Modified carbon and germanium surfaces
US7582422B2 · kind B2 · utility
1Cited by
2References
16Claims
0Family size
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Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Aug 4, 2025 |
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 ω-modified, α-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.