Quantification of cDNA on GMR biosensor array towards point-of-care gene expression analysis.
Quantification of cDNA on GMR biosensor array towards point-of-care gene expression analysis.
复制标题
在GMR生物传感器阵列上对cDNA的定量cDNA对护理基因表达分析的定量。
DOI:
10.1016/j.bios.2018.09.050
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发表时间:
2019-04-01
影响因子:
12.6
通讯作者:
Wang SX
中科院分区:
文献类型:
--
作者:
Ravi N;Rizzi G;Chang SE;Cheung P;Utz PJ;Wang SX
Gene expression analysis at the point-of-care is important for rapid disease diagnosis, but traditional techniques are limited by multiplexing capabilities, bulky equipment, and cost. We present a gene expression analysis platform using a giant magnetoresistive (GMR) biosensor array, which allows multiplexed transcript detection and quantification through cost-effective magnetic detection. In this work, we have characterized the sensitivity, dynamic range, and quantification accuracy of Polymerase chain reaction (PCR)-amplified complementary DNA (cDNA) on the GMR for the reference gene GAPDH. A synthetic GAPDH single-stranded DNA (ssDNA) standard was used to calibrate the detection, and ssDNA dilutions were qPCR-amplified to obtain a standard curve. We demonstrate that the GMR platform provides a dynamic range of 4 orders of magnitude and a limit of detection of 1 pM and 0.1 pM respectively for 15 and 18-cycle amplified synthetic GAPDH PCR products. The quantitative results of GMR analysis of cell-line RNA were confirmed by qPCR.
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影响因子:
12.6
作者:
Hall DA;Gaster RS;Lin T;Osterfeld SJ;Han S;Murmann B;Wang SX
通讯作者:
Wang SX
影响因子:
4.6
作者:
Dobnik D;Štebih D;Blejec A;Morisset D;Žel J
通讯作者:
Žel J
影响因子:
4.6
作者:
Lee JR;Haddon DJ;Wand HE;Price JV;Diep VK;Hall DA;Petri M;Baechler EC;Balboni IM;Utz PJ;Wang SX
通讯作者:
Wang SX
影响因子:
12.6
作者:
Xu, Liang;Yu, Heng;Wang, Shan X.
通讯作者:
Wang, Shan X.
DOI:
10.1073/pnas.0810822105
发表时间:
2008-12-30
影响因子:
11.1
作者:
Osterfeld, Sebastian J.;Yu, Heng;Wang, Shan X.
通讯作者:
Wang, Shan X.