title: Electroactive aniline pentamer cross-linking chitosan for stimulation growth of electrically sensitive cells.
abstract: A new kind of electroactive polymers was synthesized by using aniline pentamer (AP) cross-linking chitosan (CS) in acetic acid/DMSO/DMF solution. UV-vis and CV confirmed the electroactivity of polymers in acidic aqueous solution. The amphiphilic polymers self-assembled into 200-300 nm micelles by dialysis against deionized water from the acetic acid buffer solution. Three samples with different weight percentages of AP were used to identify the relationship between the content of AP and the differentiation of rat neuronal pheochromocytoma PC-12 cells without external stimulation. From the results, samples with AP showed an obvious improvement in inducing PC-12 differentiation, while PC-12 on pure CS films had only little neurites on the fifth day; the cells on the films prepared from the samples with 4.9% and 9.5% AP even formed intricate networks. However, the influence of the AP content was the most significant at 4.9 wt % and it decreased when the content increased further.
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Hu
authors.forename: Lihong
authors.initials: L
authors.lastname: Huang
authors.forename: Xiuli
authors.initials: X
authors.lastname: Zhuang
authors.forename: Peibiao
authors.initials: P
authors.lastname: Zhang
authors.forename: Le
authors.initials: L
authors.lastname: Lang
authors.forename: Xuesi
authors.initials: X
authors.lastname: Chen
authors.forename: Yen
authors.initials: Y
authors.lastname: Wei
authors.forename: Xiabin
authors.initials: X
authors.lastname: Jing
mesh_terms: D019342:Acetic Acid / Q000737:chemistry; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry*; D002448:Cell Adhesion; D002454:Cell Differentiation; D049109:Cell Proliferation; D048271:Chitosan / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000494:pharmacology*; D004563:Electrochemistry / Q000379:methods*; D008823:Micelles; D016501:Neurites / Q000378:metabolism; D016716:PC12 Cells; D011108:Polymers / Q000737:chemistry; D051381:Rats; D014466:Ultraviolet Rays
chemical_list: D001672:Biocompatible Materials; D003432:Cross-Linking Reagents; D008823:Micelles; D011108:Polymers; D048271:Chitosan; D019342:Acetic Acid