Autonomous Control of Interfacial Electron Transfer and the Activation of DNA Machines by an Oscillatory pH System

被引：54

作者：

Qi, Xiu-Juan ^{[1
,2
,3
]}

Lu, Chun-Hua ^{[2
,3
]}

Liu, Xiaoqing ^{[2
,3
]}

Shimron, Simcha ^{[2
,3
]}

Yang, Huang-Hao ^{[1
]}

Willner, Itamar ^{[2
,3
]}

机构：

[1] Fuzhou Univ, Key Lab Anal & Detect Technol Food Safety, MOE, Coll Chem & Chem Engn, Fuzhou 350002, Peoples R China

[2] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel

[3] Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

来源：

NANO LETTERS | 2013年 / 13卷 / 10期

关键词：

i-Motif; tweezers; monolayer; impedance; electrode; CHEMICAL OSCILLATORS; DRIVEN; GENERATION; DESIGN; MOTION;

D O I：

10.1021/nl402873y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An oscillatory pH system is implemented to drive oscillatory pH-switchable DNA machine:: and to control pH-stimulated electron transfer at electrode surfraces, The oscillatory pH system drives the autonomous opening and closure of DNA tweezers and activates a DNA pendulum by the pH-stimulated formation and dissociation of i-motif structures. Also, a sequence-programmed nucleic acid monolayer-functionalized electrode undergoes autonomous oscillatory pH transitions between random coil and i-motif configurations, leading to the control of electron transfer at electrode surfaces.

引用

页码：4920 / 4924

页数：5

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