Method of Preparing Surface Chemical Gradients
The present invention relates to a method of functionalizing a substrate, comprising the bringing into contact of at least a part of the surface of said substrate, comprising aldehyde functions, with a solution comprising at least two compounds bearing an amine function and having different pKas, in which the zone of contact between the surface of the substrate and the solution varies over time and where the pH of the solution is modified during this variation.
GIUSEPPONE NICOLAS [FR]; TAUK LARA [FR]; DECHER GERO [DE]; SCHRODER ANDRE [FR]
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