![61. Reversible DNA micro-patterning using the fluorous effect](https://cdn.prod.website-files.com/6380be6ed1140b78394d35e6/647f6a01997a04a78ef42cdf_Get.jpg)
We describe a new method for the immobilisation of DNA into defined patterns with sub-micron resolution, using the fluorous effect. The method is fully reversible via a simple solvent wash, allowing the patterning, regeneration and re-patterning of surfaces with no degradation in binding efficiency following multiple removal/attachment cycles of different DNA sequences.