Flow focusing is an important hydrodynamic technique for cytometric analysis, enabling the rapid study of cellular samples to identify a variety biological processes. To date, majority flow-focusing devices are fabricated using conventional photolithography or flame processing glass capillaries. This article presents suite low-cost, millifluidic, that were desktop sterolithgraphy (SLA) 3D print...

Monodispersed organic phase droplets with an average diameter from 20 to 200 µm were produced at the rate of up 20,000 per second in a glass microfluidic chip composed 7 parallel 3D flow focusing junctions 100 µm-deep channels. The continuous was 2 wt% polyvinyl alcohol solution, while dispersed dichloromethane, n-dodecane, and polydimethylsiloxane 10 cSt fluid corresponding dispersed-to-contin...

When two miscible fluids are brought into contact with each other, the concentration gradients induce stresses. These referred to as Korteweg stresses and analogous interfacial tension between immiscible fluids, thereby acting an effective (EIT) in inhomogeneous systems. EIT governs formation of a viscous thread flow-focusing fluids. To further investigate its significance, we have studied coll...

This paper demonstrates the use of magnetically controlled microfluidic devices to produce monodispersed ferrofluid emulsions. By applying a uniform magnetic field on flow-focusing and T-junction configurations, the size of the ferrofluid emulsions can be actively controlled. The influences of the flow rates, the orientation, and the polarity of the magnetic field on the size of ferrofluid emul...

In the past two decades, microfluidics has become of great value in precisely aligning cells or microparticles within fluids. Microfluidic techniques use either external forces or sheath flow to focus particulate samples, and face the challenges of complex instrumentation design and limited throughput. The burgeoning field of inertial microfluidics brings single-position focusing functionality ...