title: In-Phase Assembly of Slim DNA Lattices with Small Circular DNA Motifs via Short Connections of 11 and 16 Base Pairs.
abstract: Two kinds of stable motif were constructed: SAE (semi-crossover, antiparallel, even half-turns) tile from one small circular DNA molecule (42 or 64 nt) and two linear oligonucleotides; and DAE (double-crossover, antiparallel, even half-turns) tile from one small circular DNA molecule (42 or 64 nt) and four linear oligonucleotides. With the SAE tiles, in-phase assembly of SAE-E (SAE tiles with even half-turns as connections (-E)) with the shortest -E of 11 base pairs (bp) generated homogeneous nanotubes with an average length of over 14 μm and a diameter of 16-20 nm; with the DAE tiles, in-phase assembly of DAE-O (DAE tiles with odd half-turns as connections (-O)) with the shortest -O of 16 bp produced slim monolayer nanoyarns (25-30 nm wide), nanoscarfs (100-300 nm wide), and nanoribbons (∼100 nm wide). Interestingly, a phenomenon we term "knitting nanoyarns" into nanoscarfs was observed. Finally a curvature mechanism according to the ring rotation directions is suggested to explain the formation of nanotubes, wavy nanoyarns, nanoscarfs, and nanoribbons.
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 163 Xianlin Boulevard, Nanjing, 210023, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 163 Xianlin Boulevard, Nanjing, 210023, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 163 Xianlin Boulevard, Nanjing, 210023, China.
authors.forename: Chuan
authors.initials: C
authors.lastname: Jiang
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 163 Xianlin Boulevard, Nanjing, 210023, China.
authors.forename: Xuemei
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 163 Xianlin Boulevard, Nanjing, 210023, China. sjxiao@nju.edu.cn.
authors.forename: Shou-Jun
authors.initials: SJ
authors.lastname: Xiao
mesh_terms: D020029:Base Pairing; D004247:DNA / Q000737:chemistry* / Q000378:metabolism; D004270:DNA, Circular / Q000737:chemistry; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry; D043942:Nanotubes / Q000737:chemistry; D059372:Nucleotide Motifs; D010316:Particle Size
chemical_list: D004270:DNA, Circular; D004247:DNA
keywords: DNA structures; in-phase assembly; nanoribbons; nanostructures; nanotubes; nanoyarns