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首页> 外文会议>IEEE International Conference on Micro Electro Mechanical Systems >Fabrication of Gold Nanoparticle Using Pulsed Mixing Method with Valveless Micropumps
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Fabrication of Gold Nanoparticle Using Pulsed Mixing Method with Valveless Micropumps

机译：脉冲混合方法用阀门微泵制造金纳米粒子

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Small-dispersed gold nanoparticles were produced using a pulsed mixing method with a microfluidic device. This mixing method allowed to control mixing time of gold salts and reduction agent which is essential parameter for gold nanoparticle systhesis. The microfluidic device utilized was consisted of a Y-shaped microchannel connected to an expanded microchannel and two piezoelectric valveless micropumps. It was confirmed that diffusion time of pulsed mixing was 234 times faster than that of a laminar flow mixing with the same microchannel width of 150 μm. The fabricated gold nanoparticles with mixing frequency of 200 Hz had average diameter size of 23 nm and its standard deviation of 3.1 %. The produced partcile size was increased and its standard deviation was decreased with increasing the mixing frequency.
机译：使用具有微流体装置的脉冲混合方法制备小分散的金纳米颗粒。这种混合方法可控制金盐和还原剂的混合时间，这是金纳米粒子的必要参数。所使用的微流体装置由连接到扩展的微通道和两个压电阀门微泵的Y形微通道组成。确认脉冲混合的扩散时间比具有相同微通道宽度为150μm的层流混合的速度快234倍。具有200Hz的混合频率的制造的金纳米颗粒的平均直径尺寸为23nm，其标准偏差为3.1％。产生的部分尺寸增加，随着增长的混合频率而降低了标准差。

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