A micromachined elastomeric tip array for contact printing with variable dot size and density
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We report a flexible and versatile microcontact printing process using a micromachined elastomeric PDMS (poly-dimethylsiloxane) stamp with two-dimensional arrays of pyramidal tips. The PDMS stamp was molded from a bulk-etched single-crystalline silicon master. By changing the contact pressure, arrayed dot patterns with different dot sizes (from submicron to a few microns) were obtained controllably with one single PDMS stamp. Variable density of dot patterns was also achieved in a 'step-print' manner by conducting multiple printing on a transitional stage. This technique is expected to be useful in many nano- and biotechnology applications, including single cell and neuron studies. 2008 IOP Publishing Ltd.
Journal of Micromechanics and Microengineering
author list (cited authors)
Hong, J. M., Ozkeskin, F. M., & Zou, J.
complete list of authors
Hong, Jung Moo||Ozkeskin, Fatih M||Zou, Jun