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...

Joohan Kim Xianfan Xu Purdue University School of Mechanical Engineering West Lafayette, Indiana 47907 E-mail: [email protected] Abstract. Diffuser micropumps are commonly fabricated using the standard lithography techniques with silicon as the base material. The important components of this type of micropumps are flow-directing diffusers and a moving diaphragm. Different diffuser designs show...

Liquid transportation without employing a bulky power source, often observed in nature, has been an essential prerequisite for smart applications of microfluidic devices. In this report, a leaf-inspired micropump (LIM) which is composed of thermo-responsive stomata-inspired membrane (SIM) and mesophyll-inspired agarose cryogel (MAC) is proposed. The LIM provides a durable flow rate of 30 μl/h ·...

ABSTRACT This paper proposes a new valveless pump using a PZT diaphragm to create a gas jet flow for fluidic applications. The pump was designed and simulated based on transient fluidic analysis with experimental result of PZT diaphragm so that the features of micropump are reliably predicted. The experimental results of a PMMA prototype confirmed the performance of the pump. The fabrication pr...