Molecular Machinery: различия между версиями

===Carbon Nanotube Crimp Junction===

The high tensile strengths of carbon nanotubes make them likely material candidates in future nanoscale manufacturing applications.  In the absence of atomically precise manufacturing methods for fabricating continuous scaffoldings of a single nanotube, methods that lock nanotubes into place by strong electrostatic and/or steric approaches may be possible.  The diamondoid crimp junction shown at left is a single covalent nanostructure that fixes two nanotubes at right angles.

===Carbon Nanotube 6-way Junction===

The junction above is generated by three pairs of carbon nanotubes fixed along (x,y,z) axes.  The interfaces at the center of this junction are composed of 6 adamantane molecules covalently bound to each carbon nanotube and functionalized with either nitrogen (N) or boron (B) atoms.  These nanotubes are not covalently bound to one another, instead employing dative bonding between nearest-neighbor B-N pairs to hold the six nanotubes in place, a method that offers the possibility of complex structure formation via familiar chemical self-assembly.