Carbon FAK inhibitor 2004, 42:331–335.CrossRef 4. Li X, Xu Z: Controllable synthesis of helical, straight, hollow and nitrogen-doped carbon nanofibers and their magnetic properties. Mater Res Bull 2012, 47:4383–4391.CrossRef 5. Jian X, Jiang M, Zhou Z, Zeng Q, Lu J, Wang D, Zhu J, Gou J, Wang Y, Hui D, Yang M: Gas-induced formation of Cu nanoparticle as catalyst

for high-purity straight and helical carbon nanofibers. ACS Nano 2012, 6:8611–8619.CrossRef 6. Jian X, Jiang M, Zhou Z, Yang M, Lu J, Hu S, Wang Y, Hui D: Preparation of high purity helical carbon nanofibers by the catalytic decomposition of acetylene and their growth mechanism. Carbon 2010, 48:4535–4541.CrossRef 7. Jayatissa A, Guo K: Carbon helixes produced by hot filament assisted chemical vapor deposition. J Mater Sci Mater Electron 2010, 21:509–513.CrossRef 8. Mukhopadhyay K, Porwal D, Ram K, Rao KUB: Synthesis of carbon coiled micro/nano-structures in the

absence of sulphurous promoter. GDC-0994 in vivo J Mater Sci 2007, 42:379–383.CrossRef 9. Ding Q, Song X, Yao X, Qi X, Au C-T, Zhong W, Du Y: Large-scale and controllable synthesis of metal-free nitrogen-doped carbon nanofibers and nanocoils over water-soluble Na 2 CO 3 . Nanoscale Res Lett 2013, 8:545.CrossRef 10. Yu L, Qin Y, Sui L, Zhang Q, Cui Z: Two opposite growth modes of carbon nanofibers prepared by catalytic decomposition of acetylene at low temperature. J Mater Sci 2008, 43:883–886.CrossRef 11. Dong L, Yu L, Cui Z, Dong H, Ercius P, Song C, Duden T: Direct imaging of copper catalyst migration inside helical carbon nanofibers. Nanotechnology 2012, 23:BX-795 nmr 035702.CrossRef 12. Chen X, Takeuchi K, Yang S, Motojima S: Morphology and growth mechanism of single-helix spring-like carbon nanocoils with laces prepared Gemcitabine research buy using Ni/molecular sieve (Fe) catalyst. J Mater Sci 2006, 41:2351–2357.CrossRef 13. In-Hwang W, Kuzuya T, Iwanaga H, Motojima S: Oxidation characteristics of the graphite micro-coils, and growth mechanism of the carbon coils. J Mater Sci 2001, 36:971–978.CrossRef 14. Shang Y, He X, Li Y, Zhang L, Li Z, Ji C, Shi E, Li P, Zhu K, Peng Q, Wang C, Zhang X, Wang R, Wei J, Wang K, Zhu H, Wu D, Cao A: Super-stretchable

spring-like carbon nanotube ropes. Adv Mater 2012, 24:2896–2900.CrossRef 15. Raghubanshi H, Hudson MSL, Srivastava ON: Synthesis of helical carbon nanofibres and its application in hydrogen desorption. Int J Hydrogen Energ 2011, 36:4482–4490.CrossRef 16. Nitze F, Mazurkiewicz M, Malolepszy A, Mikolajczuk A, Kędzierzawski P, Tai C-W, Hu G, Kurzydłowski KJ, Stobinski L, Borodzinski A, Wågberg T: Synthesis of palladium nanoparticles decorated helical carbon nanofiber as highly active anodic catalyst for direct formic acid fuel cells. Electrochim Acta 2012, 63:323–328.CrossRef 17. Lau K, Lu M, Hui D: Coiled carbon nanotubes: synthesis and their potential applications in advanced composite structures. Compos Part B 2006, 37:437–448.CrossRef 18.