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","1472"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","The Journal of Physical Chemistry Letters"],["dc.bibliographiccitation.lastpage","1475"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Schneider, Falk"],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Enderlein, Jörg"],["dc.contributor.author","Chizhik, Alexey I."],["dc.date.accessioned","2018-04-23T11:48:54Z"],["dc.date.available","2018-04-23T11:48:54Z"],["dc.date.issued","2017"],["dc.description.abstract","Precise knowledge of the quantum yield is important for many fluorescence–spectroscopic techniques, for example, for Förster resonance energy transfer. However, to measure it for emitters in a complex environment and at low concentrations is far from being trivial. Using a plasmonic nanocavity, we measure the absolute quantum yield value of lipid-conjugated dyes incorporated into a supported lipid bilayer. We show that for both hydrophobic and hydrophilic molecules the quantum yield of dyes inside the lipid bilayer strongly differs from its value in aqueous solution. This finding is of particular importance for all fluorescence–spectroscopic studies involving lipid bilayers, such as protein–protein or protein–lipid interactions in membranes or direct fluorescence–spectroscopic measurements of membrane physical properties."],["dc.identifier.doi","10.1021/acs.jpclett.7b00422"],["dc.identifier.gro","3142101"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13599"],["dc.language.iso","en"],["dc.notes.intern","lifescience updates Crossref Import"],["dc.notes.status","final"],["dc.relation.issn","1948-7185"],["dc.title","Quantum Yield Measurements of Fluorophores in Lipid Bilayers Using a Plasmonic Nanocavity"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","204201"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","The Journal of Chemical Physics"],["dc.bibliographiccitation.volume","148"],["dc.contributor.author","Karedla, Narain"],["dc.contributor.author","Chizhik, Anna M."],["dc.contributor.author","Stein, Simon C"],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Chizhik, Alexey I."],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2020-05-29T09:29:43Z"],["dc.date.available","2020-05-29T09:29:43Z"],["dc.date.issued","2018-05-28"],["dc.description.abstract","Our paper presents the first theoretical and experimental study using single-molecule Metal-Induced Energy Transfer (smMIET) for localizing single fluorescent molecules in three dimensions. Metal-Induced Energy Transfer describes the resonant energy transfer from the excited state of a fluorescent emitter to surface plasmons in a metal nanostructure. This energy transfer is strongly distance-dependent and can be used to localize an emitter along one dimension. We have used Metal-Induced Energy Transfer in the past for localizing fluorescent emitters with nanometer accuracy along the optical axis of a microscope. The combination of smMIET with single-molecule localization based super-resolution microscopy that provides nanometer lateral localization accuracy offers the prospect of achieving isotropic nanometer localization accuracy in all three spatial dimensions. We give a thorough theoretical explanation and analysis of smMIET, describe its experimental requirements, also in its combination with lateral single-molecule localization techniques, and present first proof-of-principle experiments using dye molecules immobilized on top of a silica spacer, and of dye molecules embedded in thin polymer films."],["dc.identifier.doi","10.1063/1.5027074"],["dc.identifier.pmid","29865842"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66012"],["dc.language.iso","en"],["dc.relation.eissn","1089-7690"],["dc.relation.issn","0021-9606"],["dc.title","Three-dimensional single-molecule localization with nanometer accuracy using Metal-Induced Energy Transfer (MIET) imaging"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["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.issue","1"],["dc.bibliographiccitation.journal","Communications Biology"],["dc.bibliographiccitation.volume","3"],["dc.contributor.author","Ruhlandt, Daja"],["dc.contributor.author","Andresen, Martin"],["dc.contributor.author","Jensen, Nickels"],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Jakobs, Stefan"],["dc.contributor.author","Enderlein, Jörg"],["dc.contributor.author","Chizhik, Alexey I."],["dc.date.accessioned","2021-03-05T08:58:32Z"],["dc.date.available","2021-03-05T08:58:32Z"],["dc.date.issued","2020"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1038/s42003-020-01316-2"],["dc.identifier.pmid","33128009"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17780"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/80175"],["dc.identifier.url","https://mbexc.uni-goettingen.de/literature/publications/87"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-393"],["dc.notes.intern","Merged from goescholar"],["dc.relation","EXC 2067: Multiscale Bioimaging"],["dc.relation.eissn","2399-3642"],["dc.relation.orgunit","Fakultät für Physik"],["dc.relation.workinggroup","RG Enderlein"],["dc.relation.workinggroup","RG Jakobs (Structure and Dynamics of Mitochondria)"],["dc.rights","CC BY 4.0"],["dc.rights.uri","http://creativecommons.org/licenses/by/4.0/"],["dc.title","Absolute quantum yield measurements of fluorescent proteins using a plasmonic nanocavity"],["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","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.firstpage","237"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Nano Letters"],["dc.bibliographiccitation.lastpage","242"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Chizhik, Anna M."],["dc.contributor.author","Stein, Simon"],["dc.contributor.author","Dekaliuk, Mariia O."],["dc.contributor.author","Battle, Christopher"],["dc.contributor.author","Li, Weixing"],["dc.contributor.author","Huss, Anja"],["dc.contributor.author","Platen, Mitja"],["dc.contributor.author","Schaap, Iwan A. T."],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Demchenko, Alexander P."],["dc.contributor.author","Schmidt, Christoph F."],["dc.contributor.author","Enderlein, Jörg"],["dc.contributor.author","Chizhik, Alexey"],["dc.date.accessioned","2017-09-07T11:54:46Z"],["dc.date.available","2017-09-07T11:54:46Z"],["dc.date.issued","2016"],["dc.description.abstract","Success in super-resolution imaging relies on a proper choice of fluorescent probes. Here, we suggest novel easily produced and biocompatible nanoparticles-carbon nanodots-for super-resolution optical fluctuation bioimaging (SOFT). The particles revealed an intrinsic dual-color fluorescence, which corresponds to two subpopulations of particles of different electric charges. The neutral nanoparticles localize to cellular nuclei suggesting their potential use as an inexpensive, easily produced nucleus-specific label. The single particle study revealed that the carbon nanodots possess a unique hybrid combination of fluorescence properties exhibiting characteristics of both dye molecules and semiconductor nanocrystals. The results suggest that charge trapping and redistribution on the surface of the particles triggers their transitions between emissive and dark states. These findings open up new possibilities for the utilization of carbon nanodots in the various super-resolution microscopy methods based on stochastic optical switching."],["dc.identifier.doi","10.1021/acs.nanolett.5b03609"],["dc.identifier.gro","3141754"],["dc.identifier.isi","000368322700038"],["dc.identifier.pmid","26605640"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/702"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.eissn","1530-6992"],["dc.relation.issn","1530-6984"],["dc.title","Super-Resolution Optical Fluctuation Bio-Imaging with Dual-Color Carbon Nanodots"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1348"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Nano Letters"],["dc.bibliographiccitation.lastpage","1351"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Chizhik, Alexey I."],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Enderlein, Jörg"],["dc.date.accessioned","2018-04-23T11:49:29Z"],["dc.date.available","2018-04-23T11:49:29Z"],["dc.date.issued","2013"],["dc.description.abstract","Using our nanocavity-based method for precise determination of the absolute quantum yield values, we measure the quantum yield of each of the three different chromophores types with strongly overlapping absorption spectra in a multicolor solution, which is impossible to do by any other existing technique. By measuring the modification of the radiative rate of the chromophores at different cavity lengths, we extract the quantum yield of CdSe/ZnS semiconductor nanocrystals emitting at three different wavelengths and excited by a single wavelength in the multicolor solution. Using several detection channels, we show that only one measurement is needed for determining the quantum yield values of all the types of chromophores in the sample. The obtained results show a very good agreement with the values commonly observed using other techniques. The nanocavity-based method opens up new opportunities of determining fluorescence quantum yields in complex systems and can be used for a big variety of fluorescence studies where multichromophore samples are involved."],["dc.identifier.doi","10.1021/nl400313z"],["dc.identifier.gro","3142127"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13708"],["dc.language.iso","en"],["dc.notes.intern","lifescience updates Crossref Import"],["dc.notes.status","final"],["dc.relation.doi","10.1021/nl400313z"],["dc.relation.issn","1530-6984"],["dc.title","Quantum Yield Measurement in a Multicolor Chromophore Solution Using a Nanocavity"],["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"]]