Chemical functionalization of surfaces

Details Chemical functionalization of surfaces Chemical functionalization of surfaces

B - Operations, Transporting

05

D

B05D 3/06 (2006.01) A61K 47/48 (2006.01) B05D 3/02 (2006.01) C03C 17/28 (2006.01) C04B 41/82 (2006.01) C07K 1/13 (2006.01) C07K 17/00 (2006.01) C08F 8/34 (2006.01) C08J 7/12 (2006.01) C12N 11/00 (2006.01) C30B 31/22 (2006.01) G01N 21/77 (2006.01) G01N 33/532 (2006.01) G01N 33/543 (2006.01) G03F 7/00 (2006.01) G03F 7/20 (2006.01) G01N 21/45 (2006.01)

Patent

CA 2154444

Methods for covalently modifying surfaces of various substrates are disclosed, along with various substrates having surfaces modified by such methods. Candidate surfaces include various polymeric, siliceous, metallic, allotropic forms of carbon, and semiconductor surfaces. The surfaces are exposed to a reagent, having molecules each comprising a nitrenogenic group and a functionalizing group, in the presence of energized charged particles such as electrons and ions, photons, or heat, which transform the nitrenogenic reagent to a nitrene intermediate. The nitrene covalently reacts with any of various chemical groups present on the substrate surface, thereby effecting nitrene addition of the functionalazing groups to the substrate surface. The functionalazing groups can then participate in downstream chemistry whereby any of a large variety of functional groups, including biological molecules, can be covalently bonded to the surface, thereby dramatically altering the chemical behavior of the surface. Such functionalization of the surface can be done in a single reactive step or in multiple reactive steps.

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