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Modeling on Microdroplet Formation for Cell Printing Based on Alternating Viscous-Inertial Force Jetting
Journal article   Peer reviewed

Modeling on Microdroplet Formation for Cell Printing Based on Alternating Viscous-Inertial Force Jetting

Long Zhao, Karen Chang Yan, Rui Yao, Feng Lin and Wei Sun
Journal of manufacturing science and engineering, v 139(1)
01 Jan 2017
DOI: https://doi.org/10.1115/1.4032768
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Engineering Engineering, Manufacturing Engineering, Mechanical Science & Technology Technology
Drop-on-demand (DOD) microdroplet jetting technology has diverse applications ranging from additive manufacturing (AM) and the integrated circuit (IC) industry to cell printing. An engineering model of droplet formation can provide insights for optimizing the process and ensuring its controllability and reproducibility. This paper reports a development of an engineering model on the fluid outflow and microdroplet formation based on alternating viscous-inertial force jetting (AVIFJ). The model provides a fundamental understanding on the mechanism of droplet formation driven by the alternating viscous force and inetial force. Furthermore, the model studies the fluid acceleration, velocity, and displacement under the conditions of a uniform cylindrical nozzle and a non-uniform cylindrical nozzle. In conjunction with an energy-based criterion for droplet formation, the model is applied to predict the formability of single microdroplets and the volume and velocity of formed microdroplets. A series of experiments was conducted to validate the developed model. The results show that the model predictions agree well with the experimental results. Specifically, comparing the model prediction and experimental results, the maximum difference of drop diameter is 4 mu m, and the maximum difference of drop velocity is 0.3 m/s. These results suggest that the developed theoretical model will provide guidance to the subsequent cell printing applications.

Metrics

11 Record Views
14 citations in Web of Science
12 citations in Scopus

Details

UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#9 Industry, Innovation and Infrastructure

Source: SDGs in the Output

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Engineering, Manufacturing
Engineering, Mechanical
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