A MICROREACTOR USING SURFACE ACOUSTIC WAVE AS ENERGY SOURCE

被引：0
|
作者：
Zha, Yan [1 ]
Zhang, An-liang [1 ]
机构：
[1] Ningbo Univ, Dept Elect Engn, Ningbo 315211, Zhejiang, Peoples R China
来源：
PROCEEDINGS OF THE 2012 SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES AND DEVICE APPLICATIONS (SPAWDA12) | 2012年
关键词：
Microreactor; Surface acoustic wave; Microfluid; Piezoelectric substrate; ON-A-CHIP;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A microreactor is a key operation unit in a microfluidic device. However, lots of biochemical reactions do not occur at room temperature. Thus, a heating unit in these microfluidic devices is indispensable. A new microreactor with surface acoustic wave (SAW) as an energy source is presented. The microreactor has three elements, including surface acoustic wave heating source, two PDMS micro-vessels and a heat-transfer sheet metal. A glycerin microfluid in the PDMS micro-vessel on the piezoelectric substrate was heated by SAW radiation. The heat was then transferred to the reactants in the PDMS micro-vessel on the sheet metal. The heating effect of the microreactor was verified by melting solid paraffin and color development reaction. The results show that the microreactor can raise the temperature of reactants from 16.1 degrees C of room temperature to higher than 60 degrees C, which is enough for lots of biochemic reactions occurring at about 40 degrees C. The results also show that the microreactor can greatly improve the reaction velocity of starch color development reaction.
引用
收藏
页码：215 / 218
页数：4
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