Folic acid-polydopamine nanofibers show enhanced ordered-stacking via pi-pi interactions

	Folic acid-polydopamine nanofibers show enhanced ordered-stacking via pi-pi interactions
	Fan, Hailong 1; Yu, Xiang 1; Liu, Yang 2; Shi, Zujin 2; Liu, Huihui 3; Nie, Zongxiu 3,4; Wu, Decheng 3; Jin, Zhaoxia 1
刊名	SOFT MATTER
	2015
卷号	11 期号:23 页码:4621-4629
英文摘要	Recent research has indicated that polydopamine and synthetic eumelanins are optoelectronic biomaterials in which one-dimensional aggregates composed of ordered-stacking oligomers have been proposed as unique organic semiconductors. However, improving the ordered-stacking of oligomers in polydopamine nanostructures is a big challenge. Herein, we first demonstrate how folic acid molecules influence the morphology and nanostructure of polydopamine via tuning the pi-pi interactions of oligomers. MALDI-TOF mass spectrometry reveals that porphyrin-like tetramers are characteristic of folic acid-polydopamine (FA-PDA) nanofibers. X-ray diffraction combined with simulation studies indicate that these oligomers favour aggregation into graphite-like ordered nanostructures via strong pi-pi interactions. High-resolution TEM characterization of carbonized FA-PDA hybrids show that in FA-PDA nanofibers the size of the graphite-like domains is over 100 nm. The addition of folic acid in polydopamine enhances the ordered stacking of oligomers in its nanostructure. Our study steps forward to discover the mystery of the structure-property relationship of FA-PDA hybrids. It paves a way to optimize the properties of PDA through the design and selection of oligomer structures.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28174]
专题	化学研究所_活体分析化学实验室
作者单位	1.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Analyt Chem Living Biosyst, Beijing 100190, Peoples R China 4.Beijing Ctr Mass Spectrometry, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fan, Hailong,Yu, Xiang,Liu, Yang,et al. Folic acid-polydopamine nanofibers show enhanced ordered-stacking via pi-pi interactions[J]. SOFT MATTER,2015,11(23):4621-4629.
APA	Fan, Hailong.,Yu, Xiang.,Liu, Yang.,Shi, Zujin.,Liu, Huihui.,...&Jin, Zhaoxia.(2015).Folic acid-polydopamine nanofibers show enhanced ordered-stacking via pi-pi interactions.SOFT MATTER,11(23),4621-4629.
MLA	Fan, Hailong,et al."Folic acid-polydopamine nanofibers show enhanced ordered-stacking via pi-pi interactions".SOFT MATTER 11.23(2015):4621-4629.