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首页> 外文期刊>RSC Advances >Greener saponin induced morphologically controlled various polymorphs of nanostructured iron oxide materials for biosensor applications
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Greener saponin induced morphologically controlled various polymorphs of nanostructured iron oxide materials for biosensor applications

机译：Greener Saponin诱导形态学控制的纳米结构氧化铁材料的各种多晶型物用于生物传感器应用

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摘要

Presently, the progress of green chemistry in the synthesis of magnetic nanoparticles with the use of plants has engrossed a great attention, that do not employ toxic chemicals in the synthesis protocols to avoid adverse effects in medical applications. Here, it is a report on rapid, energy-efficient, green and economically scalable room temperature protocol for the synthesis of different polymorphs of iron oxide nanostructures such as Fe3O4 nanospheres, gamma-Fe2O3 nanoribbons and alpha-Fe2O3 nanospheres using greener saponin as a bio-surfactant with tunable magnetic properties directed by particle shape. A bio-surfactant directed growth mechanism was proposed for the magnetic anisotropic structure formation and the aspect ratio can be controlled by changing reaction conditions. The electrochemical sensing properties of the as obtained gamma-Fe2O3 nanoribbon and alpha-Fe2O3 nanospheres modified glassy carbon electrode (GCE) towards dopamine and uric acid with different morphologies were investigated systematically. The electrochemical dynamic results confirmed that the superior electron transport ability of nanostructures exhibited a higher anodic current response with a negative shift in positive potential than the bare GCE. The gamma-Fe2O3 nanoribbon showed 100% enhanced electrochemical sensing performance compared to the alpha-Fe2O3 nanospheres. These studies suggested that non-spherical iron oxide nanoparticles (NPs) could potentially lead to further advancement in nanomedicine.
机译：目前，绿色化学在合成磁性纳米粒子与使用植物的过程中的进展引发了很大的关注，在合成方案中不采用有毒化学品，以避免在医疗应用中的不利影响。在这里，它是一种关于快速，节能，绿色和经济可伸缩的室温方案的报告，用于合成氧化铁纳米结构的不同多晶型，如Fe3O4纳米球，Gamma-Fe2O3纳米杆和α-Fe2O3纳米球，使用Greener Saponin作为生物 - 具有可调谐磁性的耐压剂，由颗粒形状引导。提出了生物表面活性剂定向的生长机理，用于磁各向异性结构形成，并且可以通过改变反应条件来控制纵横比。系统地研究了如所得γ-Fe2O3纳米 - 甲酰胺的电化学感测性和α-Fe2O3纳米甲醛改性玻璃碳电极（GCE）和具有不同形态的尿酸的玻璃碳电极（GCE）。电化学动态结果证实，纳米结构的优异电子传输能力表现出更高的阳极电流响应，其具有比裸GCE的正电势的负变换。与α-Fe 2 O 3纳米球相比，Gamma-Fe2O3纳米吸收显示器显示了100％的电化学传感性能。这些研究表明，非球形氧化铁纳米颗粒（NPS）可能导致纳米医生进一步推进。

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  • 来源
    《RSC Advances》 |2015年第91期|共8页
  • 作者

    Sundar Sasikala; Piraman Shakkthivel;

  • 作者单位

    Alagappa Univ Dept Nanosci &

    Technol Sustainable Energy &

    Smart Mat Res Lab Karaikkudi 630002 Tamil Nadu India;

    Alagappa Univ Dept Nanosci &

    Technol Sustainable Energy &

    Smart Mat Res Lab Karaikkudi 630002 Tamil Nadu India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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