scholarly journals Novel on-demand droplet generation for selective fluid sample extraction

2012 ◽  
Vol 6 (2) ◽  
pp. 024103 ◽  
Author(s):  
Robert Lin ◽  
Jeffery S. Fisher ◽  
Melinda G. Simon ◽  
Abraham P. Lee
Keyword(s):  
Droplet Generation ◽  
Fluid Sample ◽  
On Demand ◽  
Sample Extraction

A digital acoustofluidic device for on-demand and oil-free droplet generation

2018 ◽  
Vol 30 (8) ◽  
pp. 084001 ◽  
Author(s):  
Keke Chen ◽  
Chenxi Sui ◽  
Yue Wu ◽  
Zheng Ao ◽  
Shi-shang Guo ◽  
...  
Keyword(s):  
Droplet Generation ◽  
On Demand

scholarly journals Microfluidic on-demand droplet generation, storage, retrieval, and merging for single-cell pairing

Lab on a Chip ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 493-502 ◽  
Author(s):  
Hesam Babahosseini ◽  
Tom Misteli ◽  
Don L. DeVoe
Keyword(s):  
Single Cell ◽  
Aqueous Phase ◽  
Microfluidic Device ◽  
Droplet Generation ◽  
Microfluidic Platform ◽  
On Demand

A multifunctional microfluidic platform combining on-demand aqueous-phase droplet generation, multi-droplet storage, and controlled merging of droplets selected from a storage library in a single integrated microfluidic device is described.

scholarly journals On demand nanoliter-scale microfluidic droplet generation, injection, and mixing using a passive microfluidic device

2015 ◽  
Vol 9 (1) ◽  
pp. 014119 ◽  
Author(s):  
Uwe Tangen ◽  
Abhishek Sharma ◽  
Patrick Wagler ◽  
John S. McCaskill
Keyword(s):  
Microfluidic Device ◽  
Droplet Generation ◽  
On Demand

scholarly journals Selective cell encapsulation, lysis, pico-injection and size-controlled droplet generation using traveling surface acoustic waves in a microfluidic device

Lab on a Chip ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 3914-3921
Author(s):  
Kirk Mutafopulos ◽  
Peter J. Lu ◽  
Ryan Garry ◽  
Pascal Spink ◽  
David A. Weitz
Keyword(s):  
Microfluidic Device ◽  
Acoustic Waves ◽  
Single Cells ◽  
Surface Acoustic Waves ◽  
Cell Encapsulation ◽  
Droplet Generation ◽  
New Materials ◽  
On Demand ◽  
Interdigital Transducer ◽  
Size Controlled

We generate traveling surface acoustic waves with an interdigital transducer to create droplets on-demand; encapsulate single cells; lyse cells and immediately encapsulate their contents; and pico-inject new materials into existing droplets.

scholarly journals Versatile on-demand droplet generation for controlled encapsulation

2014 ◽  
Vol 8 (3) ◽  
pp. 034112 ◽  
Author(s):  
Minsoung Rhee ◽  
Peng Liu ◽  
Robert J. Meagher ◽  
Yooli K. Light ◽  
Anup K. Singh
Keyword(s):  
Droplet Generation ◽  
On Demand

scholarly journals Flexible Piezoelectric Drop-On-Demand Droplet Generation

2017 ◽  
Author(s):  
Norbert Riefler ◽  
Thomas Wriedt ◽  
Udo Fritsching
Keyword(s):  
Pressure Wave ◽  
Droplet Generation ◽  
Pulse Excitation ◽  
Generation Process ◽  
Two Phase ◽  
On Demand ◽  
Drop On Demand ◽  
Order Of Magnitude ◽  
Droplet Sizes ◽  
Phase Fluid

The size of droplets generated by piezoelectric drop-on-demand (DOD) droplet generators can be varied to a cer-tain degree within one order of magnitude. This variation means that the droplet size is not solely determined by the nozzle diameter, and the droplet generation process is not restricted to drops extruded through a nozzle in conven- tional operation. By varying the electronic driving pulse, different droplet sizes can be obtained. To investigate the interaction of piezoelectric pulse excitation and the finally produced droplets, different approaches are applied. A comparison of a modal analysis of a pure piezo based on mechanical admittance calculations proofs the usability of electrical impedance measurements. This kind of measurements are then compared to finite-element simulations of a coupled piezo system – one as actuator, the other as pressure sensor – to extend the usable methods with the result that the fluid is of minor influence on the modal frequencies. Last, two phase fluid flow simulations with consequent pressure wave evaluations of the fluid show different pressure wave frequency specta than the modalanalysis.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4846

On-Demand Production of Emulsion Droplets Using Magnetically Driven Microtool

2009 ◽  
Vol 3 (5) ◽  
pp. 502-508 ◽  
Author(s):  
Yoko Yamanishi ◽  
◽  
Yuki Kihara ◽  
Shinya Sakuma ◽  
Fumihito Arai
Keyword(s):  
External Force ◽  
Parallel Plate ◽  
Droplet Generation ◽  
Hybrid Polymer ◽  
On Demand ◽  
Emulsion Droplets ◽  
Specific Direction ◽  
Magnetic Metal ◽  
Polymer Metal

We propose a hybrid polymer-metal magnetically driven microtool (MMT) featuring elasticity and rigidity. An electroplated magnetic metal axle is installed directly at the center of the MMT during molding. The result is a hybrid MMT whose fixed axes move elastically in a specific direction and whose center axle is rigid, preventing bending by unwanted external force. The axle’s higher magnetism contributes to powerful actuation. The hybrid MMT we designed provides on-demand droplet dispensation on chips. Its parallel plate is constrained translationally. Hybrid MMT displacement is 300 μm - 6 times greater than that of the conventional MMT. On-demand droplet generation produces a 177.7 ±2.3 μm droplet.

scholarly journals High-speed droplet generation on demand driven by pulse laser-induced cavitation

Lab on a Chip ◽  
2011 ◽  
Vol 11 (6) ◽  
pp. 1010 ◽  
Author(s):  
Sung-Yong Park ◽  
Ting-Hsiang Wu ◽  
Yue Chen ◽  
Michael A. Teitell ◽  
Pei-Yu Chiou
Keyword(s):  
Pulse Laser ◽  
High Speed ◽  
Droplet Generation ◽  
On Demand
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