| Molecular interactions on microarrays (1/3) : |
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| 1. The density of oligonucleotides on the surface is : |
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| ~ 10 pmol per mm2 on
aminated polypropylene, |
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| ~ 0.1 pmol per mm2 on
aminated glass after ammonia deprotection |
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| -
equivalent to one molecule per 39 square angstroms |
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| 2.
Spacers help to overcome steric interference |
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