微型化系统与微芯片四个等温扩增反应

Xing Chen, Lulu Zhang, D. Cui
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引用次数: 0

摘要

研制了一种基于微流控芯片的实时荧光生物医学检测系统,用于环介导等温扩增(LAMP)反应。采用微机电系统(MEMS)技术和薄铸工艺,设计制作了线性微通道和微单元两种微流控芯片。LAMP反应采用传统的离心管和微流控芯片。基于端点荧光检测的实验结果,该微流控芯片可成功用于LAMP反应。利用微流控芯片实时荧光检测生物医学系统进行阳性反应和阴性对照。利用实时荧光检测生物医学系统,将LAMP反应的体积从25 μL左右大大减少到2 μL~3 μL,反应时间从1小时缩短到半小时。该生物医学系统具有成本不高、分析检测时间短、试剂和样品消耗少等优点,具有实现即时诊断(POCT)的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Miniaturized systems with microchips for four isothermal amplification reactions
A real-time fluorescence detection biomedical system with a microfluidic chip was developed for loop-mediated isothermal amplification (LAMP) reactions. Two kinds of microfluidic chips with linear microchannels or microcells were designed and fabricated by MEMS technology and thin-casting method. Both traditional centrifugal tubes and microfluidic chips were used for LAMP reactions. Based on the experimental results of end-point fluorescence detection, the microfluidic chip can be successfully used for LAMP reactions. And then our real-time fluorescence detection biomedical system with a microfluidic chip was used to implement positive reaction and negative control. The volume of the LAMP reaction was greatly reduced from about 25 μL to 2 μL~3 μL and the reaction time can be reduced from one hour to half an hour by using our real-time fluorescence detection biomedical system. This biomedical system has the potential for point-of-care diagnostics (POCT) with the many advantages, such as not high cost, short analysis and detection time, not much reagent and sample consumption and so on.
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