This disclosure relates to morphological control of carbon nanotubes, to form shapes, including, inter alia, nanosprings, nanocoils and nanohooks of desired shape, diameter, chirality and /or pitch wherein a desired morphological design may be manipulated with spatially, sequential time varying electric fields formed by electrode arrays located and activated near the CNT growth substrate. These forms may be employed in a myriad of various applications, including, micro electromechanical systems and advanced microelectronic interconnects.