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Köster, Sarah
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Preferred name
Köster, Sarah
Official Name
Köster, Sarah
Alternative Name
Koester, Sarah
Koester, S.
Köster, S. F.
Köster, S.
Main Affiliation
Institut für Röntgenphysik
Email
sarah.koester@uni-goettingen.de
ORCID
Scopus Author ID
56186599600
Researcher ID
M-1983-2014
Now showing 1 - 3 of 3
2017Journal Article Research Paper [["dc.bibliographiccitation.firstpage","1220"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","ChemPhysChem"],["dc.bibliographiccitation.lastpage","1223"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Saldanha, Oliva"],["dc.contributor.author","Graceffa, Rita"],["dc.contributor.author","Hémonnot, Clément Y. J."],["dc.contributor.author","Ranke, Christiane"],["dc.contributor.author","Brehm, Gerrit"],["dc.contributor.author","Liebi, Marianne"],["dc.contributor.author","Marmiroli, Benedetta"],["dc.contributor.author","Weihausen, Britta"],["dc.contributor.author","Burghammer, Manfred"],["dc.contributor.author","Köster, Sarah"],["dc.date.accessioned","2018-02-12T12:27:30Z"],["dc.date.available","2018-02-12T12:27:30Z"],["dc.date.issued","2017"],["dc.description.abstract","Encapsulating reacting biological or chemical samples in microfluidic droplets has the great advantage over single‐phase flows of providing separate reaction compartments. These compartments can be filled in a combinatoric way and prevent the sample from adsorbing to the channel walls. In recent years, small‐angle X‐ray scattering (SAXS) in combination with microfluidics has evolved as a nanoscale method of such systems. Here, we approach two major challenges associated with combining droplet microfluidics and SAXS. First, we present a simple, versatile, and reliable device, which is both suitable for stable droplet formation and compatible with in situ X‐ray measurements. Second, we solve the problem of “diluting” the sample signal by the signal from the oil separating the emulsion droplets by multiple fast acquisitions per droplet and data thresholding. We show that using our method, even the weakly scattering protein vimentin provides high signal‐to‐noise ratio data."],["dc.identifier.doi","10.1002/cphc.201700221"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12175"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Köster (Cellular Biophysics)"],["dc.subject.gro","x-ray scattering"],["dc.subject.gro","cytoskeleton"],["dc.subject.gro","molecular biophysics"],["dc.subject.gro","microfluidics"],["dc.title","Rapid Acquisition of X-Ray Scattering Data from Droplet-Encapsulated Protein Systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]Details DOI2018Journal Article Research Paper [["dc.bibliographiccitation.firstpage","171"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Lab on a Chip"],["dc.bibliographiccitation.lastpage","178"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Denz, Manuela"],["dc.contributor.author","Brehm, Gerrit"],["dc.contributor.author","Hémonnot, Clément Y. J."],["dc.contributor.author","Spears, Heidi"],["dc.contributor.author","Wittmeier, Andrew"],["dc.contributor.author","Cassini, Chiara"],["dc.contributor.author","Saldanha, Oliva"],["dc.contributor.author","Perego, Eleonora"],["dc.contributor.author","Diaz, Ana"],["dc.contributor.author","Köster, Sarah"],["dc.contributor.author","Burghammer, Manfred"],["dc.date.accessioned","2021-06-01T10:50:48Z"],["dc.date.available","2021-06-01T10:50:48Z"],["dc.date.issued","2018"],["dc.description.abstract","The combination of microfluidics and X-ray methods attracts a lot of attention from researchers as it brings together the high controllability of microfluidic sample environments and the small length scales probed by X-rays. In particular, the fields of biophysics and biology have benefited enormously from such approaches. We introduce a straightforward fabrication method for X-ray compatible microfluidic devices made solely from cyclic olefin copolymers. We benchmark the performance of the devices against other devices including more commonly used Kapton windows and obtain data of equal quality using small angle X-ray scattering. An advantage of the devices presented here is that no gluing between interfaces is necessary, rendering the production very reliable. As a biophysical application, we investigate the early time points of the assembly of vimentin intermediate filament proteins into higher-order structures. This weakly scattering protein system leads to high quality data in the new devices, thus opening up the way for numerous future applications."],["dc.identifier.doi","10.1039/C7LC00824D"],["dc.identifier.eissn","1473-0189"],["dc.identifier.issn","1473-0197"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/86792"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.notes.status","zu prüfen"],["dc.relation.eissn","1473-0189"],["dc.relation.issn","1473-0197"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Köster (Cellular Biophysics)"],["dc.subject.gro","x-ray scattering"],["dc.subject.gro","microfluidics"],["dc.title","Cyclic olefin copolymer as an X-ray compatible material for microfluidic devices"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]Details DOI2020Preprint [["dc.contributor.author","Epple, Robert"],["dc.contributor.author","Krüger, Dennis"],["dc.contributor.author","Berulava, Tea"],["dc.contributor.author","Brehm, Gerrit"],["dc.contributor.author","Islam, Rezaul"],["dc.contributor.author","Köster, Sarah"],["dc.contributor.author","Fischer, André"],["dc.date.accessioned","2022-02-16T13:26:06Z"],["dc.date.available","2022-02-16T13:26:06Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1101/2020.11.27.401901"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/99925"],["dc.identifier.url","https://mbexc.uni-goettingen.de/literature/publications/138"],["dc.identifier.url","https://sfb1286.uni-goettingen.de/literature/publications/92"],["dc.relation","EXC 2067: Multiscale Bioimaging"],["dc.relation","SFB 1286: Quantitative Synaptologie"],["dc.relation","SFB 1286 | B01: Der Verteilung struktureller Lipide in synaptischen Membranen"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Köster (Cellular Biophysics)"],["dc.relation.workinggroup","RG A. Fischer (Epigenetics and Systems Medicine in Neurodegenerative Diseases)"],["dc.subject.gro","other"],["dc.title","The Coding And Small-Non-Coding Hippocampal Synaptic RNAome"],["dc.type","preprint"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]Details DOI