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首页> 外文期刊>ACS nano >A simple millifluidic benchtop reactor system for the high-throughput synthesis and functionalization of gold nanoparticles with different sizes and shapes
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A simple millifluidic benchtop reactor system for the high-throughput synthesis and functionalization of gold nanoparticles with different sizes and shapes

机译：一个简单的微流体台式反应器系统，用于高通量合成和功能化具有不同大小和形状的金纳米颗粒

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摘要

Despite the continuing interest in the applications of functionalized nanomaterials, the controlled and reproducible synthesis of many important functionalized nanoparticles (NPs) above the milligram scale continues to be a significant challenge. The synthesis of functionalized NPs in automated reactors provides a viable approach to circumvent some of the shortcomings of traditional nanomaterial batch syntheses, providing superior control over reagent addition, improved reproducibility, the opportunity to interface real-time product monitoring, and a viable high-throughput synthetic approach. Here, we demonstrate the construction and operation of a simple millifluidic reactor assembled entirely from commercially available components found in almost any chemical laboratory. This reactor facilitates the aqueous gram-scale synthesis of a variety of functionalized gold nanoparticles, including the synthesis of gold nanospheres with tightly controlled core diameters and gold nanorods with controlled aspect ratios between 1.5 and 4.0. The absolute dimensions (i.e., the transverse diameter) of gold nanorods synthesized within the reactor can also be tailored to produce different gold nanorod shapes, including "small" gold nanorods and gold nanocubes. In addition, we show that the reactor can interface with existing purification and monitoring techniques in order to enable the high-throughput functionalization/purification of gold nanorods and real-time monitoring of gold nanoparticle products for quality control. We anticipate that this millifluidic reactor will provide the blueprint for a versatile and portable approach to the gram-scale synthesis of monodisperse, hydrophilically functionalized metal NPs that can be realized in almost any chemistry research laboratory.
机译：尽管对功能化纳米材料的应用一直有兴趣，但毫克级以上许多重要的功能化纳米颗粒（NPs）的可控制和可重复合成仍然是一项重大挑战。自动化反应器中功能化NP的合成提供了一种可行的方法来绕开传统纳米材料批量合成的某些缺点，对试剂添加进行了出色的控制，提高了可重复性，提供了实时产品监控接口的机会，并且可行的高通量综合方法。在这里，我们演示了一个完全由几乎在任何化学实验室中都能找到的市售组件组装而成的简单毫流体反应器的构造和操作。该反应器促进了各种功能化金纳米颗粒的水克规模合成，包括具有严格控制的核直径的金纳米球和具有受控的长径比在1.5和4.0之间的金纳米棒的合成。在反应器内合成的金纳米棒的绝对尺寸（即，横向直径）也可以定制以产生不同的金纳米棒形状，包括“小”金纳米棒和金纳米立方体。另外，我们表明反应器可以与现有的纯化和监测技术对接，以实现金纳米棒的高通量功能化/纯化以及对金纳米颗粒产品的实时监测以进行质量控制。我们预计，这种毫流体反应器将为通用和便携式方法的克规模合成单分散的，亲水性官能化的金属NPs提供蓝图，该方法几乎可以在任何化学研究实验室中实现。

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