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  5. Synthesis of Core/Shell Structured NaYF4: Yb,Er@NaYF4 Nanoparticles and Application for Protease Sen

Synthesis of Core/Shell Structured NaYF4: Yb,Er@NaYF4 Nanoparticles and Application for Protease Sen

来源 :International Conference on Nanoscience & Technology,China 2 | 被引量 : 0次 | 上传用户：yingzhao1121
【摘 要】
：
Through an ordinary pyrolysis at 300 ℃,hexagonal-phase NaYF4∶Yb, Er (Y∶Yb∶Er=80∶18∶2 mol%) up-conversion nanoparticles (UCNPs) with strong green emission under 980 nm near infrared (NIR) excitation we
【作 者】
：
Liangjun Zhou Zhanjun Gu Zhongbo Hu Yuliang Zhao 
【机 构】
：
Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety,Institute of High Energy Physi
【出 处】
：
International Conference on Nanoscience & Technology,China 2
【发表日期】
：
2013年3期
【关键词】
：
pyrolysis core/shell up-conversion rhodanmine B protease sensor fluorescence res 
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　　Through an ordinary pyrolysis at 300 ℃,hexagonal-phase NaYF4∶Yb, Er (Y∶Yb∶Er=80∶18∶2 mol%) up-conversion nanoparticles (UCNPs) with strong green emission under 980 nm near infrared (NIR) excitation were obtained.To further enhance the emission and reduce quenching caused by solution, NaYF4∶Yb, Er@NaYF4 core/shell structure nanoparticles (NPs) with 9 times stronger green emission were made.The water dispersibility of these NPs was much improved after being coated with DMSA.
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