VOLT-AMPERE CHARACTERISTICS OF SOLID-STATE NANOPORES FABRICATED BY FOCUSED ION BEAM
Solid-state nanopore has wide applications on singlemolecular detection, e. g. DNA-sequencing and protein identification. The most practical assay of using nanopore as a molecular sensor was (vertical) block current detection under a given voltage bias which has been the foremost signal in nanopore detection. Most common opinions consider FIB-drilled nanopores a fixed resistance since they are stable enough in buffers. In this paper the volt-ampere characteristics of solid-state nanopore fabricated by FIB, including the impact of pore size, and effects caused by ionic strength, was studied. The results showed that a solid-state nanopore should be treated as an electrical resistance in the circuit, whose value is changed by both effective diameter of the pore and bias voltage that had been applied. Furthermore, mathematical relationship between these parameters has also been given and discussed.
Volt-ampere characteristics solid-state nanopores focused ion beam ionic strength
Xie Xiao Liu Liping Wu Hongwen Liu Quanjun
State Key Laboratory of Bioelectronics, Southeast University Nanjing 210096, China Key Laboratory of State Key Laboratory of Bioelectronics, Southeast University Nanjing 210096, China
国际会议
重庆
英文
144-146
2011-10-28（万方平台首次上网日期，不代表论文的发表时间）