Hydrothermal Synthesis of Upconversion Nanoparticles NaYF<sub>4</sub>:Yb,Er and Their Functionalization for Use As Biosensors

E. O. Mityushkin, Д. К. Жарков,A. V. Leontyev,Л. А. Нуртдинова, А. Г. Шмелев, В. Г. Никифоров

Izvestiâ Akademii nauk SSSR Seriâ fizičeskaâ（2023）

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摘要

Using hydrothermal synthesis NaYF4:Yb,Er upconversion nanoparticles in the form of rods were obtained. To give the nanoparticles hydrophilic properties, their surface was modified by replacing the oleate shell with L-cysteine molecules without significant changes in their photophysical properties. Visible fading of the luminescence brightness of the modified upconversion nanoparticles wasn’t observed for months.

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Hydrothermal Synthesis of Upconversion Nanoparticles NaYF&lt;sub&gt;4&lt;/sub&gt;:Yb,Er and Their Functionalization for Use As Biosensors

Hydrothermal Synthesis of Upconversion Nanoparticles NaYF<sub>4</sub>:Yb,Er and Their Functionalization for Use As Biosensors