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Composite Electrospun Nanofibers of Reduced Graphene Oxide Grafted With poly(3-dodecylthiophene) and poly(3-thiophene Ethanol) and Blended With Polycaprolactone

Composite Electrospun Nanofibers of Reduced Graphene Oxide Grafted With poly(3-dodecylthiophene) and poly(3-thiophene Ethanol) and Blended With Polycaprolactone

Raana Sarvari, Somaye Sattari, Bakhshali Massoumi, Samira Agbolaghi, Younes Beygi-Khosrowshahi, Amir Kahaie-Khosrowshahi

J Biomater Sci Polym Ed. 2017 Oct;28(15):1740-1761.

PMID: 28691869

Abstract:

In this paper, an effective method was employed for preparation of nanofibers using conducting polymer-functionalized reduced graphene oxide (rGO). First, graphene oxide (GO) was obtained from graphite by Hommer method. GO was reduced to rGO by NaBH4 and covalently functionalized with a 3-thiophene acetic acid (TAA) by an esterification reaction to reach 3-thiophene acetic acid-functionalized reduced graphene oxide macromonomer (rGO-f-TAAM). Afterward, rGO-f-TAAM was copolymerized with 3-dodecylthiophene (3DDT) and 3-thiophene ethanol (3TEt) to yield rGO-f-TAA-co-PDDT (rGO-g-PDDT) and rGO-f-TAA-co-P3TEt (rGO-g-PTEt), which were confirmed by Fourier transform infrared spectra. The grafted materials depicted better electrochemical properties and superior solubilities in organic solvents compared to GO and rGO. The soluble rGO-g-PDDT and rGO-g-PTEt composites blended with polycaprolactone were fabricated by electrospinning, and then cytotoxicity, hydrophilicity, biodegradability and mechanical properties were investigated. The grafted rGO composites exhibited a good electroactivity behavior, mainly because of the enhanced electrochemical performance. The electrospun nanofibers underwent degradation about 7 wt% after 40 days, and the fabricated scaffolds were not able to induce cytotoxicity in mouse osteoblast MC3T3-E1 cells. The soluble conducting composites developed in this study are utilizable in the fabrication of nanofibers with tissue engineering application.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP104934523	3-Dodecylthiophene		104934-52-3	Price

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