Exploring Single-Nanoparticle Dynamics at High Temperature by Optical Tweezers
authors Lu, DS; Labrador-Paez, L; Ortiz-Rivero, E; Frades, P; Antoniak, MA; Wawrzynczyk, D; Nyk, M; Brites, CDS; Carlos, LD; Sole, JAG; Haro-Gonzalez, P; Jaque, D
nationality International
author keywords nanoparticle velocity; optical tweezers; Brownian motion; single nanoparticle; upconversion; high temperature
abstract The experimental determination of the velocity of a colloidal nanoparticle (v(Np)) has recently became a hot topic. The thermal dependence of v(Np) is still left to be explored although it is a valuable source of information allowing, for instance, the discernment between ballistic and diffusive regimes. Optical tweezers (OTs) constitute a tool especially useful for the experimental determination of v m , although they have only been capable of determining it at room temperature. In this work, we demonstrate that it is possible to determine the temperature dependence of the diffusive velocity of a single colloidal nanoparticle by analyzing the temperature dependence of optical forces. The comparison between experimental results and theoretical predictions allowed us to discover the impact that the anomalous temperature dependence of water properties has on the dynamics of colloidal nanoparticles in this temperature range.
issn 1530-6984
isbn 1530-6992
year published 2020
volume 20
issue 11
beginning page 8024
ending page 8031
digital object identifier (doi) 10.1021/acs.nanolett.0c02936
web of science category Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000592495700030
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journal impact factor 11.238
5 year journal impact factor 12.727
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