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dc.contributor.author Diaz, Sebastian Andres
dc.contributor.author Gillanders, Florencia
dc.contributor.author Jares, Elizabeth Andrea
dc.contributor.author Jovin, Thomas M.
dc.date.available 2018-03-26T18:17:27Z
dc.date.issued 2015-01
dc.identifier.citation Diaz, Sebastian Andres; Gillanders, Florencia; Jares, Elizabeth Andrea; Jovin, Thomas M.; Photoswitchable semiconductor nanocrystals with self-regulating photochromic Förster resonance energy transfer acceptors; Nature Publishing Group; Nature Communications; 6; 1-2015; 1-11
dc.identifier.issn 2041-1723
dc.identifier.uri http://hdl.handle.net/11336/39941
dc.description.abstract Photoswitchable molecules and nanoparticles constitute superior biosensors for a wide range of industrial, research and biomedical applications. Rendered reversible by spontaneous or deterministic means, such probes facilitate many of the techniques in fluorescence microscopy that surpass the optical resolution dictated by diffraction. Here we have devised a family of photoswitchable quantum dots (psQDs) in which the semiconductor core functions as a fluorescence donor in Förster resonance energy transfer (FRET), and multiple photochromic diheteroarylethene groups function as acceptors upon activation by ultraviolet light. The QDs were coated with a polymer bearing photochromic groups attached via linkers of different length. Despite the resulting nominal differences in donor-acceptor separation and anticipated FRET efficiencies, the maximum quenching of all psQD preparations was 38±2%. This result was attributable to the large ultraviolet absorption cross-section of the QDs, leading to preferential cycloreversion of photochromic groups situated closer to the nanoparticle surface and/or with a more favourable orientation.
dc.format application/pdf
dc.language.iso eng
dc.publisher Nature Publishing Group
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Physical Sciences
dc.subject Nanotechnology
dc.subject Optical Physics
dc.subject Physical Chemistry
dc.subject.classification Otras Ciencias Químicas
dc.subject.classification Ciencias Químicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Photoswitchable semiconductor nanocrystals with self-regulating photochromic Förster resonance energy transfer acceptors
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-03-02T14:02:34Z
dc.journal.volume 6
dc.journal.pagination 1-11
dc.journal.pais Estados Unidos
dc.description.fil Fil: Diaz, Sebastian Andres. Max Planck Institute for Biophysical Chemistry; Alemania
dc.description.fil Fil: Gillanders, Florencia. Max Planck Institute for Biophysical Chemistry; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
dc.description.fil Fil: Jares, Elizabeth Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
dc.description.fil Fil: Jovin, Thomas M.. Max Planck Institute for Biophysical Chemistry; Alemania
dc.journal.title Nature Communications
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/ncomms7036
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/ncomms7036
dc.conicet.fuente individual


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    Articulos de CENTRO DE INVESTIGACIONES EN BIONANOCIENCIAS "ELIZABETH JARES ERIJMAN"

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)