Transfer of Vertically Aligned Carbon Nanofibers to Polydimethylsiloxane (PDMS) While Maintaining their Alignment and Impalefection Functionality

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• 作者：Ryan C. Pearce ; Justin G. Railsback ; Bryan D. Anderson ; Mehmet F. Sarac ; Timothy E. McKnight ; Joseph B. Tracy ; Anatoli V. Melechko
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2013
• 出版时间：February 13, 2013
• 年：2013
• 卷：5
• 期：3
• 页码：878-882
• 全文大小：263K
• 年卷期：v.5,no.3(February 13, 2013)
• ISSN：1944-8252

文摘

Vertically aligned carbon nanofibers (VACNFs) are synthesized on Al 3003 alloy substrates by direct current plasma-enhanced chemical vapor deposition. Chemically synthesized Ni nanoparticles were used as the catalyst for growth. The Si-containing coating (SiN_x) typically created when VACNFs are grown on silicon was produced by adding Si microparticles prior to growth. The fiber arrays were transferred to PDMS by spin coating a layer on the grown substrates, curing the PDMS, and etching away the Al in KOH. The fiber arrays contain many fibers over 15 渭m (long enough to protrude from the PDMS film and penetrate cell membranes) and SiN_x coatings as observed by SEM, EDX, and fluorescence microscopy. The free-standing array in PDMS was loaded with pVENUS-C1 plasmid and human brain microcapillary endothelial (HBMEC) cells and was successfully impalefected.

Keywords:

carbon nanofibers; nickel; nanoparticles; catalyst; PECVD; transfection; nanomanufacturing