A MEMS-Based Approach to Single Nucleotide Polymorphism Genotyping.
A MEMS-Based Approach to Single Nucleotide Polymorphism Genotyping.
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DOI:
10.1016/j.sna.2012.07.025
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发表时间:
2013-06-01
影响因子:
4.6
通讯作者:
Lin, Qiao
中科院分区:
文献类型:
--
作者:
Zhu, Jing;Palla, Mirko;Ronca, Stefano;Wapner, Ronald;Ju, Jingyue;Lin, Qiao
关键词:
Genotyping of single nucleotide polymorphisms (SNPs) allows diagnosis of human genetic disorders associated with single base mutations. Conventional SNP genotyping methods are capable of providing either accurate or high-throughput detection, but are still labor-, time-, and resource-intensive. Microfluidics has been applied to SNP detection to provide fast, low-cost, and automated alternatives, although these applications are still limited by either accuracy or throughput issues. To address this challenge, we present a MEMS-based SNP genotyping approach that uses solid-phase-based reactions in a single microchamber on a temperature control chip. Polymerase chain reaction (PCR), allele specific single base extension (SBE), and desalting on microbeads are performed in the microchamber, which is coupled with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to analyze the SBE product. Experimental results from genotyping of the SNP on exon 1 of the HBB gene, which causes sickle cell anemia, demonstrate the potential of the device for rapid, accurate, multiplexed and high-throughput detection of SNPs.
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