...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS Omega >Preparation of Gold Nanocomposites with Tunable Charge and Hydrophobicity via the Application of Polymer/Surfactant Complexation
【24h】

Preparation of Gold Nanocomposites with Tunable Charge and Hydrophobicity via the Application of Polymer/Surfactant Complexation

机译：通过聚合物/表面活性剂络合制备具有可调节电荷和疏水性的金纳米复合材料

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

During the synthesis of gold nanoparticle (NP) assemblies, the interfacial charge and hydrophobicity of the primary particles play a distinguished role. In the present article, we demonstrate that the association of poly(ethyleneimine) (PEI) capped gold NPs with sodium alkyl sulfates provide a powerful route for the manipulation of these interfacial properties. Dynamic light-scattering, electrophoretic mobility, UV–vis–near-infrared spectroscopy, nanoparticle tracking analysis, and transmission electron microscopy measurements were used to characterize the PEI/surfactant/gold nanoassemblies. The results indicate the formation of gold NPs surrounded by a PEI/surfactant shell with composition-dependent charge and hydrophobicity. The mean size and the aggregation of the nanoassemblies can be fine tuned by the amount of surfactant bound to the primary gold NPs as well as by the application of controlled mixing methods. The specific features of the prepared nanocomposites may be further exploited in next-generation applications.
机译：在金纳米粒子（NP）组件的合成过程中，初级粒子的界面电荷和疏水性起着显著作用。在本文中，我们证明了聚（乙烯亚胺）（PEI）封端的金纳米粒子与烷基硫酸钠的缔合为操纵这些界面性质提供了一条有力的途径。动态光散射，电泳迁移率，紫外-可见-近红外光谱，纳米粒子跟踪分析和透射电子显微镜测量用于表征PEI /表面活性剂/金纳米组件。结果表明，金纳米颗粒的形成被PEI /表面活性剂壳包围，并具有依赖成分的电荷和疏水性。纳米组件的平均大小和聚集可以通过结合到主要金纳米颗粒上的表面活性剂的量以及通过应用受控混合方法来进行微调。制备的纳米复合材料的具体特征可能会在下一代应用中得到进一步利用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号