Science China Materials

, Volume 61, Issue 3, pp 401–408 | Cite as

Au nanoparticle@silica@europium coordination polymer nanocomposites for enhanced fluorescence and more sensitive monitoring reactive oxygen species

  • Huiqin Li (李慧勤)
  • Jianhui Yang (杨建辉)
  • Qingqing Deng (邓青青)
  • Shumei Dou (窦树梅)
  • Weiwei Zhao (赵微微)
  • Chong Lin (林冲)
  • Xiaofang Liu (刘晓芳)


Au nanoparticle (Au NP)@SiO2@TDA-Eu nanocomposites were prepared by a two-step process: Au NP@SiO2 nanocomposites were prepared by a modified onepot process. Then the europium coordination polymer was deposited on the surface of the Au NP@SiO2 by mixing 2,2’-thiodiacetic acid [S(CH2COO)22-, TDA] and Eu(NO3)3·6H2O in ethanol via a hydrothermal method. The maximum fluorescent enhancement factor of the nanocomposites was 6.81 at 30 nm thickness of silica between the core of the Au NP and the shell of TDA-Eu. The prepared nanocomposites exhibit more sensitive monitoring of reactive oxygen species.


nanocomposites fluorescence enhancement silica coordination polymers reactive oxygen species 



本论文通过两步工艺成功合成了Au NP@SiO2@TDA-Eu复合纳米材料:采用改进的一锅法制备了纳米复合材料Au NP@SiO2,然后 利用水热法, 在无水乙醇中通过亚硫基二乙酸[S(CH2COO)22-, TDA]和EUNO3)3·6H2O反应, 生成铕的配位聚合物, 并将其沉积在Au NP@SiO2的表面合成复合纳米材料Au NP@SiO2@TDA-Eu.该复合材料在二氧化硅层厚度为30 nm时, 荧光增强最大, 增强因子为6.81,在 对活性氧的检测中,表现出高灵敏度.



This work was financially supported by the National Natural Science Foundation of China (51702006 and 21501141), the Doctoral research project (ZK2017027) of Baoji University of Arts and Sciences, and the Education Commission of Shaanxi Province (2015JQ6223, 12JS114, 14JS092 and 17JS009).

Supplementary material

40843_2017_9127_MOESM1_ESM.pdf (303 kb)
Au nanoparticle@silica@europium coordination polymer nanocomposites for enhanced fluorescence and more sensitive monitoring reactive oxygen species


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  • Huiqin Li (李慧勤)
    • 1
  • Jianhui Yang (杨建辉)
    • 2
  • Qingqing Deng (邓青青)
    • 2
  • Shumei Dou (窦树梅)
    • 1
  • Weiwei Zhao (赵微微)
    • 1
  • Chong Lin (林冲)
    • 2
  • Xiaofang Liu (刘晓芳)
    • 2
  1. 1.Department of Chemistry and Chemical EngineeringBaoji University of Arts and Sciences, Shaanxi Key Laboratory of phytochemistryBaojiChina
  2. 2.Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials ScienceNorthwest UniversityXi’anChina

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