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About

Clara Theunis is a leading figure in the advancement of three-dimensional electron microscopy (3D SEM) for the life sciences. Her work has been instrumental in transforming a classic imaging technique into a powerful tool for exploring the complex, three-dimensional architecture of biological systems. Her most cited paper, "Developing 3D SEM in a broad biological context" (2015, 107 citations), serves as a foundational guide for researchers, demonstrating how to apply serial block-face and focused ion beam SEM to a wide range of samples—from plant tissues to animal organs. Theunis’s key contribution lies in bridging the gap between technical methodology and broad biological application, providing clear protocols that have enabled countless labs to visualize cellular networks, synaptic connections, and organelle interactions in unprecedented detail. By making 3D EM accessible and practical, her work has significantly accelerated discoveries in cell biology and neuroscience, cementing her reputation as a key enabler of modern structural biology.