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首页> 外文期刊>Bioprocess and Biosystems Engineering >Syzygium aromaticum extract mediated, rapid and facile biogenic synthesis of shape-controlled (3D) silver nanocubes
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Syzygium aromaticum extract mediated, rapid and facile biogenic synthesis of shape-controlled (3D) silver nanocubes

机译：蒲桃提取物介导的形状控制（3D）银纳米立方体的快速，容易生物合成。

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The synthesis of metal nano materials with controllable geometry has received extensive attention of researchers from the past decade. In this study, we report an unexplored new route for rapid and facile biogenic synthesis of silver nanocubes (AgNCs) by systematic reduction of silver ions with crude clove (Syzygium aromaticum) extract at room temperature. The formation and plasmonic properties of AgNCs were observed and the UV-vis spectra show characteristic absorption peak of AgNCs with broaden region at 430 nm along with the intense (124), (686), (454) and (235) peak in X-ray diffraction pattern confirmed the formation and crystallinity of AgNCs. The average size of AgNC cubes were found to be in the range of similar to 80 to 150 nm and it was confirmed by particles size distribution, scanning and transmission electron microscopy with elemental detection by EDAX. Further FTIR spectra provide the various functional groups present in the S. aromaticum extract which are supposed to be responsible and participating in the reaction for the synthesis of AgNCs. The AgNCs casted over glass substrate show an electrical conductivity of similar to 0.55 x 10(6) S/m demonstrating AgNCs to be a potential next generation conducting material due to its high conductivity. This work provides a novel and effective approach to control the shape of silver nanomaterial for impending applications. The current synthesis mode is eco-friendly, low cost and promises different potential applications such as biosensing, nanoelectronics, etc.
机译：在过去的十年中，具有可控几何形状的金属纳米材料的合成受到研究人员的广泛关注。在这项研究中，我们报告了通过在室温下用粗丁香（Syzygium aromaum）提取物系统还原银离子来快速，便捷地生物合成银纳米立方体（AgNCs）的新途径。观察到了AgNCs的形成和等离激元性质，UV-vis光谱显示了AgNCs的特征吸收峰，该峰在430 nm处具有较宽的区域，并且在X-射线中具有强烈的（124），（686），（454）和（235）峰。射线衍射图证实了AgNC的形成和结晶。发现AgNC立方体的平均尺寸在约80至150nm的范围内，并且通过粒度分布，扫描和透射电子显微镜以及由EDAX进行元素检测来证实。进一步的FTIR光谱提供了存在于芳香链球菌提取物中的各种官能团，这些官能团被认为负责并参与了AgNC的合成反应。浇铸在玻璃基板上的AgNCs的电导率类似于0.55 x 10（6）S / m，这表明AgNCs由于其高导电率而成为潜在的下一代导电材料。这项工作提供了一种新颖有效的方法来控制银纳米材料的形状，以备将来使用。当前的合成模式是环境友好的，低成本的，并有望在生物传感，纳米电子学等不同的潜在应用中发挥作用。

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