RT Journal Article
T1 FRET distance dependence from upconverting nanoparticles to quantum dots
A1 Melle Hernández, Sonia
A1 Gómez Calderón, Óscar
A1 Laurenti, Marco
A1 Méndez González, Diego
A1 Egatz-Gómez, Ana
A1 López Cabarcos, Enrique
A1 Cabrera Granado, Eduardo
A1 Díaz García, Elena
A1 Rubio Retama, Jorge
AB Förster resonant energy transfer (FRET) with upconverting nanoparticles (UCNPs) as donors and quantum dots (QDs) as acceptors has been regarded as a promising tool for biosensing applications. In this work, we use time-resolved fluorescence spectroscopy to analyze the UCNP-to-QD FRET and we focus on the most relevant parameter of the FRET phenomenon, UCNP-QD distance. This distance is controlled by a nanometric silica shell around the UCNP surface. We theoretically reproduce the experimental results applying FRET theory to the distribution of emitting erbium ions in the UCNP. This simple model allows us to estimate the contribution of every erbium ion to the final FRET response and to explore different strategies to improve FRET efficiency.
PB Amer Chemical Soc
SN 1932-7447
YR 2018
FD 2018-05
LK https://hdl.handle.net/20.500.14352/12210
UL https://hdl.handle.net/20.500.14352/12210
LA eng
NO Submitted on 25 May 2018
NO Ministerio de Economía y Competitividad de España (MINECO)
NO Comunidad de Madrid
NO Universidad Complutense de Madrid
NO Banco Santander
DS Docta Complutense
RD 4 may 2024