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溶剂热法合成水溶性B-PEI/NaYF_4∶Yb^(3+),Er^(3+)上转换发光纳米粒子 被引量：2

Solvothermal Synthesis of Water Soluble B-PEI/NaYF_4∶Yb^(3+),Er^(3+) Nanoparticles with Upconversion Luminescence
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摘要 以枝状聚乙烯亚胺(Branched polyethylenimine,B-PEI)为表面活性剂,水和二乙二醇作为溶剂,采用溶剂热法合成出尺寸为45 nm左右的水溶性B-PEI/NaYF4∶Yb3+,Er3+纳米粒子。在室温980 nm光激发下,样品显示出较强的上转换发光。样品表面的B-PEI分子中的氨基可以连接生物分子。细胞毒性实验显示样品具有较低的细胞毒性。以上结果可以为上转换发光纳米粒子在生物医学领域的应用提供有益的参考。 Branched polyethylenimine（B-PEI） coated NaYF4∶Yb^3＋,Er^3＋ nanoparticles with size about 45 nm were successfully prepared via a solvothermal method in water and diethylene glycol using B-PEI as surfactant.The strong upconversion luminescence from the sample can be observed under excitation of 980 nm diode laser at room temperature.The amino groups of B-PEI existing on the nanoparticles can be used for attachment of biomolecules.The cell viability experiments show that the samples have lower cell toxicity.The results presented in this study provide a new insight for the upconversion luminescence nanoparticles in the biomedical applications.
作者 赵军伟 单含 石冬梅 赵营刚 孔祥贵
机构地区 中国科学院苏州生物医学工程技术研究所 洛阳理工学院材料科学与工程系 长春理工大学
出处 《发光学报》 EI CAS CSCD 北大核心 2012年第3期253-257,共5页 Chinese Journal of Luminescence
基金 国家自然科学基金(10904142 11004189 11174277) 洛阳理工学院博士科研启动基金(2010BZ08)资助项目
关键词 上转换发光 纳米粒子 水溶性 细胞活性 upconversion luminescence nanoparticles water soluble cell viability
分类号 O482.31 [理学—固体物理]
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参考文献22

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二级参考文献45

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发光学报
2012年 第3期

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