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  Environmental Liquid Cell Technique for Improved Electron Microscopic Imaging of Soft Matter in Solution

Azim, S., Bultema, L., de Kock, M., Osorio-Blanco, E. R., Calderón, M., Gonschior, J., et al. (2020). Environmental Liquid Cell Technique for Improved Electron Microscopic Imaging of Soft Matter in Solution. Microscopy and Microanalysis, xx(xx), xx-xx. doi:10.1017/S1431927620024654.

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environmental-liquid-cell-technique-for-improved-electron-microscopic-imaging-of-soft-matter-in-solution.pdf (Verlagsversion), 2MB
 
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Supplementary Material: Azim et al. supplementary material 1 (.docx), Azim et al. supplementary material 2 (.docx)
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https://dx.doi.org/10.1017/S1431927620024654 (Verlagsversion)
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 Urheber:
Azim, S.1, 2, Autor           
Bultema, L.1, 2, Autor           
de Kock, M.2, 3, Autor
Osorio-Blanco, E. R.4, Autor
Calderón, M.5, 6, Autor
Gonschior, J.2, Autor
Leimkohl, J.-P.7, Autor
Tellkamp, F.7, Autor
Bücker, R.2, Autor
Schulz, E.-C.2, Autor
Keskin, S.8, Autor
de Jonge, N.8, 9, Autor
Kassier, G.2, Autor
Miller, R. J. D.2, 10, Autor
Affiliations:
1International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266714              
2Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_persistent22              
3Centre for Structural Systems Biology, Department of Chemistry, University of Hamburg, ou_persistent22              
4Freie Universität Berlin, Institute of Chemistry and Biochemistry, ou_persistent22              
5POLYMAT & Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, ou_persistent22              
6IKERBASQUE, Basque Foundation for Science, ou_persistent22              
7Machine Physics, Scientific Service Units, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2074322              
8INM–Leibniz Institute for New Materials, ou_persistent22              
9Department of Physics, Saarland University, ou_persistent22              
10Departments of Chemistry and Physics, University of Toronto, ou_persistent22              

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Schlagwörter: controlled nm liquid layer thickness, electron microscopy, environmental liquid cell, in-liquid imaging, structural dynamics
 Zusammenfassung: Liquid-phase transmission electron microscopy is a technique for simultaneous imaging of the structure and dynamics of specimens in a liquid environment. The conventional sample geometry consists of a liquid layer tightly sandwiched between two Si3N4 windows with a nominal spacing on the order of 0.5 μm. We describe a variation of the conventional approach, wherein the Si3N4 windows are separated by a 10-μm-thick spacer, thus providing room for gas flow inside the liquid specimen enclosure. Adjusting the pressure and flow speed of humid air inside this environmental liquid cell (ELC) creates a stable liquid layer of controllable thickness on the bottom window, thus facilitating high-resolution observations of low mass-thickness contrast objects at low electron doses. We demonstrate controllable liquid thicknesses in the range 160 ± 34 to 340 ± 71 nm resulting in corresponding edge resolutions of 0.8 ± 0.06 to 1.7 ± 0.8 nm as measured for immersed gold nanoparticles. Liquid layer thickness 40 ± 8 nm allowed imaging of low-contrast polystyrene particles. Hydration effects in the ELC have been studied using poly-N-isopropylacrylamide nanogels with a silica core. Therefore, ELC can be a suitable tool for in situ investigations of liquid specimens.

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Sprache(n): eng - English
 Datum: 2020-09-182020-03-262020-10-262020-12-072020
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1017/S1431927620024654
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Titel: Microscopy and Microanalysis
  Kurztitel : Microsc. Microanal.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: New York, NY : Cambridge University Press
Seiten: - Band / Heft: xx (xx) Artikelnummer: - Start- / Endseite: xx - xx Identifikator: ISSN: 1431-9276
CoNE: https://pure.mpg.de/cone/journals/resource/991042731793414