A temperature self-monitoring NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell photothermal converter for photothermal therapy application

Yunci Li; Baojiu Chen; Lili Tong; Xizhen Zhang; Sai Xu; Xiangping Li; Jinsu Zhang; Jiashi Sun; Xin Wang; Yanqiu Zhang; Guozhu Sui; Yuhang Zhang; Xiangqing Zhang; Haiping Xia

Results in Physics (Dec 2019)

A temperature self-monitoring NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell photothermal converter for photothermal therapy application

Yunci Li,
Baojiu Chen,
Lili Tong,
Xizhen Zhang,
Sai Xu,
Xiangping Li,
Jinsu Zhang,
Jiashi Sun,
Xin Wang,
Yanqiu Zhang,
Guozhu Sui,
Yuhang Zhang,
Xiangqing Zhang,
Haiping Xia

Affiliations

Yunci Li: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Baojiu Chen: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China; Corresponding author.
Lili Tong: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Xizhen Zhang: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Sai Xu: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Xiangping Li: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Jinsu Zhang: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Jiashi Sun: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Xin Wang: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Yanqiu Zhang: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Guozhu Sui: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Yuhang Zhang: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Xiangqing Zhang: Department of Physics, Dalian Maritime University, Dalian 116026, People’s Republic of China
Haiping Xia: Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, People’s Republic of China

Journal volume & issue: Vol. 15

Abstract

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For developing novel photothermal converting agent with temperature self-reading-out function in photothermal therapy, NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell nanostructure was designed and prepared via a thermal decomposition technique. The temperature sensing, fluorescence temperature quenching and photothermal conversion properties were investigated. The measurement of fluorescence intensity ratios (FIRs) indicated that the NaYF4:Er3+/Yb3+ shell has a good performance in temperature sensing. Meanwhile, it was also confirmed that the temperature quenching of Er3+ green fluorescence was mainly induced by the increasing nonradiative transition probability of 4S3/2 state with elevating sample temperature. Furthermore, the photothermal conversion was studied based on the experimentally confirmed temperature sensing of the shell structure. It was proved that the core-shell nanoparticles can effectively convert the excitation luminous energy into heat energy. All the results indicated that the designed nanoparticles might be an excellent photothermal converter with optical temperature sensing for promising application in photothermal therapy. Keywords: Core-shell structure, Photothermal conversion, Optical temperature sensing, Fluorescence temperature quenching

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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