Method of manufacture of colloidal rod particles as nanobarcodes

Abstract

A method is disclosed for the manufacture of colloidal rod particles as nanobarcodes. Template membranes for the deposition of materials are prepared using photolithographic techniques.

We claim:  
     
         1 . A method for the manufacture of a free standing nanoparticle, the method comprising: 
 a. providing a planer substrate;    b. causing deposition of a layer of material on said surface;    c. placing a mask over said material coated substrate, said mask comprising a plurality of cylindrical posts and prepared by the method comprising: 
 i) providing a resist-coated substrate;  
 ii) exposing a pattern on said resist-coated substrate using a photolithographic technique;  
 iii) developing said pattern; and  
 iv) etching said pattern;  
   d. releasing said nanoparticles from the surface of said substrate.