scholarly journals Coaxial flow focusing in poly(dimethylsiloxane) microfluidic devices

2014 ◽  
Vol 8 (1) ◽  
pp. 016502 ◽  
Author(s):  
Tuan M. Tran ◽  
Sean Cater ◽  
Adam R. Abate
Keyword(s):  
Microfluidic Devices ◽  
Flow Focusing

Design, characterization and application of a novel mono-layer pin-microvalve for microfluidic devices

RSC Advances ◽  
2014 ◽  
Vol 4 (46) ◽  
pp. 24394-24398 ◽  
Author(s):  
Mahyar Nasabi ◽  
Masoomeh Tehranirokh ◽  
Francisco Javier Tovar-Lopez ◽  
Abbas Kouzani ◽  
Khashayar Khoshmanesh ◽  
...  
Keyword(s):  
Microfluidic Devices ◽  
Hydrodynamic Flow ◽  
Flow Focusing ◽  
Mono Layer

We introduce a novel manual pin-valve which can operate in both analogue (partially close) and digital (on/off) states. We also demonstrate implementation of this pin-valve in a hydrodynamic flow focusing (HFF) device.

Fab in a Package: LTCC Microfluidic Devices for Micro and Nanoparticle Fabrication

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000294-000302
Author(s):  
Mário Ricardo Gongora-Rubio ◽  
Kellen Heloizy Garcia Freitas ◽  
Juliana de Novais Schianti ◽  
Adriano Marim de Oliveira ◽  
Natália Neto Pereira Cerize ◽  
...  
Keyword(s):  
Energy Use ◽  
Microfluidic Devices ◽  
Chemical Processes ◽  
Mass Transportation ◽  
Flow Focusing ◽  
Automated Control ◽  
Microreaction Technology ◽  
Relevant Role ◽  
Excellent Control ◽  
Nanoparticle Fabrication

The chemical industry is moving toward miniaturization with the help of microreaction technology and automated control systems. Besides the evident advantages of Microtechnology like improved portability, reduced energy use, safety and flexibility, the main advantage associated with the miniaturization of chemical processes is the increased microreactor control due to predictable thermal and mass transportation properties. We understand that LTCC Microsystem technology have a relevant role in this area. LTCC Microfluidic devices have been applied to carry out several chemical processes operations, including mixing, separation, chemical reactions, heterogeneous catalysis, heat exchange and so on. More recently, LTCC microfluidic systems have also been used to produce micro- and nanoparticles with excellent control of size distribution, morphology and constitution. The present work give an account of some LTCC Microfluidic devices aimed for Micro and Nanoparticle fabrication. At this time we report devices for: Emulsion generation for obtaining alginate microparticles by ionic gelation; Electrospinning applications, Microreactors for silver nanoparticle production and 3D Flow focusing devices for pharmaceutical active nanocrystallization.

High-throughput continuous production of liposomes using hydrodynamic flow-focusing microfluidic devices

2017 ◽  
Vol 156 ◽  
pp. 349-357 ◽  
Author(s):  
Mariano Michelon ◽  
Davi Rocha Bernardes Oliveira ◽  
Guilherme de Figueiredo Furtado ◽  
Lucimara Gaziola de la Torre ◽  
Rosiane Lopes Cunha
Keyword(s):  
High Throughput ◽  
Continuous Production ◽  
Microfluidic Devices ◽  
Hydrodynamic Flow ◽  
Flow Focusing

Milliseconds Microfluidic Bubble Mixer Using Chaotic Advection

2008 ◽  
Author(s):  
Xiaole Mao ◽  
Bala Krishna Juluri ◽  
Michael Ian Lapsley ◽  
Tony Jun Huang
Keyword(s):  
Microfluidic Devices ◽  
Laminar Flows ◽  
Chaotic Advection ◽  
Hydrodynamic Interactions ◽  
Bubble Flow ◽  
Flow Focusing ◽  
Mixing Chamber ◽  
Passive Micromixer ◽  
Sample Homogenization ◽  
Complete Homogenization

In this work, we report a novel passive micromixer based on the perturbation of chaotic micro-bubbles. The sample flows (ink solution and water) were co-injected with nitrogen in a flow focusing orifice to generate side-by-side laminar flows segmented by monodisperse bubbles. The bubble flow subsequently enters a mixing chamber downstream, upon which the hydrodynamic interactions between two adjacent bubbles result in the stretching and folding of the laminar flow interface, which leads to a rapid chaotic mixing and complete homogenization of two separated streams. Our technique provides a simple, passive, and effective mixing mechanism for sample homogenization in microfluidic devices.

scholarly journals Preparing mono-dispersed liquid core PDMS microcapsules from thiol–ene–epoxy-tailored flow-focusing microfluidic devices

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15379-15386 ◽  
Author(s):  
P. Mazurek ◽  
A. E. Daugaard ◽  
M. Skolimowski ◽  
S. Hvilsted ◽  
A. L. Skov
Keyword(s):  
Click Chemistry ◽  
Material Properties ◽  
Liquid Core ◽  
Microfluidic Devices ◽  
Microfluidic Chips ◽  
Flow Focusing

A dual-cure system based on thiol–ene and thiol–epoxy “click chemistry” reactions proved to be an effective and easy to use tool for microfluidic chips, which provides control over material properties and enables covalently bonding of chip wafers.

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