Patterning of surfaces utilizing microfluidic stamps including three-dimensionally arrayed channel networks

A method of patterning a material surface comprising:

• providing a stamp having a structure including at least two non-fluidically interconnected flow paths therein including a first fluid flow path defining a first pattern of channels disposed within a stamping surface of the structure and a second fluid flow path defining a second pattern of channels disposed within the stamping surface of the structure, with each of the first and second patterns of channels being non-continuous, and with channels defining the first pattern being non-intersecting with channels defining the-second pattern;
• contacting the stamping surface with a portion of the material surface;
• while maintaining the stamping surface in contact with the portion of the material surface, at least partially filling the first flow path with a first fluid so that at least a portion of the first fluid contacts the material surface and at least partially filling the second flow path with a second fluid so that at least a portion of the second fluid contacts the material surface;
• and
• removing the stamping surface to provide a pattern on the material surface according to the first pattern, which is formed by contact of the material surface with the first fluid, and according to the second pattern, which is formed by contact of the material surface with the second fluid.