Journal
LAB ON A CHIP
Volume 11, Issue 3, Pages 455-459Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0lc00095g
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Microcontact printing (mu CP) is a rapid, inexpensive way to create microscale chemical or biochemical patterns on a target surface. This microstamping method can be used to selectively modify a wide array of surface properties, from wettability and protein adsorption to chemical etch susceptibility. However, controlling the absolute location of features created with microcontact printing is difficult; this lack of precision makes it challenging to integrate with other microfabrication methods or to create complex, multi-chemical patterns on a single surface. In this research, we demonstrate a novel method of controlling the placement of microcontact printing stamps by using an integrated kinematic coupling device. This technique relies on mechanical reference points for rapid, optics-free registry of the stamp and allows mCP stamps to be quickly removed and replaced or even exchanged with submicron repeatability.
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