Investigation of Volume of Fluids (VOF) Method and System Models for Design of Microfluidic Ink Delivery Apparatus for Dip Pen Nanolithography (DPN)
Texas A&M University, US
DPN, VOF, lab-on-chip, micro-capillary flow, meniscus bifurcation, bubble trap
DPN™ is a versatile technology that leverages Scanning Probe Microscopy for applications in biotechnology, photomask repair, molecular-electronics, nano-electronics and mask-less lithography(1). In earlier studies (2) the DPN process was augmented for biotechnology applications (genomics, proteomics) through the design, development, prototype fabrication, testing and manufacture of commercial microfluidic systems called “Inkwells™”. In this study VOF method was used to simulate and optimize the design of micro-capillary flows in Inkwells. Subsequently the simulations were verified experimentally. Based on these results a novel system model was developed to predict the temporal sequence of flow in the different parts of the microfluidic network.
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Nanotech 2005 Conference Program Abstract