Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces

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The stochastic dynamics of individual co-doped Er:Yb upconversion nanoparticles (UCNP) were investigated from experiments and simulations. TheUCNPwere characterized by high-resolution scanning electron microscopy, dynamic light scattering, and zeta potential measurements. Single UCNPmeasurements wer...

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Autores principales: Nome, R.A., Sorbello, C., Jobbágy, M., Barja, B.C., Sanches, V., Cruz, J.S., Aguiar, V.F.
Formato: JOUR
Materias:
Microscopy
Stochastic dynamics
Upconversion nanoparticles
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_20506120_v5_n1_p_Nome
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_20506120_v5_n1_p_Nome
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spelling todo:paper_20506120_v5_n1_p_Nome2023-10-03T16:38:46Z Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces Nome, R.A. Sorbello, C. Jobbágy, M. Barja, B.C. Sanches, V. Cruz, J.S. Aguiar, V.F. Microscopy Stochastic dynamics Upconversion nanoparticles The stochastic dynamics of individual co-doped Er:Yb upconversion nanoparticles (UCNP) were investigated from experiments and simulations. TheUCNPwere characterized by high-resolution scanning electron microscopy, dynamic light scattering, and zeta potential measurements. Single UCNPmeasurements were performed by fluorescence upconversion micro-spectroscopy and optical trapping. The mean-square displacement (MSD) from singleUCNPexhibited a time-dependent diffusion coefficient which was compared with Brownian dynamics simulations of a viscoelastic model of harmonically bound spheres. Experimental time-dependent two-dimensional trajectories of individualUCNPrevealed correlated two-dimensional nanoparticle motion. The measurements were compared with stochastic trajectories calculated in the presence of a non-conservative rotational force field. Overall, the complex interplay ofUCNPadhesion, thermal fluctuations and optical forces led to a rich stochastic behavior of these nanoparticles. ©2017 IOP Publishing Ltd. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_20506120_v5_n1_p_Nome
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Microscopy
Stochastic dynamics
Upconversion nanoparticles
spellingShingle Microscopy
Stochastic dynamics
Upconversion nanoparticles
Nome, R.A.
Sorbello, C.
Jobbágy, M.
Barja, B.C.
Sanches, V.
Cruz, J.S.
Aguiar, V.F.
Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
topic_facet Microscopy
Stochastic dynamics
Upconversion nanoparticles
description The stochastic dynamics of individual co-doped Er:Yb upconversion nanoparticles (UCNP) were investigated from experiments and simulations. TheUCNPwere characterized by high-resolution scanning electron microscopy, dynamic light scattering, and zeta potential measurements. Single UCNPmeasurements were performed by fluorescence upconversion micro-spectroscopy and optical trapping. The mean-square displacement (MSD) from singleUCNPexhibited a time-dependent diffusion coefficient which was compared with Brownian dynamics simulations of a viscoelastic model of harmonically bound spheres. Experimental time-dependent two-dimensional trajectories of individualUCNPrevealed correlated two-dimensional nanoparticle motion. The measurements were compared with stochastic trajectories calculated in the presence of a non-conservative rotational force field. Overall, the complex interplay ofUCNPadhesion, thermal fluctuations and optical forces led to a rich stochastic behavior of these nanoparticles. ©2017 IOP Publishing Ltd.
format JOUR
author Nome, R.A.
Sorbello, C.
Jobbágy, M.
Barja, B.C.
Sanches, V.
Cruz, J.S.
Aguiar, V.F.
author_facet Nome, R.A.
Sorbello, C.
Jobbágy, M.
Barja, B.C.
Sanches, V.
Cruz, J.S.
Aguiar, V.F.
author_sort Nome, R.A.
title Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
title_short Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
title_full Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
title_fullStr Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
title_full_unstemmed Rich stochastic dynamics of co-doped Er:Yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
title_sort rich stochastic dynamics of co-doped er:yb fluorescence upconversion nanoparticles in the presence of thermal, nonconservative, harmonic and optical forces
url http://hdl.handle.net/20.500.12110/paper_20506120_v5_n1_p_Nome
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