title: Functional "Janus" Annulus in Confined Channels.
abstract: Scattered Au 3D nanoparticles form distinct functional regions with an uncovered internal surface in confined channels, named the "Janus" annulus. Electrochemical impedance spectroscopy responses to the variations in DNA self-assembly and hybridization in the channels decorated by the "Janus" annulus are presented. Single nucleotide mutations are further detected in a linear DNA chain, including terminal base polymorphisms.
authors.affiliation: Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Pengcheng
authors.initials: P
authors.lastname: Gao
authors.affiliation: State Key Laboratory of Material Processing and Die & Mould Technology, School of Material Sciences and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Lintong
authors.initials: L
authors.lastname: Hu
authors.affiliation: Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Nannan
authors.initials: N
authors.lastname: Liu
authors.affiliation: Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Zekun
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Xiaoding
authors.initials: X
authors.lastname: Lou
authors.affiliation: State Key Laboratory of Material Processing and Die & Mould Technology, School of Material Sciences and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Tianyou
authors.initials: T
authors.lastname: Zhai
authors.affiliation: State Key Laboratory of Material Processing and Die & Mould Technology, School of Material Sciences and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Huiqiao
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.|National Engineering Research Center for Nanomedicine Institute of Material Medical, College of Life Science & Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
authors.forename: Fan
authors.initials: F
authors.lastname: Xia
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D004247:DNA / Q000737:chemistry*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D006046:Gold; D004247:DNA; D000537:Aluminum Oxide
keywords: Au nanoparticles; confined channels; electrochemical impedance spectroscopy; single nucleotide mutations; “Janus” annulus