The present invention provides methods and apparatus for selectively patterning surfaces using radical species generated with a photocatalyst. The photocatalyst may comprise a photocatalytic semiconductor or a photosensitizer. The radical species are brought into contact with an oxidizable coating disposed...http://www.google.co.uk/patents/US8119335?utm_source=gb-gplus-sharePatent US8119335 - Methods and apparatus for selective, oxidative patterning of a surface
