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A Surface‐Confined Proton‐Driven DNA Pump Using a Dynamic 3D DNA Scaffold
Author(s) -
Zhu Dan,
Pei Hao,
Yao Guangbao,
Wang Lihua,
Su Shao,
Chao Jie,
Wang Lianhui,
Aldalbahi Ali,
Song Shiping,
Shi Jiye,
Hu Jun,
Fan Chunhai,
Zuo Xiaolei
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201506407
Subject(s) - scaffold , tetrahedron , materials science , dna , nanotechnology , nanostructure , dna nanotechnology , microfluidics , computer science , crystallography , chemistry , biochemistry , database
A proton‐driven molecular pump is devised using a surface‐confined dynamic 3D DNA scaffold. A dynamic DNA tetrahedral nanostructure is designed by incorporating a pH‐sensitive i‐motif sequence in one edge, which serves as the scaffold to ensure highly ordered orientation and spatial isolation of this nanomachine on the macroscopic gold surface. It is found that the switching ability of this dynamic tetrahedron is fully maintained on the surface. Importantly, this proton‐driven nanomachine can reversibly pump water and ferricynide in response to pH variation in solution.