Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)

The reversible modulation of the emission of CdSe/ZnS semiconductor nanocrystals (quantum dots) was achieved by binding photochromic diheteroarylethenes and switchable acceptors for fluorescence resonance energy transfer. A biotinylated diheteroarylethene derivative was bound to quantum dots bearing...

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Autores principales:	Jares, Elizabeth Andrea, Giordano, Luciana, Spagnuolo, Carla Cecilia
Publicado:	2005
Materias:	Energy transfer Fluorescence Imaging techniques Nanostructured materials Photochromism Resonance Conjugated streptavidin Diheteroarylethene derivatives Photochromic fluorescence resonance energy transfer (pcFRET) Semiconductor nanocrystals Semiconductor quantum dots
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15421406_v430_n_p257_JaresErijman http://hdl.handle.net/20.500.12110/paper_15421406_v430_n_p257_JaresErijman
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15421406_v430_n_p257_JaresErijman
record_format	dspace
spelling	paper:paper_15421406_v430_n_p257_JaresErijman2023-06-08T16:21:07Z Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET) Jares, Elizabeth Andrea Giordano, Luciana Spagnuolo, Carla Cecilia Energy transfer Fluorescence Imaging techniques Nanostructured materials Photochromism Resonance Conjugated streptavidin Diheteroarylethene derivatives Photochromic fluorescence resonance energy transfer (pcFRET) Semiconductor nanocrystals Semiconductor quantum dots The reversible modulation of the emission of CdSe/ZnS semiconductor nanocrystals (quantum dots) was achieved by binding photochromic diheteroarylethenes and switchable acceptors for fluorescence resonance energy transfer. A biotinylated diheteroarylethene derivative was bound to quantum dots bearing conjugated streptavidin, leading to an intensity decrease as a consequence of energy transfer to the closed form of the acceptor. Interconversion between the open and closed forms by irradiation with 365 and 546 nm light enabled deactivation and activation, respectively, of the FRET process with a corresponding modulation of quantum dot emission, observed both in solution and by sequential wide-field imaging. Fil:Jares-Erijman, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Giordano, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Spagnuolo, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15421406_v430_n_p257_JaresErijman http://hdl.handle.net/20.500.12110/paper_15421406_v430_n_p257_JaresErijman
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Energy transfer Fluorescence Imaging techniques Nanostructured materials Photochromism Resonance Conjugated streptavidin Diheteroarylethene derivatives Photochromic fluorescence resonance energy transfer (pcFRET) Semiconductor nanocrystals Semiconductor quantum dots
spellingShingle	Energy transfer Fluorescence Imaging techniques Nanostructured materials Photochromism Resonance Conjugated streptavidin Diheteroarylethene derivatives Photochromic fluorescence resonance energy transfer (pcFRET) Semiconductor nanocrystals Semiconductor quantum dots Jares, Elizabeth Andrea Giordano, Luciana Spagnuolo, Carla Cecilia Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)
topic_facet	Energy transfer Fluorescence Imaging techniques Nanostructured materials Photochromism Resonance Conjugated streptavidin Diheteroarylethene derivatives Photochromic fluorescence resonance energy transfer (pcFRET) Semiconductor nanocrystals Semiconductor quantum dots
description	The reversible modulation of the emission of CdSe/ZnS semiconductor nanocrystals (quantum dots) was achieved by binding photochromic diheteroarylethenes and switchable acceptors for fluorescence resonance energy transfer. A biotinylated diheteroarylethene derivative was bound to quantum dots bearing conjugated streptavidin, leading to an intensity decrease as a consequence of energy transfer to the closed form of the acceptor. Interconversion between the open and closed forms by irradiation with 365 and 546 nm light enabled deactivation and activation, respectively, of the FRET process with a corresponding modulation of quantum dot emission, observed both in solution and by sequential wide-field imaging.
author	Jares, Elizabeth Andrea Giordano, Luciana Spagnuolo, Carla Cecilia
author_facet	Jares, Elizabeth Andrea Giordano, Luciana Spagnuolo, Carla Cecilia
author_sort	Jares, Elizabeth Andrea
title	Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)
title_short	Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)
title_full	Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)
title_fullStr	Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)
title_full_unstemmed	Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)
title_sort	imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcfret)
publishDate	2005
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15421406_v430_n_p257_JaresErijman http://hdl.handle.net/20.500.12110/paper_15421406_v430_n_p257_JaresErijman
work_keys_str_mv	AT jareselizabethandrea imagingquantumdotsswitchedonandoffbyphotochromicfluorescenceresonanceenergytransferpcfret AT giordanoluciana imagingquantumdotsswitchedonandoffbyphotochromicfluorescenceresonanceenergytransferpcfret AT spagnuolocarlacecilia imagingquantumdotsswitchedonandoffbyphotochromicfluorescenceresonanceenergytransferpcfret
_version_	1768546508695666688

Imaging quantum dots switched on and off by photochromic fluorescence resonance energy transfer (pcFRET)

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