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首页> 外文期刊>RSC Advances >Polyphenol-gelatin nanoparticles as reductant and stabilizer for one-step synthesis of gold nanoparticles and their interfacial behavior
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Polyphenol-gelatin nanoparticles as reductant and stabilizer for one-step synthesis of gold nanoparticles and their interfacial behavior

机译：多酚 - 明胶纳米颗粒作为还原剂和稳定剂，用于一步合成金纳米粒子及其界面行为

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摘要

A facile method for the one-step synthesis of gold nanoparticles (AuNPs) supported on tannic acid (TA) and gelatin self-assembled nanoparticles at room temperature was proposed. Tannic acid, a kind of polyphenol extracted from plants, could be self-assembled into nanoparticles with gelatin by strong hydrophobic interactions. This self-assembly nanoparticle acted as a reductant and stabilizer and was shown to be a good nano reactor for in situ synthesis of AuNPs. The stabilized AuNPs were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Fourier transforminfrared Spectroscopy (FTIR). The average size of the AuNPs was about 10 nm with a spherical shape. The reduction process of AuNPs was accompanied by the oxidation of polyphenol hydroxyl groups. Surprisingly, we found the oil-water interfacial behavior of polyphenol/gelatin nanoparticles had significant changes after AuNPs synthesis on the surface. Dynamic interfacial rheology tests revealed that AuNPs decreased the interfacial tension and enhanced the moduli of surface dilatational.
机译：提出了一种用于在室温下支持的单宁酸（TA）和明胶自组装纳米颗粒上负载的金纳米颗粒（AUNP）的一步合成的容易方法。单宁酸，从植物中提取的一种多酚，可以通过强疏水相互作用将纳米颗粒自组装成纳米颗粒。这种自组装纳米粒子用作还原剂和稳定剂，并且被示出为原位合成AUNP的纳米反应器。通过透射电子显微镜（TEM），X射线光电子能谱（XPS）和傅里叶变换荧光光谱（FTIR）以稳定的AUNP为特征。剖腹产的平均尺寸约为10nm，具有球形。 AUNP的还原过程伴有多酚羟基的氧化。令人惊讶的是，我们发现多酚/明胶纳米粒子的油水界面行为在表面上合成后具有显着的变化。动态界面流变学测试显示，肛周降低界面张力并增强了表面扩张的模量。

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  • 来源
    《RSC Advances》 |2015年第34期|共8页
  • 作者

    Jin Weiping; Xu Wei; Ge Honghe; Li Yan; Li Bin;

  • 作者单位

    Huazhong Agr Univ Coll Food Sci &

    Technol Wuhan Hubei Peoples R China;

    Huazhong Agr Univ Coll Food Sci &

    Technol Wuhan Hubei Peoples R China;

    Huazhong Agr Univ Coll Food Sci &

    Technol Wuhan Hubei Peoples R China;

    Huazhong Agr Univ Coll Food Sci &

    Technol Wuhan Hubei Peoples R China;

    Huazhong Agr Univ Coll Food Sci &

    Technol Wuhan Hubei Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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