Nano-structures Directed assembly of micro- and nano-structures

a directed assembly of nano particles. here particles form organized structure initial disorganized state.

nano-technology provides methods organizing materials such molecules, polymers, building blocks, etc. form precise nano-structures have many applications. in process , application of peptide self-assembly nano tubes, single-wall carbon nano tubes example consists of graphene sheet seamlessly wrapped cylinder. produced in outside flow of carbon , yield laser vaporization of graphite enriched transition metal.

nano-imprint lithography popular method fabricate nano-meter scale pattern. patterns made mechanical deformation of imprint resist (monomer or polymer formulation) , subsequent processes. then, cured heat or ultraviolet light, , tight level of resist , template controlled @ appropriate conditions depend on our purposes. in addition, nano-imprint lithography has high resolution , throughput low cost. disadvantages include increased time templating procedures, lack of standard procedures results in multiple fabrication methods, , patterns able formed limited.

with goal of mitigating these advantages while applying nanotechnology electronics, researchers @ national science foundation’s nano-scale science , engineering center high-rate nanomanufacturing (chn) @ northeastern university partners umass lowell , university of new hampshire have developed directed assembly process of single-walled carbon nano tube (swnt) networks create circuit template can transfer 1 substrate another.