Miniaturizing EM Sample Preparation: Opportunities, Challenges, and "Visual Proteomics" - PubMed
Review
. 2018 Mar;18(5-6):e1700176.
doi: 10.1002/pmic.201700176.
Affiliations
- PMID: 29441686
- DOI: 10.1002/pmic.201700176
Review
Miniaturizing EM Sample Preparation: Opportunities, Challenges, and "Visual Proteomics"
Stefan A Arnold et al. Proteomics. 2018 Mar.
Abstract
This review compares and discusses conventional versus miniaturized specimen preparation methods for transmission electron microscopy (TEM). The progress brought by direct electron detector cameras, software developments and automation have transformed transmission cryo-electron microscopy (cryo-EM) and made it an invaluable high-resolution structural analysis tool. In contrast, EM specimen preparation has seen very little progress in the last decades and is now one of the main bottlenecks in cryo-EM. Here, we discuss the challenges faced by specimen preparation for single particle EM, highlight current developments, and show the opportunities resulting from the advanced miniaturized and microfluidic sample grid preparation methods described, such as visual proteomics and time-resolved cryo-EM studies.
Keywords: cryo-EM; microfluidics; negative stain; sample preparation; transmission electron microscopy.
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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