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A helpful method for controlled synthesis of monodisperse gold nanoparticles through response surface modeling
Arabian Journal of Chemistry ( IF 6 ) Pub Date : 2020-01-01 , DOI: 10.1016/j.arabjc.2017.04.003
Jairo P. Oliveira , Adilson R. Prado , Wanderson Juvêncio Keijok , Moisés R.N. Ribeiro , Maria J. Pontes , Breno V. Nogueira , Marco C.C. Guimarães

Abstract The interest in applying gold nanoparticles is principally based on their monodispersity. Therefore, the synthesis of monodisperse gold nanocrystals has a key role in designing nanomaterials for their specific application. However, it can represent a cutting edge for many laboratories, mainly because it requires a variety of complex techniques for properly characterizing metal nanoparticles with expensive and rugged equipment. Herein, we propose an approach to synthesize nanoparticles with controlled monodispersity that can be adjusted through the factorial experimental plan 3 2 using response surface modeling (RSM). The particles were characterized on the basis of visual observation, UV–visible spectroscopy, transmission electron microscopy, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS) and statistics. Our findings illustrate how factorial design is important to providing accurate projections of nanoparticle production using sodium citrate and borohydride as reducers. The proposed method leverages facile and inexpensive routes to synthesize monodisperse gold nanocrystals without the assistance of time-consuming image-based characterization tools.

中文翻译:

一种通过响应面建模控制合成单分散金纳米粒子的有用方法

摘要 应用金纳米粒子的兴趣主要是基于它们的单分散性。因此,单分散金纳米晶体的合成在为其特定应用设计纳米材料方面具有关键作用。然而,它可以代表许多实验室的前沿,主要是因为它需要各种复杂的技术才能使用昂贵且坚固的设备正确表征金属纳米粒子。在此,我们提出了一种合成具有受控单分散性的纳米粒子的方法,该方法可以使用响应面建模 (RSM) 通过析因实验计划 3 2 进行调整。通过目视观察、紫外-可见光谱、透射电子显微镜、扫描电子显微镜与能量色散 X 射线光谱 (SEM/EDS) 和统计数据相结合。我们的研究结果说明了析因设计对于提供使用柠檬酸钠和硼氢化钠作为还原剂的纳米颗粒生产的准确预测是多么重要。所提出的方法利用简便且廉价的途径来合成单分散金纳米晶体,而无需耗时的基于图像的表征工具的帮助。
更新日期:2020-01-01
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