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Updated: Jun 12, 2025

Author Spotlight: Optimizing Grid Preparation for Enhanced Cryoelectron Tomography
Published on: December 15, 2023
Adaptation of the HistoEnder, an open-source 3D printer for automated transmission electron microscopy grid staining
1Morphology Core, Schepens Eye Research Institute of Mass Eye and Ear Boston, Boston, MA, USA.
Abstract:
The HistoEnder, an inexpensive open-source 3D printer published as an automated histological slide stainer, has been adapted for conventional biological transmission electron microscopy (TEM) batch grid staining. Details are presented of the 3D printed apparatus, assembly, G-code programming, and operation on the 3D printer to post-section stains up to 20 grids through aqueous uranyl acetate, distilled water rinses, and lead stains. TEM Results are identical to manual staining with the advantages of automation using the low cost HistoEnder, apparatus, and equipment.
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