Related by context. Frequent words. (Click for all words.) 60 asymmetrically 60 helical 59 symmetrically 58 perpendicularly 56 filaments 56 filament 56 waveguides 55 helices 55 dimer 55 magnetic flux 55 microchannels 55 hemispherical 55 magnetization 54 crystal lattice 54 torus 54 longitudinally 54 helix 53 magnetically 53 thermally 53 windings 53 stator 53 workpiece 53 horizontally 53 sinusoidal 53 flanges 53 Z axis 52 rotatable 52 tubules 52 silicon substrate 52 concentric 52 apical 52 radii 52 excitons 52 magnetised 51 lithosphere 51 flagella 51 spindle 51 mandrel 51 perpendicular 51 transverse 51 hydraulically 51 microtubules 51 axial 51 waveguide 51 nanometer sized 51 graphene sheets 51 magnetic particles 51 microtubule 51 concentric rings 50 collagen fibers 50 vertically 50 actuator 50 anisotropic 50 DNA strands 50 cantilevers 50 photonic crystal 50 spline 50 annular 50 SWNTs 50 laminar 50 globular 50 counterclockwise 50 temperature gradient 50 outwards 50 functionalized 50 distal 50 spacer 49 spherical 49 Supplementary Fig 49 ionized gas 49 vertices 49 radial 49 nanotube 49 sawtooth 49 dimers 49 laser pulse 49 dorsal 49 plasma membrane 49 capillary 49 outermost 49 μm 49 torsional 49 infeed 49 diameters 49 protrusions 49 protrusion 49 unidirectional 48 nucleosome 48 outer membrane 48 combustion chambers 48 microstructures 48 resonator 48 lattice 48 cylindrical 48 electrically conductive 48 hexagonal 48 micelles 48 circumferential 48 gravitationally 48 evenly spaced 48 fibronectin