High-precision microcontact printing of interchangeable stamps using an integrated kinematic coupling.
Microcontact printing (µCP) 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 µCP stamps to be quickly removed and replaced or even exchanged with submicron repeatability.
Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506, USA. trinkle@engr.uky.edu
Christine A
CA
Trinkle
Luke P
LP
Lee
D001696:Biomechanical Phenomena; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D009757:Nylons / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry*; D013499:Surface Properties; D017155:Wettability
D004129:Dimethylpolysiloxanes; D009757:Nylons; D011506:Proteins; C085707:poly(dimethylsiloxane)-polyamide copolymer