Calentamiento de nanopartículas de oro inducido por excitación fotónica y multifotónica

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Flonth Viena Gutierrez-Cruz http://orcid.org/0000-0003-4515-6458
Alejandra Ancira-Cortez http://orcid.org/0000-0001-8772-1078
Miguel Ángel Camacho-López http://orcid.org/0000-0002-3093-3560
Keila Isaac-Olivé http://orcid.org/0000-0003-4388-3811
Nallely Jiménez-Mancilla http://orcid.org/0000-0001-9480-4621

Resumen

Se evalúa la temperatura generada por nanopartículas de oro (AuNPs) al ser irradiadas con luz láser para su utilidad en terapia fototérmica plasmónica fotónica o multifotónica. Las AuNPs fueron sintetizadas por el método de Turkevitch y caracterizadas por técnicas espectroscópicas. La irradiación se realiza con un láser Nd:YAG, a longitudes de onda de 532 y 1 064 nm, frecuencias de repetición 5, 10 y 15 Hz durante 210 s. La temperatura fue medida con un termopar tipo K acoplado a una tarjeta Arduino UNO®. Las AuNPs muestran tamaños de 20.7 + 0.2 nm, forma esférica y un máximo de absorción UV-Vis en 520.16 + 0.93 nm. La irradiación a 1 064 nm exhibe mayor incremento de temperatura en 3.4, 1.9, y 1.2 veces más que a 532 nm a las respectivas frecuencias.

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Como citar
GUTIERREZ-CRUZ, Flonth Viena et al. Calentamiento de nanopartículas de oro inducido por excitación fotónica y multifotónica. CIENCIA ergo-sum, [S.l.], v. 30, n. 2, mayo 2023. ISSN 2395-8782. Disponible en: <https://cienciaergosum.uaemex.mx/article/view/15908>. Fecha de acceso: 04 sep. 2026 doi: https://doi.org/10.30878/ces.v30n2a6.
Sección
Ciencias de la salud humana

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