title: Autonomous control of interfacial electron transfer and the activation of DNA machines by an oscillatory pH system.
abstract: An oscillatory pH system is implemented to drive oscillatory pH-switchable DNA machines and to control pH-stimulated electron transfer at electrode surfaces. 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.
authors.affiliation: The Key Lab of Analysis and Detection Technology for Food Safety of the MOE, College of Chemistry and Chemical Engineering, Fuzhou University , Fuzhou 350002, China.
authors.forename: Xiu-Juan
authors.initials: XJ
authors.lastname: Qi
authors.forename: Chun-Hua
authors.initials: CH
authors.lastname: Lu
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Liu
authors.forename: Simcha
authors.initials: S
authors.lastname: Shimron
authors.forename: Huang-Hao
authors.initials: HH
authors.lastname: Yang
authors.forename: Itamar
authors.initials: I
authors.lastname: Willner
mesh_terms: D004247:DNA / Q000737:chemistry*; D004579:Electron Transport; D004583:Electrons; D006863:Hydrogen-Ion Concentration; D009690:Nucleic Acid Conformation
chemical_list: D004247:DNA