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Enhanced Red Emission from GdF3:Yb3+,Er3+ Upconversion Nanocrystals by Li+ Doping and Their Application for Bioimaging
Yin WY(尹文艳); Zhao LN(赵丽娜); Zhou LJ(周亮君); Yin, WY; Zhao, LN; Zhou, LJ; Gu, ZJ; Liu, XX; Tian, G; Jin, S; Yan, L; Ren, WL; Xing, GM; Zhao, YL; Gu ZJ(谷战军); Liu XX(刘潇潇); Tian G(田甘); Jin S(金珊); Yan L(晏亮); Ren WL(任文璐); Xing GM(邢更妹); Zhao YL(赵宇亮)
2012
发表期刊CHEMISTRY-A EUROPEAN JOURNAL
卷号18期号:30页码:9239-9245
摘要Under 980 nm near-infrared (NIR) excitation, upconversion luminescent (UCL) emission of GdF3:Yb,Er upconversion nanoparticles (UCNPs) synthesized by a simple and green hydrothermal process can be tuned from yellow to red by varying the concentration of dopant Li+ ions. A possible mechanism for enhanced red upconverted radiation is proposed. A layer of silica was coated onto the surface of GdF3:Yb,Er,Li UCNPs to improve their biocompatibility. The silica-coated GdF3:Yb,Er,Li UCNPs show great advantages in cell labeling and in vivo optical imaging. Moreover, GdF3 UCNPs also exhibited a positive contrast effect in T1-weighted magnetic resonance imaging (MRI). These results suggest that the GdF3 UCNPs could act as dual-modality biolabels for optical imaging and MRI.
关键词doping fluorescent probes hydrothermal synthesis imaging agents nanoparticles
学科领域Chemistry
DOI10.1002/chem.201201053
收录类别SCI
WOS记录号WOS:000306403200015
引用统计
被引频次:98[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224316
专题多学科研究中心
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GB/T 7714
Yin WY,Zhao LN,Zhou LJ,et al. Enhanced Red Emission from GdF3:Yb3+,Er3+ Upconversion Nanocrystals by Li+ Doping and Their Application for Bioimaging[J]. CHEMISTRY-A EUROPEAN JOURNAL,2012,18(30):9239-9245.
APA 尹文艳.,赵丽娜.,周亮君.,Yin, WY.,Zhao, LN.,...&赵宇亮.(2012).Enhanced Red Emission from GdF3:Yb3+,Er3+ Upconversion Nanocrystals by Li+ Doping and Their Application for Bioimaging.CHEMISTRY-A EUROPEAN JOURNAL,18(30),9239-9245.
MLA 尹文艳,et al."Enhanced Red Emission from GdF3:Yb3+,Er3+ Upconversion Nanocrystals by Li+ Doping and Their Application for Bioimaging".CHEMISTRY-A EUROPEAN JOURNAL 18.30(2012):9239-9245.
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