Self-assembly of conjugated polymers and ds-oligonucleotides directed fractal-like aggregates.
Highly ordered nanostructures between conjugated polymers and ds-oligonucleotides have been first fabricated by simply controlling the self-assembly processes, which shows a novel concept for fabricating fractal-like structures. The formation of polymer/DNA fractal-like aggregates is a diffusion-limited aggregation (DLA) process. The fractal dimension is independent of the polymer/DNA concentration but only related to the polymer/DNA charge ratio. More interestingly, the different fluorescent resonance energy transfer (FRET) behavior between the polymer and the DNA can be used to distinguish dsDNA from ssDNA.
Gan
Haiyang
H
Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
Li
Yuliang
Y
Liu
Huibiao
H
Wang
Shu
S
Li
Cuihong
C
Yuan
Mingjian
M
Liu
Xiaofeng
X
Wang
Chunru
C
Jiang
Lei
L
Zhu
Daoben
D
D001483:Base Sequence; D004247:DNA / Q000737:chemistry* / Q000648:ultrastructure; D004277:DNA, Single-Stranded / Q000737:chemistry* / Q000648:ultrastructure; D004058:Diffusion; D031541:Fluorescence Resonance Energy Transfer; D017709:Fractals; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D009841:Oligonucleotides / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
D004277:DNA, Single-Stranded; D009841:Oligonucleotides; D011108:Polymers; C473966:poly(phenylene ethynylene); D004247:DNA