Results 21 to 30 of about 33,358 (267)

Photo- and Radiofrequency-Induced Heating of Photoluminescent Colloidal Carbon Dots

open access: yesNanomaterials, 2022
Nitrogen- and oxygen-containing carbon nanoparticles (O, N-CDs) were prepared by a facile one-step solvothermal method using urea and citric acid precursors.
Gauhar Mussabek   +11 more
doaj   +1 more source

Numerical Study of Photoacoustic Pressure for Cancer Therapy

open access: yesApplied Sciences, 2016
A commonly used therapy for cancer is based on the necrosis of cells induced by heating through the illumination of nanoparticles embedded in cells. Recently, the photoacoustic pressure shock induced by the illumination pulse was proved and this points ...
Thomas Grosges, Dominique Barchiesi
doaj   +1 more source

Photothermal effects in fiber Bragg gratings

open access: yesApplied Optics, 2006
Writing a fiber Bragg grating in optical fiber generates an intrinsic broadband absorption term that can result in photothermal heating during subsequent use with fiber core guided light. This, in turn, can cause a significant shift of a grating resonance via the thermo-optic coefficient, even at low in-fiber light powers.
Littler, I, Grujic, T, Eggleton, B
openaire   +3 more sources

Gold Nanoparticles as a Photothermal Agent in Cancer Therapy: The Thermal Ablation Characteristic Length

open access: yesMolecules, 2018
In cancer therapy, the thermal ablation of diseased cells by embedded nanoparticles is one of the known therapies. It is based on the absorption of the energy of the illuminating laser by nanoparticles.
Thomas Grosges, Dominique Barchiesi
doaj   +1 more source

Ultracompact on-chip photothermal power monitor based on silicon hybrid plasmonic waveguides

open access: yesNanophotonics, 2017
We propose and demonstrate an ultracompact on-chip photothermal power monitor based on a silicon hybrid plasmonic waveguide (HPWG), which consists of a metal strip, a silicon core, and a silicon oxide (SiO2) insulator layer between them.
Wu Hao   +4 more
doaj   +1 more source

Investigation of photothermal effect in nanomaterials

open access: yesJournal of Physics: Conference Series, 2020
Abstract The thermal emission dependence on various nanostructural materials absorption of electromagnetic irradiation was investigated. Nanomaterials containing Au and Ag nanoparticles, and CuO nanorods have been studied by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy. These nanomaterials were
I Stępińska   +5 more
openaire   +1 more source

Micelle-encapsulated IR783 for enhanced photothermal therapy in mouse breast cancer

open access: yesPhotodiagnosis and Photodynamic Therapy
Background: Photothermal therapy, an emerging cancer treatment, selectively eliminates lesions using photothermal compounds that convert light into heat.
Tomohiro Osaki   +3 more
doaj   +1 more source

Laser Induced Aggregation of Light Absorbing Particles by Marangoni Convection

open access: yesApplied Sciences, 2020
Laser induced Marangoni convection can be used to accumulate micro-particles. In this paper, a method is developed to control and accumulate the light absorbing particles dispersed in a thin solution layer. The particles are irradiated by a focused laser
Bo-Wei Li, Min-Cheng Zhong, Feng Ji
doaj   +1 more source

Photothermal Effect in Plasmonic Nanotip for LSPR Sensing [PDF]

open access: yesSensors, 2020
The influence of heat generation on the conventional process of LSPR based sensing has not been explored thus far. Therefore, a need exists to draw attention toward the heat generation issue during LSPR sensing as it may affect the refractive index of the analyte, leading to incorrect sensory conclusions.
Muhammad Shemyal Nisar   +2 more
openaire   +4 more sources

Interstitial photoacoustic technique and computational simulation for temperature distribution and tissue optical properties in interstitial laser photothermal interaction [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2018
Interstitial laser immunotherapy (ILIT) is designed to use photothermal and immunological interactions for treatment of metastatic cancers. The photothermal effect is crucial in inducing anti-tumor immune responses in the host.
Zhifang Li   +4 more
doaj   +1 more source

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