过滤(数学)
DNA提取
色谱法
萃取(化学)
生物
环境DNA
微流控
DNA
体积热力学
聚合酶链反应
材料科学
化学
遗传学
生态学
纳米技术
数学
基因
生物多样性
统计
物理
量子力学
作者
Takashi Fukuzawa,Yuichi Kameda,Hisao Nagata,Naofumi Nishizawa,Hideyuki Doi
标识
DOI:10.1111/1755-0998.13657
摘要
The environmental DNA (eDNA) method, which is widely applied in biomonitoring, is limited to laboratory analysis and processing. In this study, we developed a filtration/extraction component using a microfluidic channel, the Biryu-Chip (BC), and a filtration/extraction method, the BC method, to minimize the volume of the sample necessary for DNA extraction and subsequent PCR amplification. We tested the performance of the BC method and compared it with that of the Sterivex filtration/extraction method using aquarium and river water samples. We observed that using the BC method, the same concentration of extracted DNA was obtained with 1/20-1/40 of the filtration volume of the Sterivex method, suggesting that the BC method can be widely used for eDNA measurement. In addition, we performed on-site measurements of eDNA within 30 min using a mobile PCR device, demonstrating that filtration and extraction can be performed easily and quickly using the BC method. The PCR results obtained using the BC method were similar to those obtained using the Sterivex method. The BC method requires fewer steps; therefore, the risk of DNA contamination can be reduced. When combined with mobile PCR, the BC method can be applied to easily detect eDNA within 30 min from the collection of water sample, even on-site.
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