Transverse electric field dragging of DNA in a nanochannel.
Transverse electric field dragging of DNA in a nanochannel.
复制标题
DOI:
10.1038/srep00394
复制
发表时间:
2012
影响因子:
4.6
通讯作者:
Kawai, Tomoji
中科院分区:
文献类型:
--
作者:
Tsutsui, Makusu;He, Yuhui;Furuhashi, Masayuki;Rahong, Sakon;Taniguchi, Masateru;Kawai, Tomoji
Nanopore analysis is an emerging single-molecule strategy for non-optical and high-throughput DNA sequencing, the principle of which is based on identification of each constituent nucleobase by measuring trans-membrane ionic current blockade or transverse tunnelling current as it moves through the pore. A crucial issue for nanopore sequencing is the fact that DNA translocates a nanopore too fast for addressing sequence with a single base resolution. Here we report that a transverse electric field can be used to slow down the translocation. We find 400-fold decrease in the DNA translocation speed by adding a transverse field of 10 mV/nm in a gold-electrode-embedded silicon dioxide channel. The retarded flow allowed us to map the local folding pattern in individual DNA from trans-pore ionic current profiles. This field dragging approach may provide a new way to control the polynucleotide translocation kinetics.
登录
查看更多内容
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
21.8
作者:
Erdmann, Matthias;David, Ralf;Gaub, Hermann E.
通讯作者:
Gaub, Hermann E.
影响因子:
15
作者:
Lieberman KR;Cherf GM;Doody MJ;Olasagasti F;Kolodji Y;Akeson M
通讯作者:
Akeson M
影响因子:
10.8
作者:
Fologea, D;Gershow, M;Li, JL
通讯作者:
Li, JL
影响因子:
10.8
作者:
Fologea, D;Uplinger, J;Li, JL
通讯作者:
Li, JL