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Imaging of Vascular Smooth Muscle Cells with Soft X-Ray Spectromicroscopy
KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Biomedicinsk fysik och röntgenfysik.
Vise andre og tillknytning
2011 (engelsk)Inngår i: Microscopy and Microanalysis, ISSN 1431-9276, E-ISSN 1435-8115, Vol. 17, nr 6, s. 991-1001Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Using X-ray microscopy and spectromicroscopy, vascular smooth muscle cells (VSMCs) were imaged, prepared without using additional embedding material or staining, but by applying simple, noncryo fixation techniques. The cells were imaged with a compact source transmission X-ray microscope and a scanning transmission X-ray microscope (STXM). With the STXM, spectromicroscopy was performed at the C K-edge and the Ca L(III,II)-edges. VSMCs were chosen because of their high amount of actin stress fibers, so that the actin cytoskeleton should be visible. Other parts of the cell, such as the nucleus and organelles, were also identified from the micrographs. Both in the spectra and the images, the effects of the different preparation procedures were observable. Furthermore, Ca hotspots were detected and their density is determined.

sted, utgiver, år, opplag, sider
2011. Vol. 17, nr 6, s. 991-1001
Emneord [en]
X-ray microscopy, vascular smooth muscle cells, spectromicroscopy, NEXAFS, calcium, radiation damage
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-55244DOI: 10.1017/S1431927611012165ISI: 000297832300019Scopus ID: 2-s2.0-82055172650OAI: oai:DiVA.org:kth-55244DiVA, id: diva2:474519
Merknad
QC 20120109Tilgjengelig fra: 2012-01-09 Laget: 2012-01-02 Sist oppdatert: 2017-12-08bibliografisk kontrollert

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