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Assembly of a Versatile Micro Dispenser Using Off-The-Shelf Components for Applications in Microfluidics

Published online by Cambridge University Press:  21 November 2014

Harjyot Mohar ,
Annie O ,
Steven Jimenez ,
Leonel Munoz ,
Victor Hernandez ,
Arturo Estrada ,
Sewan Fan  and
Laura Fatuzzo
Harjyot Mohar
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Annie O
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Steven Jimenez
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Leonel Munoz
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Victor Hernandez
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Arturo Estrada
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Sewan Fan
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
Laura Fatuzzo
Affiliation:
Department of Physics, Hartnell College 411 Central Ave, Salinas, CA 93901
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Abstract

We designed and constructed a drop-on-demand (DOD) droplet dispenser using the piezo inkjet technique that is simple to construct and operate and makes use of readily available components. The droplet dispenser can be easily fitted with cost effective glass nozzles and can be readily tuned to produce consistent drop sizes. The dynamics of the droplet motion are obtained using a calibrated analog video imaging system. We observed very high accelerations for the ejected droplets that corroborate with the applied drive pulse amplitudes. The acceleration measured, near the ejection nozzle, was many times the acceleration of gravity with the largest value of 34g’s. We successfully dispensed glycol water solutions and aqueous suspensions of titanium oxide nanoparticles, with values greater than 10 in the measured pH. For the inkjet droplets deposited on smooth gold/chromium substrates (±3nm surface roughness variation), we observed the well-known coffee ring effect using optical microscopy and nanoparticle morphology using an atomic force microscope.

Keywords

ink-jet printingcolloidTi
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1686: Symposium V – Micro- and Nanofluidic Systems for Materials Synthesis, Device Assembly and Bioanalysis , 2014 , mrss14-1686-v03-10
Copyright
Copyright © Materials Research Society 2014 

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References

Magdassi, S., editor, The Chemistry of Inkjet Inks (World Scientific Publishing Co., pte. Ltd., Singapore 2010) pp. 212–213.Google Scholar
Lee, I.T., Fan, S., Halyo, V., Lee, E. R., Kim, P.C., Perl, M. L., Rogers, H., Loomba, D., Lackner, K. S., Shaw, G., Phys. Rev. D 66, 012002 (2002).10.1103/PhysRevD.66.012002CrossRefGoogle Scholar
Lee, E. R., Microdrop Generation, (CRC Press LLC, Boca Raton, Florida 2003) pp. 220.Google Scholar
Patterson, Jordan, Lee, John, Adam Huang, Po-Hao, “Measuring Surface Tension of Propylene Glycol and water mixture for use as a propellant for Cube Satellites”, www.pdfmgr.com/pdf/propylene-glycol-mixture-chart-2.html, date accessed, October 3, 2014.Google Scholar
“Viscosity of Aqueous Propylene Glycol Solutions”, www.lyondellbasell.com/techlit/techlit/2514.pdf, date accessed, October 3, 2014.Google Scholar
Collins, A. M., Nanotechnology Cookbook, (Elsevier, Oxford, UK, 2012) pp. 42–43.Google Scholar
Bogy, D. B., Take, F.E., IBM Journal Research Development 28, (3), 314–321 (1984).10.1147/rd.283.0314CrossRefGoogle Scholar
Marion, J. B., Thornton, S. T., Classical Dynamics of Particles & Systems, 3rd ed. (HBJ, Orlando, Florida, 1988) pp. 57–58.Google Scholar
Pitas, I., Digital Image Processing Algorithms and Applications, (John Wiley & Sons, New York, 2000) pp. 241–247.Google Scholar