High-Throughput Printing via Microvascular Multinozzle Arrays

1. Christopher J. Hansen¹, 
2. Rajat Saksena²,
3. David B. Kolesky¹, 
4. John J. Vericella¹,
5. Stephen J. Kranz¹, 
6. Gregory P. Muldowney³,
7. Kenneth T. Christensen², 
8. Jennifer A. Lewis^1,*

Article first published online: 26 OCT 2012

DOI: 10.1002/adma.201203321

Microvascular multinozzle arrays are designed and fabricated for high-throughput printing of functional materials. Ink-flow uniformity within these multigeneration, bifurcating microchannel arrays is characterized by computer modeling and microscopic particle image velocimetry (micro-PIV) measurements. Both single and dual multinozzle printheads are produced to enable rapid printing of multilayered periodic structures over large areas (≈1 m²).