Microreactor array device.

Microreactor array device.
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DOI:
10.1038/srep08736
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发表时间:
2015-03-04
期刊:
影响因子:
4.6
通讯作者:
LaBaer J
LaBaer J
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wiktor P;Brunner A;Kahn P;Qiu J;Magee M;Bian X;Karthikeyan K;LaBaer J

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我们报告了一种装置,以填补一系列的小化学反应室(微反应器)与试剂,然后密封它们使用加压粘性液体通过一个灵活的膜。该装置能够进行多个独立的化学反应,涉及自由浮动的中间分子,而不受相邻反应或外部环境的干扰。该装置通过在约10,000个点的微阵列中直接从DNA原位表达的蛋白质进行验证,在三小时孵育期间没有扩散。使用该装置探测血清样品中的自身抗体癌症生物标志物,与在平面显微镜载玻片上表达的标准蛋白质微阵列相比,信号背景比高五倍。物理设计原则,以有效地填充微反应器的阵列与试剂和实验结果的替代方法密封的微反应器。
We report a device to fill an array of small chemical reaction chambers (microreactors) with reagent and then seal them using pressurized viscous liquid acting through a flexible membrane. The device enables multiple, independent chemical reactions involving free floating intermediate molecules without interference from neighboring reactions or external environments. The device is validated by protein expressed in situ directly from DNA in a microarray of ~10,000 spots with no diffusion during three hours incubation. Using the device to probe for an autoantibody cancer biomarker in blood serum sample gave five times higher signal to background ratio compared to standard protein microarray expressed on a flat microscope slide. Physical design principles to effectively fill the array of microreactors with reagent and experimental results of alternate methods for sealing the microreactors are presented.
DOI: 10.1158/1055-9965.epi-09-0880
发表时间: 2010-03
期刊: Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
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