期刊
NANOMEDICINE
卷 2, 期 4, 页码 459-481出版社
FUTURE MEDICINE LTD
DOI: 10.2217/17435889.2.4.459
关键词
alpha-hemolysin; DNA and RNA translocation; DNA sequencing; single-molecule analysis; synthetic; solid-state nanopores
Nanopore-based DNA analysis is a single-molecule technique with revolutionary potential. It promises to carry out a range of analyses, orders of magnitude faster than current methods, including length measurement, specific sequence detection, single-molecule dynamics and even de novo sequencing. The concept involves using an applied voltage to drive DNA molecules through a narrow pore that separates chambers of electrolyte solution. This voltage also drives a flow of electrolyte ions through the pore, measured as an electric current. When molecules pass through the pore, they block the flow of ions and, thus, their structure and length can be determined based on the degree and duration of the resulting current reductions. In this review, I explain the nanopore-based DNA analysis concept and briefly explore its historical foundations, before discussing and summarizing all experimental results reported to date. I conclude with a summary of the obstacles that must be overcome for it to realize its promised potential.
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