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首页> 外文期刊>Advanced Functional Materials >Encapsulation of Noble Metal Nanoparticles through Seeded Emulsion Polymerization as Highly Stable Plasmonic Systems
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Encapsulation of Noble Metal Nanoparticles through Seeded Emulsion Polymerization as Highly Stable Plasmonic Systems

机译：通过种子乳液聚合将贵金属纳米颗粒包裹为高度稳定的等离子体系统。

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摘要

The implementation of plasmonic nanoparticles in vivo remains hindered by important limitations such as biocompatibility, solubility in biological fluids, and physiological stability. A general and versatile protocol is presented, based on seeded emulsion polymerization, for the controlled encapsulation of gold and silver nanoparticles. This procedure enables the encapsulation of single nanoparticles as well as nanoparticle clusters inside a protecting polymer shell. Specifically, the efficient coating of nanoparticles of both metals is demonstrated, with final dimensions ranging between 50 and 200 nm, i.e., sizes of interest for bio-applications. Such hybrid nanocomposites display extraordinary stability in high ionic strength and oxidizing environments, along with high cellular uptake, and low cytotoxicity. Overall, the prepared nanostructures are promising candidates for plasmonic applications under biologically relevant conditions.
机译：等离子体质纳米粒子在体内的实施仍然受到诸如生物相容性，在生物流体中的溶解度和生理稳定性等重要限制的阻碍。提出了一种基于种子乳液聚合的通用且通用的方案，用于金和银纳米粒子的可控包封。该程序使得能够将单个纳米颗粒以及纳米颗粒簇封装在保护性聚合物壳内。具体地，证明了两种金属的纳米颗粒的有效涂层，其最终尺寸在50至200nm之间，即，生物应用感兴趣的尺寸。这样的杂化纳米复合材料在高离子强度和氧化环境中显示出非凡的稳定性，以及高细胞摄取和低细胞毒性。总体而言，制备的纳米结构是在生物学相关条件下等离子应用的有前途的候选者。

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  • 来源
    《Advanced Functional Materials》 |2019年第14期|1809071.1-1809071.11|共11页
  • 作者

    Scarabelli Leonardo; Schumacher Marius; de Aberasturi Dorleta Jimenez; Merkl Jan-Philip; Henriksen-Lacey Malou; de Oliveira Thais Milagres; Janschel Marcus; Schmidtke Christian; Bals Sara; Weller Horst; Liz-Marzan Luis M.;

  • 作者单位

    CIC BiomaGUNE, Paseo Miramon 182, Donostia San Sebastian 20014, Spain|CIBER BBN, Paseo Miramon 182, Donostia San Sebastian 20014, Spain|Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA;

    Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany;

    CIC BiomaGUNE, Paseo Miramon 182, Donostia San Sebastian 20014, Spain|CIBER BBN, Paseo Miramon 182, Donostia San Sebastian 20014, Spain;

    Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany;

    CIC BiomaGUNE, Paseo Miramon 182, Donostia San Sebastian 20014, Spain|CIBER BBN, Paseo Miramon 182, Donostia San Sebastian 20014, Spain;

    Univ Antwerp, Electron Microscopy Mat Sci EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;

    Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany;

    Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany;

    Univ Antwerp, Electron Microscopy Mat Sci EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;

    Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany|Fraunhofer CAN, D-20146 Hamburg, Germany;

    CIC BiomaGUNE, Paseo Miramon 182, Donostia San Sebastian 20014, Spain|CIBER BBN, Paseo Miramon 182, Donostia San Sebastian 20014, Spain|Ikerbasque, Basque Fdn Sci, Bilbao 48013, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    encapsulation; gold nanoparticles; polymer micelles; self-assembly; silver nanoparticles;

    机译：包封;金纳米颗粒;聚合物胶束;自组装;银纳米颗粒;

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