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Comparison Study on Single Nucleotide Transport Phenomena in Carbon Nanotubes
Wang, Yunjiao1,2; Wang, Zequn3; Wang, Liang1,2,4; Tong, Tianze3; Zhang, Xiaoling1,2; Fang, Shaoxi1,2; Xie, Wanyi1,2; Liang, Liyuan1,2; Yin, Bohua1,2; Yuan, Jiahu1,2
2022-01-18
摘要To be considered as a promising candidate for mimicking biological nanochannels, carbon nanotubes (CNTs) have been used to explore the mass transport phenomena in recent years. In this study, the single nucleotide transport phenomena are comparatively studied using individual CNTs with a length of similar to 15 mu m and diameters ranging from 1.5 to 2.5 nm. In the case of CNTs with a diameter of 1.57-1.98 nm, the current traces of nucleotide transport are independent with the metallicity of CNTs and consist of single peak current pulses, whereas extraordinary stepwise current signals are observed in CNT with a diameter of 2.33 nm. It suggests that there is only one molecule in the nanochannel at a time until the diameter of CNT increases to 2.33 nm. Furthermore, it also demonstrates that the single nucleotides can be identified statistically according to their current pulses, indicating the potential application of CNT-based sensors for nucleotides identification.
关键词Nanopore Nanochannel Carbon nanotube Single nucleotides Diameter dependence Nucleotide transport
DOI10.1021/acs.nanolett.1c03910
发表期刊NANO LETTERS
ISSN1530-6984
页码8
通讯作者Yuan, Jiahu(yjh@cigit.ac.cn) ; Zhang, Jin(jinzhang@pku.edu.cn) ; Wang, Deqiang(dqwang@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:000760234500001
语种英语