyGrid can process multiple samples in parallel, reducing preparation time from hours to minutes. The technology is designed to improve reproducibility and accessibility for structural biology labs.
Details of EasyGrid were published in a peer-reviewed journal in 2025. The researchers have made the design open-source to encourage adoption and further development by the scientific community.
