| Autor: |
Kolesnikov IE; St. Petersburg State University, 7/9 Universitetskaya nab., 199034, St. Petersburg, Russia. Lappeenranta University of Technology LUT, Skinnarilankatu 34, 53850, Lappeenranta, Finland., Kalinichev AA, Kurochkin MA, Mamonova DV, Kolesnikov EY, Lähderanta E, Mikhailov MD |
| Jazyk: |
angličtina |
| Zdroj: |
Nanotechnology [Nanotechnology] 2019 Apr 05; Vol. 30 (14), pp. 145501. Date of Electronic Publication: 2019 Jan 09. |
| DOI: |
10.1088/1361-6528/aafcb8 |
| Abstrakt: |
Achieving a combination of real-time diagnosis and therapy in a single platform with sensitive thermometry and efficient heat production is a crucial step towards controllable photothermal therapy. Here, Nd 3+ -doped Y 2 O 3 nanoparticles prepared using the combined Pechini-foaming technique operating in the first and second biological windows were demonstrated as thermal sensors within the wide temperature range of 123-873 K, and as heaters with a temperature increase of 100 K. Thermal sensing was performed based on various approaches: luminescence intensity ratio (electronic levels; Stark sublevels), spectral line position and line bandwidth were used as temperature-dependent parameters. The applicability of these sensing parameters, along with relative thermal sensitivity and temperature resolution, are discussed and compared. The influence of Nd 3+ -doping concentration on thermometer and heater efficiency was also investigated. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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