scholarly journals NOVEL ROOM TEMPERATURE MICROFLUIDIC DEVICE FABRICATION: A HIGH RESOLUTION, 3D PRINTING APPROACH USING ELECTROHYDRODYNAMIC JET PRINTING

2018 ◽  
Author(s):  
C. Pannier ◽  
Z. Wang ◽  
D.J. Hoelzle ◽  
K.L. Barton
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Microfluidic Device ◽  
Room Temperature ◽  
Device Fabrication ◽  
Electrohydrodynamic Jet Printing ◽  
Jet Printing

scholarly journals A Review of Current Methods in Microfluidic Device Fabrication and Future Commercialization Prospects

Inventions ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 60 ◽  
Author(s):  
Bruce Gale ◽  
Alexander Jafek ◽  
Christopher Lambert ◽  
Brady Goenner ◽  
Hossein Moghimifam ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Microfluidic Device ◽  
Microfluidic Devices ◽  
Device Fabrication ◽  
Costs And Benefits ◽  
Engineering Applications ◽  
Commercial Use ◽  
Microfabrication Techniques

Microfluidic devices currently play an important role in many biological, chemical, and engineering applications, and there are many ways to fabricate the necessary channel and feature dimensions. In this review, we provide an overview of microfabrication techniques that are relevant to both research and commercial use. A special emphasis on both the most practical and the recently developed methods for microfluidic device fabrication is applied, and it leads us to specifically address laminate, molding, 3D printing, and high resolution nanofabrication techniques. The methods are compared for their relative costs and benefits, with special attention paid to the commercialization prospects of the various technologies.

High-resolution additive direct writing of metal micro/nanostructures by electrohydrodynamic jet printing

2021 ◽  
Vol 543 ◽  
pp. 148800
Author(s):  
Wuhao Zou ◽  
Haibo Yu ◽  
Peilin Zhou ◽  
Ya Zhong ◽  
Yuechao Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Direct Writing ◽  
Electrohydrodynamic Jet Printing ◽  
Jet Printing

scholarly journals Tip-assisted electrohydrodynamic jet printing for high-resolution microdroplet deposition

2019 ◽  
Vol 166 ◽  
pp. 107609 ◽  
Author(s):  
Wuhao Zou ◽  
Haibo Yu ◽  
Peilin Zhou ◽  
Lianqing Liu
Keyword(s):  
High Resolution ◽  
Electrohydrodynamic Jet Printing ◽  
Jet Printing

Mechanisms, Capabilities, and Applications of High-Resolution Electrohydrodynamic Jet Printing

Small ◽  
2015 ◽  
Vol 11 (34) ◽  
pp. 4237-4266 ◽  
Author(s):  
M. Serdar Onses ◽  
Erick Sutanto ◽  
Placid M. Ferreira ◽  
Andrew G. Alleyne ◽  
John A. Rogers
Keyword(s):  
High Resolution ◽  
Electrohydrodynamic Jet Printing ◽  
Jet Printing

A Model of Liquid-Drop Spreading for Electrohydrodynamic Jet Printing

2015 ◽  
Author(s):  
Christopher P. Pannier ◽  
Kira Barton ◽  
David Hoelzle ◽  
Zhi Wang
Keyword(s):  
High Resolution ◽  
Viscous Friction ◽  
Length Scale ◽  
Droplet Spreading ◽  
Loop Control ◽  
Electrohydrodynamic Jet Printing ◽  
Viscous Losses ◽  
Jet Printing ◽  
Base Radius ◽  
Small Disturbances

Electrohydrodynamic jet (E-jet) printing is a recent technique for high resolution additive micromanufacturing. With high resolution comes sensitivity to small disturbances, which has kept this technique from reaching its industrial potential. Closed loop control of E-jet printing can overcome these disturbances, but it requires an improved understanding of ink droplet spreading on the substrate and a physical model to predict printed feature locations and geometries from process inputs and disturbances. This manuscript examines a model of ink droplet spreading that uses assumptions that are important to the e-jet process. Our model leverages previous energy balance models that were derived for larger length scale droplets. At the smaller length scale, we find that viscous losses are a significant portion of the energy budget and must be accounted for; this is in contrast to models at length scales two orders of magnitude larger. Our model predicts the droplet height, base radius and contact angle in time from an initial volume and E-jet printing control parameters. The model is validated with published droplet spreading data and new measurements of E-jet printed droplets of diameter 8 μm. The viscous friction calculated in the new model is found to be significant compared to surface energy.

A Control-Oriented Dynamical Model of Deposited Droplet Volume in Electrohydrodynamic Jet Printing

2020 ◽  
Author(s):  
Isaac A. Spiegel ◽  
Tom van de Laar ◽  
Tom Oomen ◽  
Kira Barton
Keyword(s):  
High Resolution ◽  
High Speed ◽  
System Model ◽  
Droplet Volume ◽  
Hybrid Dynamical System ◽  
Electrohydrodynamic Jet Printing ◽  
Control Schemes ◽  
Volume Measurements ◽  
Jet Printing ◽  
Definition Of

Abstract Electrohydrodynamic jet printing (e-jet printing) is a nascent additive manufacturing process most notable for extremely high resolution printing and having a vast portfolio of printable materials. These capabilities make e-jet printing promising for applications such as custom electronics and biotechnology fabrication. However, reliably fulfilling e-jet printing’s potential for high resolution requires delicate control of the volume deposited by each jet. Such control is made difficult by a lack of models that both capture the dynamics of volume deposition and are compatible with the control schemes relevant to e-jet printing. This work delivers such a model. Specifically, this work introduces a definition of “droplet volume” as a dynamically evolving variable rather than a static variable, and uses this definition along with analysis of high speed microscope videos to develop a hybrid dynamical system model of droplet volume evolution. This model is validated with experimental data, which involves the contribution of a novel technique for extracting consistent droplet volume measurements from videos.

High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes

Nanoscale ◽  
2015 ◽  
Vol 7 (32) ◽  
pp. 13410-13415 ◽  
Author(s):  
Kukjoo Kim ◽  
Gyeomuk Kim ◽  
Bo Ram Lee ◽  
Sangyoon Ji ◽  
So-Yun Kim ◽  
...  
Keyword(s):  
High Resolution ◽  
Small Molecule ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Electrohydrodynamic Jet Printing ◽  
Jet Printing

An electrohydrodynamic jet (e-jet) printed high-resolution (pixel width of 5 μm) small-molecule organic light-emitting diode (OLED) is demonstrated.

scholarly journals High-Resolution Patterns of Quantum Dots Formed by Electrohydrodynamic Jet Printing for Light-Emitting Diodes

Nano Letters ◽  
2015 ◽  
Vol 15 (2) ◽  
pp. 969-973 ◽  
Author(s):  
Bong Hoon Kim ◽  
M. Serdar Onses ◽  
Jong Bin Lim ◽  
Sooji Nam ◽  
Nuri Oh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Resolution ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Electrohydrodynamic Jet Printing ◽  
Jet Printing

scholarly journals Three-Dimensional Printing Based Hybrid Manufacturing of Microfluidic Devices

2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Yunus Alapan ◽  
Muhammad Noman Hasan ◽  
Richang Shen ◽  
Umut A. Gurkan
Keyword(s):  
3D Printing ◽  
Microfluidic Device ◽  
High Surface ◽  
Three Dimensional ◽  
Microfluidic Devices ◽  
Single Step ◽  
Device Fabrication ◽  
Hybrid Manufacturing ◽  
Fabrication Method ◽  
Design Complexity

Microfluidic platforms offer revolutionary and practical solutions to challenging problems in biology and medicine. Even though traditional micro/nanofabrication technologies expedited the emergence of the microfluidics field, recent advances in advanced additive manufacturing hold significant potential for single-step, stand-alone microfluidic device fabrication. One such technology, which holds a significant promise for next generation microsystem fabrication is three-dimensional (3D) printing. Presently, building 3D printed stand-alone microfluidic devices with fully embedded microchannels for applications in biology and medicine has the following challenges: (i) limitations in achievable design complexity, (ii) need for a wider variety of transparent materials, (iii) limited z-resolution, (iv) absence of extremely smooth surface finish, and (v) limitations in precision fabrication of hollow and void sections with extremely high surface area to volume ratio. We developed a new way to fabricate stand-alone microfluidic devices with integrated manifolds and embedded microchannels by utilizing a 3D printing and laser micromachined lamination based hybrid manufacturing approach. In this new fabrication method, we exploit the minimized fabrication steps enabled by 3D printing, and reduced assembly complexities facilitated by laser micromachined lamination method. The new hybrid fabrication method enables key features for advanced microfluidic system architecture: (i) increased design complexity in 3D, (ii) improved control over microflow behavior in all three directions and in multiple layers, (iii) transverse multilayer flow and precisely integrated flow distribution, and (iv) enhanced transparency for high resolution imaging and analysis. Hybrid manufacturing approaches hold great potential in advancing microfluidic device fabrication in terms of standardization, fast production, and user-independent manufacturing.

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