Gregor, Ingo

[["dc.bibliographiccitation.firstpage","860"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Nature Photonics"],["dc.bibliographiccitation.lastpage","865"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Ghosh, Arindam"],["dc.contributor.author","Sharma, Akshita"],["dc.contributor.author","Chizhik, Alexey I."],["dc.contributor.author","Isbaner, Sebastian"],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Tsukanov, Roman"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2020-12-10T18:09:58Z"],["dc.date.available","2020-12-10T18:09:58Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1038/s41566-019-0510-7"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/73814"],["dc.identifier.url","https://mbexc.uni-goettingen.de/literature/publications/21"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation","EXC 2067: Multiscale Bioimaging"],["dc.relation.workinggroup","RG Enderlein"],["dc.title","Graphene-based metal-induced energy transfer for sub-nanometre optical localization"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","letter_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","11839"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","ACS Nano"],["dc.bibliographiccitation.lastpage","11846"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Chizhik, Anna M."],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Pfaff, Janine"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Chizhik, Alexey I."],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Kehlenbach, Ralph H."],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2018-04-23T11:48:40Z"],["dc.date.available","2018-04-23T11:48:40Z"],["dc.date.issued","2017"],["dc.description.abstract","The nuclear envelope, comprising the inner and the outer nuclear membrane, separates the nucleus from the cytoplasm and plays a key role in cellular functions. Nuclear pore complexes (NPCs), which are embedded in the nuclear envelope, control transport of macromolecules between the two compartments. Here, using dual-color metal-induced energy transfer (MIET), we determine the axial distance between Lap2β and Nup358 as markers for the inner nuclear membrane and the cytoplasmic side of the NPC, respectively. Using MIET imaging, we reconstruct the 3D profile of the nuclear envelope over the whole basal area, with an axial resolution of a few nanometers. This result demonstrates that optical microscopy can achieve nanometer axial resolution in biological samples and without recourse to complex interferometric approaches."],["dc.identifier.doi","10.1021/acsnano.7b04671"],["dc.identifier.gro","3142097"],["dc.identifier.pmid","28921961"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13555"],["dc.identifier.url","https://sfb1190.med.uni-goettingen.de/production/literature/publications/13"],["dc.language.iso","en"],["dc.notes.intern","lifescience updates Crossref Import"],["dc.notes.status","final"],["dc.relation","SFB 1190: Transportmaschinen und Kontaktstellen zellulärer Kompartimente"],["dc.relation","SFB 1190 | P07: Dynamik von Proteinen der inneren Kernmembran"],["dc.relation.issn","1936-0851"],["dc.relation.workinggroup","RG Kehlenbach (Nuclear Transport)"],["dc.title","Three-Dimensional Reconstruction of Nuclear Envelope Architecture Using Dual-Color Metal-Induced Energy Transfer Imaging"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3249"],["dc.bibliographiccitation.issue","17"],["dc.bibliographiccitation.journal","Lab on a Chip"],["dc.bibliographiccitation.lastpage","3257"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Ghosh, Siddharth"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Gregor, Ingo"],["dc.date.accessioned","2021-04-14T08:23:11Z"],["dc.date.available","2021-04-14T08:23:11Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1039/d0lc00398k"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/80820"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1473-0189"],["dc.relation.issn","1473-0197"],["dc.title","Single-molecule confinement with uniform electrodynamic nanofluidics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3320"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Nano Letters"],["dc.bibliographiccitation.lastpage","3326"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Baronsky, Thilo"],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Brückner, Bastian Rouven"],["dc.contributor.author","Schäfer, Jonas"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Isbaner, Sebastian"],["dc.contributor.author","Hähnel, Dirk"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Enderlein, Jörg"],["dc.contributor.author","Janshoff, Andreas"],["dc.contributor.author","Chizhik, Alexey I."],["dc.date.accessioned","2018-04-23T11:48:51Z"],["dc.date.available","2018-04-23T11:48:51Z"],["dc.date.issued","2017"],["dc.description.abstract","The biological process of the epithelial-to-mesenchymal transition (EMT) allows epithelial cells to enhance their migratory and invasive behavior and plays a key role in embryogenesis, fibrosis, wound healing, and metastasis. Among the multiple biochemical changes from an epithelial to a mesenchymal phenotype, the alteration of cellular dynamics in cell–cell as well as cell–substrate contacts is crucial. To determine these variations over the whole time scale of the EMT, we measure the cell–substrate distance of epithelial NMuMG cells during EMT using our newly established metal-induced energy transfer (MIET) microscopy, which allows one to achieve nanometer axial resolution. We show that, in the very first hours of the transition, the cell–substrate distance increases substantially, but later in the process after reaching the mesenchymal state, this distance is reduced again to the level of untreated cells. These findings relate to a change in the number of adhesion points and will help to better understand remodeling processes associated with wound healing, embryonic development, cancer progression, or tissue regeneration."],["dc.identifier.doi","10.1021/acs.nanolett.7b01558"],["dc.identifier.gro","3142100"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13588"],["dc.language.iso","en"],["dc.notes.intern","lifescience updates Crossref Import"],["dc.notes.status","final"],["dc.relation.issn","1530-6984"],["dc.title","Cell–Substrate Dynamics of the Epithelial-to-Mesenchymal Transition"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","40007"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","EPL (Europhysics Letters)"],["dc.bibliographiccitation.volume","108"],["dc.contributor.author","Karedla, N."],["dc.contributor.author","Gregor, I."],["dc.contributor.author","Enderlein, J."],["dc.date.accessioned","2018-04-23T11:49:26Z"],["dc.date.available","2018-04-23T11:49:26Z"],["dc.date.issued","2014"],["dc.description.abstract","We present a path-integral approach for finding solutions of the convection-diffusion equation with inhomogeneous fluid flow, which are notoriously difficult to solve. We derive a general approximate analytical solution of the convection-diffusion equation which is in principle applicable to arbitrary flow profiles. As examples, we apply this approximation to the diffusion in a linear shear flow and in a parabolic flow in infinite space, and to the diffusion in a linear shear flow over an impenetrable interface. This last case is particularly important for problems involving diffusive transport towards an interface with advection. We compare the analytical approximation with numerical solutions which are obtained from a conventional finite-element time-difference method."],["dc.identifier.doi","10.1209/0295-5075/108/40007"],["dc.identifier.gro","3142115"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13695"],["dc.language.iso","en"],["dc.notes.intern","lifescience updates Crossref Import"],["dc.notes.status","final"],["dc.relation.issn","0295-5075"],["dc.title","Analytical approximations of the diffusive dispersion in fluid flows"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","32"],["dc.bibliographiccitation.journal","Methods"],["dc.bibliographiccitation.lastpage","39"],["dc.bibliographiccitation.volume","140-141"],["dc.contributor.author","Ghosh, Arindam"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Thiele, Jan Christoph"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2020-12-10T15:21:49Z"],["dc.date.available","2020-12-10T15:21:49Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.ymeth.2018.02.009"],["dc.identifier.issn","1046-2023"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/73174"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.orgunit","III. Physikalisches Institut - Biophysik"],["dc.title","Fluorescence lifetime correlation spectroscopy: Basics and applications"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","173002"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","17"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.lastpage","5"],["dc.bibliographiccitation.volume","115"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Stein, Simon C."],["dc.contributor.author","Hähnel, Dirk"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Chizhik, Anna"],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2018-04-23T11:49:21Z"],["dc.date.available","2018-04-23T11:49:21Z"],["dc.date.issued","2015"],["dc.description.abstract","The emission properties of most fluorescent emitters, such as dye molecules or solid-state color centers, can be well described by the model of an oscillating electric dipole. However, the orientations of their excitation and emission dipoles are, in most cases, not parallel. Although single molecule excitation and emission dipole orientation measurements have been performed in the past, no experimental method has so far looked at the three-dimensional excitation and emission dipole geometry of individual emitters simultaneously. We present the first experimental study, using defocused imaging in conjunction with radially polarized excitation scanning, to measure both the excitation as well as emission dipole orientations of single molecules, which allows us to sample the distribution of their mutual orientation. We find an unexpectedly broad distribution of the angle between both dipoles which we attribute to the interaction between the observed molecules and the substrate they are immobilized on."],["dc.identifier.doi","10.1103/PhysRevLett.115.173002"],["dc.identifier.gro","3142108"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13677"],["dc.language.iso","en"],["dc.notes.intern","lifescience updates Crossref Import"],["dc.notes.status","final"],["dc.relation.eissn","1079-7114"],["dc.relation.issn","0031-9007"],["dc.relation.issn","0031-9007"],["dc.title","Simultaneous Measurement of the Three-Dimensional Orientation of Excitation and Emission Dipoles"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1695"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Nano Letters"],["dc.bibliographiccitation.lastpage","1700"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Ghosh, Subhabrata"],["dc.contributor.author","Chizhik, Anna M."],["dc.contributor.author","Yang, Gaoling"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Oron, Dan"],["dc.contributor.author","Weiss, Shimon"],["dc.contributor.author","Enderlein, Jörg"],["dc.contributor.author","Chizhik, Alexey I."],["dc.date.accessioned","2020-12-10T18:09:12Z"],["dc.date.available","2020-12-10T18:09:12Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1021/acs.nanolett.8b04695"],["dc.identifier.eissn","1530-6992"],["dc.identifier.issn","1530-6984"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/73565"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Excitation and Emission Transition Dipoles of Type-II Semiconductor Nanorods"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1689"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Nanophotonics"],["dc.bibliographiccitation.lastpage","1699"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Chizhik, Alexey"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2020-12-10T18:42:27Z"],["dc.date.available","2020-12-10T18:42:27Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1515/nanoph-2019-0201"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16521"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77956"],["dc.identifier.url","https://mbexc.uni-goettingen.de/literature/publications/12"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.relation","EXC 2067: Multiscale Bioimaging"],["dc.relation.orgunit","Fakultät für Physik"],["dc.relation.workinggroup","RG Enderlein"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Metal-induced energy transfer"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","9429"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Optics Express"],["dc.bibliographiccitation.lastpage","9445"],["dc.bibliographiccitation.volume","24"],["dc.contributor.author","Isbaner, Sebastian"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Stein, Simon Christoph"],["dc.contributor.author","Chizhik, Anna"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2021-11-22T14:31:36Z"],["dc.date.available","2021-11-22T14:31:36Z"],["dc.date.issued","2016"],["dc.description.abstract","We present a comprehensive theory of dead-time effects on Time-Correlated Single Photon Counting (TCSPC) as used for fluorescence lifetime measurements, and develop a correction algorithm to remove these artifacts. We apply this algorithm to fluorescence lifetime measurements as well as to Fluorescence Lifetime Imaging Microscopy (FLIM), where rapid data acquisition is necessarily connected with high count rates. There, dead-time effects cannot be neglected, and lead to distortions in the observed lifetime image. The algorithm is quite general and completely independent of the particular nature of the measured signal. It can also be applied to any other single-event counting measurement with detector and/or electronics dead-time."],["dc.identifier.doi","10.1364/OE.24.009429"],["dc.identifier.gro","3142106"],["dc.identifier.pmid","27137558"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14123"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/93392"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.notes.status","final"],["dc.relation.issn","1094-4087"],["dc.rights.access","openAccess"],["dc.subject","fluorescence; lifetime; imaging"],["dc.title","Dead-time correction of fluorescence lifetime measurements and fluorescence lifetime imaging"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]