Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating

Autores
Diaz, Sebastian Andres; Menéndez, Guillermo Oscar; Etchehon, Maria Herminia; Giordano, Luciana; Jovin, Thomas M.; Jares, Elizabeth Andrea
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A novel surface architecture was developed to generate biocompatible and stable photoswitchable quantum dots (psQDs). Photochromic diheteroarylethenes, which undergo thermally stable photoconversions between two forms with different spectral properties in organic solvents, were covalently linked to an amphiphilic polymer that self-assembles with the lipophilic chains surrounding commercial hydrophobic core-shell CdSe/ZnS QDs. This strategy creates a small (∼7 nm diameter) nanoparticle (NP) that is soluble in aqueous medium. The NP retains and even enhances the desirable properties of the original QD (broad excitation, narrow emission, photostability), but the brightness of its emission can be tailored by light. The modulation of emission monitored by steady-state and time-resolved fluorescence was 35-40%. The psQDs exhibit unprecedented photostability and fatigue resistance over at least 16 cycles of photoconversion.
Fil: Diaz, Sebastian Andres. 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
Fil: Menéndez, Guillermo Oscar. 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
Fil: Etchehon, Maria Herminia. 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
Fil: Giordano, Luciana. Max Planck Institute for Biophysical Chemistry; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Jovin, Thomas M.. Max Planck Institute for Biophysical Chemistry; Alemania
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
Materia
Amphiphilic Polymer
Fret
Nanoparticle Coating
Photochromism
Quantum Dots
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68753
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68753
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coatingDiaz, Sebastian AndresMenéndez, Guillermo OscarEtchehon, Maria HerminiaGiordano, LucianaJovin, Thomas M.Jares, Elizabeth AndreaAmphiphilic PolymerFretNanoparticle CoatingPhotochromismQuantum Dotshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A novel surface architecture was developed to generate biocompatible and stable photoswitchable quantum dots (psQDs). Photochromic diheteroarylethenes, which undergo thermally stable photoconversions between two forms with different spectral properties in organic solvents, were covalently linked to an amphiphilic polymer that self-assembles with the lipophilic chains surrounding commercial hydrophobic core-shell CdSe/ZnS QDs. This strategy creates a small (∼7 nm diameter) nanoparticle (NP) that is soluble in aqueous medium. The NP retains and even enhances the desirable properties of the original QD (broad excitation, narrow emission, photostability), but the brightness of its emission can be tailored by light. The modulation of emission monitored by steady-state and time-resolved fluorescence was 35-40%. The psQDs exhibit unprecedented photostability and fatigue resistance over at least 16 cycles of photoconversion.Fil: Diaz, Sebastian Andres. 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; ArgentinaFil: Menéndez, Guillermo Oscar. 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; ArgentinaFil: Etchehon, Maria Herminia. 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; ArgentinaFil: Giordano, Luciana. Max Planck Institute for Biophysical Chemistry; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Jovin, Thomas M.. Max Planck Institute for Biophysical Chemistry; AlemaniaFil: 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; ArgentinaAmerican Chemical Society2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68753Diaz, Sebastian Andres; Menéndez, Guillermo Oscar; Etchehon, Maria Herminia; Giordano, Luciana; Jovin, Thomas M.; et al.; Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating; American Chemical Society; ACS Nano; 5; 4; 4-2011; 2795-28051936-0851CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/nn103243cinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/nn103243cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:14Zoai:ri.conicet.gov.ar:11336/68753instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:59:14.932CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
title Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
spellingShingle Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
Diaz, Sebastian Andres
Amphiphilic Polymer
Fret
Nanoparticle Coating
Photochromism
Quantum Dots
title_short Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
title_full Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
title_fullStr Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
title_full_unstemmed Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
title_sort Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating
dc.creator.none.fl_str_mv Diaz, Sebastian Andres
Menéndez, Guillermo Oscar
Etchehon, Maria Herminia
Giordano, Luciana
Jovin, Thomas M.
Jares, Elizabeth Andrea
author Diaz, Sebastian Andres
author_facet Diaz, Sebastian Andres
Menéndez, Guillermo Oscar
Etchehon, Maria Herminia
Giordano, Luciana
Jovin, Thomas M.
Jares, Elizabeth Andrea
author_role author
author2 Menéndez, Guillermo Oscar
Etchehon, Maria Herminia
Giordano, Luciana
Jovin, Thomas M.
Jares, Elizabeth Andrea
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Amphiphilic Polymer
Fret
Nanoparticle Coating
Photochromism
Quantum Dots
topic Amphiphilic Polymer
Fret
Nanoparticle Coating
Photochromism
Quantum Dots
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A novel surface architecture was developed to generate biocompatible and stable photoswitchable quantum dots (psQDs). Photochromic diheteroarylethenes, which undergo thermally stable photoconversions between two forms with different spectral properties in organic solvents, were covalently linked to an amphiphilic polymer that self-assembles with the lipophilic chains surrounding commercial hydrophobic core-shell CdSe/ZnS QDs. This strategy creates a small (∼7 nm diameter) nanoparticle (NP) that is soluble in aqueous medium. The NP retains and even enhances the desirable properties of the original QD (broad excitation, narrow emission, photostability), but the brightness of its emission can be tailored by light. The modulation of emission monitored by steady-state and time-resolved fluorescence was 35-40%. The psQDs exhibit unprecedented photostability and fatigue resistance over at least 16 cycles of photoconversion.
Fil: Diaz, Sebastian Andres. 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
Fil: Menéndez, Guillermo Oscar. 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
Fil: Etchehon, Maria Herminia. 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
Fil: Giordano, Luciana. Max Planck Institute for Biophysical Chemistry; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Jovin, Thomas M.. Max Planck Institute for Biophysical Chemistry; Alemania
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
description A novel surface architecture was developed to generate biocompatible and stable photoswitchable quantum dots (psQDs). Photochromic diheteroarylethenes, which undergo thermally stable photoconversions between two forms with different spectral properties in organic solvents, were covalently linked to an amphiphilic polymer that self-assembles with the lipophilic chains surrounding commercial hydrophobic core-shell CdSe/ZnS QDs. This strategy creates a small (∼7 nm diameter) nanoparticle (NP) that is soluble in aqueous medium. The NP retains and even enhances the desirable properties of the original QD (broad excitation, narrow emission, photostability), but the brightness of its emission can be tailored by light. The modulation of emission monitored by steady-state and time-resolved fluorescence was 35-40%. The psQDs exhibit unprecedented photostability and fatigue resistance over at least 16 cycles of photoconversion.
publishDate 2011
dc.date.none.fl_str_mv 2011-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68753
Diaz, Sebastian Andres; Menéndez, Guillermo Oscar; Etchehon, Maria Herminia; Giordano, Luciana; Jovin, Thomas M.; et al.; Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating; American Chemical Society; ACS Nano; 5; 4; 4-2011; 2795-2805
1936-0851
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68753
identifier_str_mv Diaz, Sebastian Andres; Menéndez, Guillermo Oscar; Etchehon, Maria Herminia; Giordano, Luciana; Jovin, Thomas M.; et al.; Photoswitchable water-soluble quantum dots: PcFRET based on amphiphilic photochromic polymer coating; American Chemical Society; ACS Nano; 5; 4; 4-2011; 2795-2805
1936-0851
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/nn103243c
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/nn103243c
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269570133393408
score 13.13397

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