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@ARTICLE{Burchert:634793,
author = {Burchert, Jan-Philipp and Frohn, Jasper and Rölleke,
Ulrike and Bruns, Hendrik and Yu, Boram and Gleber,
Sophie-Charlotte and Stange, Roland and Busse, Madleen and
Osterhoff, Markus and Salditt, Tim and Koester, Sarah},
title = {{X}-ray phase-contrast tomography of cells manipulated with
an optical stretcher},
journal = {Journal of synchrotron radiation},
volume = {31},
number = {4},
issn = {0909-0495},
address = {Chester},
publisher = {IUCr},
reportid = {PUBDB-2025-02617},
pages = {923 - 935},
year = {2024},
abstract = {X-rays can penetrate deeply into biological cells and thus
allow for examination of their internal structures with high
spatial resolution. In this study, X-ray phase-contrast
imaging and tomography is combined with an X-ray-compatible
optical stretcher and microfluidic sample delivery. Using
this setup, individual cells can be kept in suspension while
they are examined with the X-ray beam at a synchrotron. From
the recorded holograms, 2D phase shift images that are
proportional to the projected local electron density of the
investigated cell can be calculated. From the tomographic
reconstruction of multiple such projections the 3D electron
density can be obtained. The cells can thus be studied in a
hydrated or even living state, thus avoiding artifacts from
freezing, drying or embedding, and can in principle also be
subjected to different sample environments or mechanical
strains. This combination of techniques is applied to living
as well as fixed and stained NIH3T3 mouse fibroblasts and
the effect of the beam energy on the phase shifts is
investigated. Furthermore, a 3D algebraic reconstruction
scheme and a dedicated mathematical description is used to
follow the motion of the trapped cells in the optical
stretcher for multiple rotations.},
cin = {DOOR ; HAS-User},
ddc = {550},
cid = {I:(DE-H253)HAS-User-20120731},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / DFG project
G:(GEPRIS)390729940 - EXC 2067: Multiscale Bioimaging: Von
molekularen Maschinen zu Netzwerken erregbarer Zellen
(390729940) / DFG project G:(GEPRIS)429958739 - Alternative
Assemblierungs-Mechanismen von pathologischen
Desmin-Mutanten: Filamentbildung im Wettbewerb mit
Aggregation (429958739) / DFG project G:(GEPRIS)460248799 -
DAPHNE4NFDI - DAten aus PHoton- und Neutronen Experimenten
für NFDI (460248799) / 05K22MG3 - FastScan: schnelle,
korrelative Abbildung biologischer Materie mit scanning SAXS
und optischer Fluoreszenzmikroskopie. (BMBF-05K22MG3)},
pid = {G:(DE-HGF)POF4-6G3 / G:(GEPRIS)390729940 /
G:(GEPRIS)429958739 / G:(GEPRIS)460248799 /
G:(DE-Ds200)BMBF-05K22MG3},
experiment = {EXP:(DE-H253)P-P10-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38861370},
doi = {10.1107/S1600577524003618},
url = {https://bib-pubdb1.desy.de/record/634793},
}