Journal
BIOTECHNIQUES
Volume 45, Issue 6, Pages 649-+Publisher
FUTURE SCI LTD
DOI: 10.2144/000113002
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Molecular combing of DNA is an extremely powerful DNA fiber-stretching technique that is often used in DNA replication and genome stability studies. Optimal DNA combing results mainly depend on the quality of the silanized surfaces onto which fibers are stretched. Here we describe an improved method of liquid-phase silanization using trimethoxy-octenylsilane/n-heptane as novel silane/solvent combination. Our simple method produces homogenously modified coverslips in a reproducible manner, but does not require any sophisticated or expensive equipment in comparison to other known silanization protocols. However DNA fibers were combed onto these coverslips with very good high-density alignment and stayed irreversibly bound onto the surfaces after various denaturing treatments, as required for different immunofluorescent detection of DNA with incorporated modified nucleotides or FISH.
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