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@ARTICLE{Dickerson:907441,
author = {Dickerson, Joshua L. and Lu, Penghan and Hristov, Dilyan
and Dunin-Borkowski, Rafal and Russo, Christopher J.},
title = {{I}maging biological macromolecules in thick specimens:
{T}he role of inelastic scattering in cryo{EM}},
journal = {Ultramicroscopy},
volume = {237},
issn = {0304-3991},
address = {Amsterdam},
publisher = {Elsevier Science},
reportid = {FZJ-2022-02039},
pages = {113510 -},
year = {2022},
abstract = {We investigate potential improvements in using electron
cryomicroscopy to image thick specimens with high-resolution
phase contrast imaging. In particular, using model
experiments, electron scattering theory, Monte Carlo and
multislice simulations, we determine the potential for
improving electron cryomicrographs of proteins within a cell
using chromatic aberration () correction. We show that
inelastically scattered electrons lose a quantifiable amount
of spatial coherence as they transit the specimen, yet can
be used to enhance the signal from thick biological
specimens (in the 1000 to 5000 Å range) provided they are
imaged close to focus with an achromatic lens. This loss of
information quantified here, which we call “specimen
induced decoherence”, is a fundamental limit on imaging
biological molecules in situ. We further show that with
foreseeable advances in transmission electron microscope
technology, it should be possible to directly locate and
uniquely identify sub-100 kDa proteins without the need for
labels, in a vitrified specimen taken from a cell.},
cin = {ER-C-1},
ddc = {570},
cid = {I:(DE-Juel1)ER-C-1-20170209},
pnm = {5351 - Platform for Correlative, In Situ and Operando
Characterization (POF4-535)},
pid = {G:(DE-HGF)POF4-5351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:35367900},
UT = {WOS:000790826100002},
doi = {10.1016/j.ultramic.2022.113510},
url = {https://juser.fz-juelich.de/record/907441},
}