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dc.contributor.author
Swaminathan, Subramani
dc.contributor.author
Petriella, Marco
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Deniz, Erhan
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Cusido, Janet
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Baker, James D.
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Bossi, Mariano Luis
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Raymo, Françisco M.
dc.date.available
2019-01-09T17:32:41Z
dc.date.issued
2012-10
dc.identifier.citation
Swaminathan, Subramani; Petriella, Marco; Deniz, Erhan; Cusido, Janet; Baker, James D.; et al.; Fluorescence photoactivation by intermolecular proton transfer; American Chemical Society; Journal of Physical Chemistry A; 116; 40; 10-2012; 9928-9933
dc.identifier.issn
1089-5639
dc.identifier.uri
http://hdl.handle.net/11336/67775
dc.description.abstract
We designed a strategy to activate fluorescence under the influence of optical stimulations based on the intermolecular transfer of protons. Specifically, the illumination of a 2-nitrobenzyl derivative at an activating wavelength is accompanied by the release of hydrogen bromide. In turn, the photogenerated acid encourages the opening of an oxazine ring embedded within a halochromic compound. This structural transformation extends the conjugation of an adjacent coumarin fluorophore and enables its absorption at an appropriate excitation wavelength. Indeed, this bimolecular system offers the opportunity to activate fluorescence in liquid solutions, within rigid matrixes and inside micellar assemblies, relying on the interplay of activating and exciting beams. Furthermore, this strategy permits the permanent imprinting of fluorescent patterns on polymer films, the monitoring of proton diffusion within such materials in real time on a millisecond time scale, and the acquisition of images with spatial resolution at the nanometer level. Thus, our operating principles for fluorescence activation can eventually lead to the development of valuable photoswitchable probes for imaging applications and versatile mechanisms for the investigation of proton transport. © 2012 American Chemical Society.
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application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Fluorescence
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Molecular Switching
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Superresolution
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Microscopies
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Fluorescence photoactivation by intermolecular proton transfer
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-02T19:09:28Z
dc.journal.volume
116
dc.journal.number
40
dc.journal.pagination
9928-9933
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Washington
dc.description.fil
Fil: Swaminathan, Subramani. University of Miami; Estados Unidos
dc.description.fil
Fil: Petriella, Marco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
dc.description.fil
Fil: Deniz, Erhan. University of Miami; Estados Unidos
dc.description.fil
Fil: Cusido, Janet. University of Miami; Estados Unidos
dc.description.fil
Fil: Baker, James D.. University of Miami; Estados Unidos
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Fil: Bossi, Mariano Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
dc.description.fil
Fil: Raymo, Françisco M.. University of Miami; Estados Unidos
dc.journal.title
Journal of Physical Chemistry A
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/jp307787w
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1021/jp307787w


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