Comparative Study of Photothermal Conversion Efficiency in Aqueous Suspensions of Silicon and Titanium Nitride Nanoparticles for Biomedical Applications
A. A. Bubnov, A. V. Syui, A. A. Popov, G. V. Tikhonovskii, N. S. Pokryshkin, V. Yu. Timoshenko
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Abstract
The paper presents the results of experiments on studying laser-stimulated heating in the near-infrared region of the spectrum of aqueous suspensions of nanoparticles (NPs) based on silicon (Si and Si–Fe NPs) and titanium nitride (TiN NPs) by a continuous laser with a wavelength of 808 nm and a power of 0.36 mW. Temperature profiles were obtained, and the heating rate and photothermal conversion efficiency were determined for each sample at a concentration of 1 mg/mL. The conversion efficiencies for the studied aqueous suspensions of TiN, Si–Fe, and Si NPs were 90, 36 and 10%, respectively. The results obtained show that TiN and Si–Fe NPs can be used as photoagents to control local photohyperthermia in biomedicine.
期刊介绍：
Physics of Atomic Nuclei is a journal that covers experimental and theoretical studies of nuclear physics: nuclear structure, spectra, and properties; radiation, fission, and nuclear reactions induced by photons, leptons, hadrons, and nuclei; fundamental interactions and symmetries; hadrons (with light, strange, charm, and bottom quarks); particle collisions at high and superhigh energies; gauge and unified quantum field theories, quark models, supersymmetry and supergravity, astrophysics and cosmology.
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