RT Journal Article
T1 Light-to-Heat Conversion of Optically Trapped Hot Brownian Particles
A1 Ortiz Rivero, Elisa
A1 Orozco Barrera, Sergio
A1 Chatterjee, Hirak
A1 Caro, Carlos
A1 González Gómez, Carlos David
A1 García Martín, María Luisa
A1 Haro González, Patricia
A1 Rica, Raúl A.
A1 Gámez Márquez, Francisco De Asis
AB Anisotropic hybrid nanostructures stand out as promising therapeutic agents in photothermal conversion-based treatments. Accordingly, understanding local heat generation mediated by light-to-heat conversion of absorbing multicomponent nanoparticles at the single-particle level has forthwith become a subject of broad and current interest. Nonetheless, evaluating reliable temperature profiles around a single trapped nanoparticle is challenging from all of the experimental, computational, and fundamental viewpoints. Committed to filling this gap, the heat generation of an anisotropic hybrid nanostructure is explored by means of two different experimental approaches from which the local temperature is measured in a direct or indirect way, all in the context of hot Brownian motion theory. The results were compared with analytical results supported by the numerical computation of the wavelength-dependent absorption efficiencies in the discrete dipole approximation for scattering calculations, which has been extended to inhomogeneous nanostructures. Overall, we provide a consistent and comprehensive view of the heat generation in optical traps of highly absorbing particles from the viewpoint of the hot Brownian motion theory.
PB ACS
SN 1936-0851
YR 2023
FD 2023-12-04
LK https://hdl.handle.net/20.500.14352/105857
UL https://hdl.handle.net/20.500.14352/105857
LA eng
NO Ortiz-Rivero, E.; Orozco-Barrera, S.; Chatterjee, H.; González-Gómez, C. D.; Caro, C.; García-Martín, M.-L.; González, P. H.; Rica, R. A.; Gámez, F. Light-to-Heat Conversion of Optically Trapped Hot Brownian Particles. ACS Nano 2023, 17 (24), 24961– 24971,  DOI: 10.1021/acsnano.3c07086
NO Ministerio de Ciencia e Innovacion (España)
NO Ministerio de Economía, Industria y Competitividad (España)
DS Docta Complutense
RD 28 jul 2024