Patent · US Expired

Modified carbon, silicon, & germanium surfaces

US6569979B1 · kind B1 · utility

14Cited by

0References

37Claims

0Family size

Assignee

Wisconsin Alumni Research Foundation · US

Inventors

Todd C. Strother · Cottage Grove, US
Lloyd M. Smith · Atlanta, US
Robert J. Hamers · Madison, US

Key dates

Filing date	Sep 8, 2000
Grant date	May 27, 2003
Priority date	—
Expiry date	Sep 8, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/761
WIPO fieldMicro-structural and nano-technology
WIPO sectorChemistry

Abstract

Chemically-modified surfaces on unoxidized carbon, silicon, and germanium substrates are disclosed. Ultraviolet radiation mediates the reaction of protected &ohgr;-modified, &agr;-unsaturated aminoalkenes (preferred) with hydrogen-terminated carbon, silicon, or germanium surfaces. Removal of the protecting group yields an aminoalkane-modified silicon surface. These amino groups can be coupled to terminal-modified oligonucleotides using a bifunctional crosslinker, thereby permitting the preparation of modified surfaces and arrays. Methods for controlling the surface density of molecules attached to the substrate are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.