... 44:687.24. Srivastava A, Srivastava A, Talapatra S, Vajtai R, Ajayan PM: Carbonnanotube filters. Nat Mater 2004, 3:610.25. Xie SS, Li WZ, Pan ZW, Chang BH, Sun LF: Carbon nanotube arrays. EurPhys ... synthesis of aligned carbon nanotubesbundles using green natural precursor: neem oilRajesh Kumar, Radhey Shyam Tiwari*, Onkar Nath SrivastavaAbstractPractical application of aligned carbon nanotubes ... Raychaudhary, Prof. A. K. Sood, Prof. P. M. Ajayan, and Prof. D. P. Singh (Vice-Chancellor B.H.U) for their encouragement and support. The authors are also grateful to Prof. A. C.Pandey (Allahabad...