This study presents a theoretical investigation of a flexible, electromagnetically controlled microchannel transport system (i.e., controllable micropump) utilizing a soft magnetorheological elastomer. A two-dimensional time-dependent model using a coupled fluid-solid-magnetic analysis is developed to conduct a parametric study on a system which consists of a flexible channel and valves. Effect...

Introduction MicroChannel Fabrication Experimental Apparatus and Methodology Results and Discussion Summary and Conclusions CHAPTER 4 MICROPIV MEASUREMENT OF TURBULENT FLOW IN RECTANGULAR MICROCHANNELS WITH VARYING AS­ PECT RATIOS Abstract Introduction MicroChannel Fabrication Experimental Methodology Experimental Setup Measurement Error Results and Discussion Summary and Conclusions CHAPTER 5 ...

Thermal management has become a critical issue for high heat flux electronics and energy systems. Integrated two-phase microchannel liquid-cooling technology has been envisioned as a promising solution, but with great challenges in flow instability. In this work, silicon nanowires were synthesized in situ in parallel silicon microchannel arrays for the first time to suppress the flow instabilit...

This paper describes the heat and mass transfer in a square microchannel that is heated from one side. This microchannel represents a reaction channel in a microreactor that is used to study the kinetics of the catalytic partial oxidation of methane. The microchannel is contained in a silicon wafer and is covered by a thin silicon sheet. At the top side of this sheet, heating elements are prese...

Microparticle separation and concentration based on size has become indispensable in many biomedical and environmental applications. In this paper we describe a passive microfluidic device with spiral microchannel geometry for complete separation of particles. The design takes advantage of the inertial lift and viscous drag forces acting on particles of various sizes to achieve differential mig...

This report discusses the method for the fabrication of microchannels. Microchannel production is a two step process. First, soft photolithography methods are implemented to fabricate a reusable mold. The mold is then used to create the microchannel, which consists of polydimethylsiloxane, or PDMS, and glass. Bio-related applications are also discussed.

This multicenter clinical trial of platform-switched laser-microchannel implants supports findings from a previous preclinical trial. Previous information indicated that an interimplant distance narrower than 3 mm would result in decrease in the crestal bone level, but the results of this investigation suggest that a more optimistic clinical result can be anticipated for implants and abutments ...

Neurally controlled prosthetics that cosmetically and functionally mimic amputated limbs remain a clinical need because state of the art neural prosthetics only provide a fraction of a natural limb's functionality. Here, we report on the fabrication and capability of polydimethylsiloxane (PDMS) and epoxy-based SU-8 photoresist microchannel scaffolds to serve as viable constructs for peripheral ...

The electrostatic force required for the driving of liquid droplet injected in a microchannel was studied to obtain the guiding principle to reduce the driving voltage of waveguide optical switch based on the movement of droplet. We analytically calculated the relation between the threshold voltage and velocity of droplet and the surface roughness of microchannel, and clarified some unconfirmed...

Single nanoparticle (NP) collisions technique has been widely employed in electrocatalysis. However, the short collision duration of single NPs hinders further improvement their electrocatalytic performance. Here, to increase dynamic electron tunneling region, enhanced near-wall hindered diffusion is introduced stochastic process by coupling a Au ultramicroelectrode (UME) with confined microcha...