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Investigation the effects of nano golds on the fluorescence properties of the sectorial poly(amidoamine) (PAMAM) dendrimers

机译:研究纳米金对扇形聚(酰胺基胺)(PAMAM)树枝状聚合物的荧光性质的影响

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摘要

The influence of nano golds on fluorescence properties of sectorial Polyamidoamine dendrimers (G4 s-PAMAM) was investigated in this paper. It was found that gold nanoparticles (GNPs) with definite surface plasmon absorption can quench the fluorescence of G4 s-PAMAM dendrimers. With the increasing of the concentration of GNPs, the fluorescence intensity of G4 s-PAMAM decreased correspondingly, and varied linearly at low concentration of GNPs. This phenomenon was owing to the fluorescence resonance energy transfer (FRET) between the dendrimers and GNPs. In contrast, the complex with smaller gold nanodots (GNDs) encapsulated in the interior of the G4 s-PAMAM presented greatly enhanced emission. Those results show that the size of nano golds may be used to adjust the fluorescence properties of sectorial PAMAM dendrimers and may extend potential applications of PAMAM dendrimers and nano golds.
机译:本文研究了纳米金对扇形聚酰胺基胺树枝状大分子(G4 s-PAMAM)荧光性质的影响。发现具有确定的表面等离子体激元吸收的金纳米颗粒(GNP)可以淬灭G4 s-PAMAM树状聚合物的荧光。随着GNPs浓度的增加,G4 s-PAMAM的荧光强度相应降低,并在低浓度的GNPs下线性变化。这种现象是由于树枝状大分子和GNP之间的荧光共振能量转移(FRET)。相比之下,在G4 s-PAMAM内部封装的具有较小金纳米点(GND)的复合物则大大增强了发射。这些结果表明,纳米金的尺寸可用于调节扇形PAMAM树枝状聚合物的荧光特性,并可扩展PAMAM树枝状聚合物和纳米金的潜在应用。

著录项

  • 来源
    《Applied Surface Science》 |2010年第23期|P.7194-7199|共6页
  • 作者单位

    State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China Suzhou Key Laboratory of Environment and Biosafety, Dushu Lake Higher Education Town, Suzhou, 215123, China;

    rnState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China Suzhou Key Laboratory of Environment and Biosafety, Dushu Lake Higher Education Town, Suzhou, 215123, China;

    rnState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China Suzhou Key Laboratory of Environment and Biosafety, Dushu Lake Higher Education Town, Suzhou, 215123, China;

    rnSchool of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210096, China;

    rnState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China Suzhou Key Laboratory of Environment and Biosafety, Dushu Lake Higher Education Town, Suzhou, 215123, China;

    rnState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China Suzhou Key Laboratory of Environment and Biosafety, Dushu Lake Higher Education Town, Suzhou, 215123, China;

    rnState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China Suzhou Key Laboratory of Environment and Biosafety, Dushu Lake Higher Education Town, Suzhou, 215123, China School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210096, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PAMAM; fluorescence; nano golds;

    机译:PAMAM;荧光纳米金;

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