Temperature Sensing Properties of Biocompatible Yb/Er-Doped GdF3 and YF3 Mesocrystals

被引：4

作者：

Dinic, Ivana ^{[1
]}

Vukovic, Marina ^{[2
]}

Rabanal, Maria Eugenia ^{[3
,4
]}

Milosevic, Milica ^{[5
]}

Bukumira, Marta ^{[6
]}

Tomic, Nina ^{[1
]}

Tomic, Milos ^{[1
]}

Mancic, Lidija ^{[1
]}

Ignjatovic, Nenad ^{[1
]}

机构：

[1] Inst Tech Sci SASA, Belgrade 110000, Serbia

[2] Univ Belgrade, Fac Chem, Innovat Ctr, Belgrade 110000, Serbia

[3] Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28903, Spain

[4] Univ Carlos III Madrid, IAAB, Madrid 28903, Spain

[5] Univ Belgrade, Vinca Inst Nucl Sci, Natl Inst Republ Serbia, Dept Radiat Chem & Phys, Belgrade 110000, Serbia

[6] Univ Belgrade, Natl Inst Republ Serbia, Inst Phys Belgrade, Belgrade 110000, Serbia

来源：

JOURNAL OF FUNCTIONAL BIOMATERIALS | 2024年 / 15卷 / 01期

关键词：

optical thermometry; up-conversion; YF3; GdF3; chitosan; mesocrystals; cytotoxicity; ONE-STEP SYNTHESIS; UP-CONVERSION; NANOCRYSTALS; NANOPARTICLES; LUMINESCENCE; EMISSION;

D O I：

10.3390/jfb15010006

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Y0.8-xGdxF3:Yb/Er mesocrystals with a biocompatible surface and diverse morphological characteristics were successfully synthesized using chitosan-assisted solvothermal processing. Their structural properties, studied using X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning and transmission electron microscopy and energy dispersive X-ray analysis, were further correlated with the up-conversion emission (lambda(exc) = 976 nm) recorded in function of temperature. Based on the change in the visible green emissions originating from the thermally coupled H-2(11/2) and S-4(3/2) levels of Er3+, the corresponding LIR was acquired in the physiologically relevant range of temperatures (25-50 degrees C). The detected absolute sensitivity of about 0.0042 degrees C-1, along with the low cytotoxicity toward both normal human lung fibroblasts (MRC-5) and cancerous lung epithelial (A549) cells, indicate a potential for use in temperature sensing in biomedicine. Additionally, their enhanced internalization in cells, without suppression of cell viability, enabled in vitro labeling of cancer and healthy cells upon 976 nm laser irradiation.

引用

页数：21

共 46 条

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