Micro flow field fabrication

Lu and Wang [48] have reported that by using stainless steel plates as bipolar plates (electrodes) with the flow field machined with photochemical etching technology a micro-DMFC produce maximum power density of 62.5 mW cm" at 40°C and 100 mW cm at 60°C at atmospheric pressure. The active electrode area is only 1.625 cm. The power generated by the stainless steel DMFC is double to that of the Si-based DMFC which the authors had previously fabricated. 

Yang, J., Huang, Y., Wuang, X., Becker, EE., and Gascoyne, P.R.C., Cell separation on micro-fabricated electrodes using dielectrophoretic/gravitational field-flow tractionation, Aruil. Cherru, 71, 911, 1999. 

Hot-wire anemometers have traditionally been applied in the fields of experimental fluid mechanics and aerospace engineering. Despite the possibilities to measure real-time physical parameters such as temperature, velocity, flow rates, and shear stress, the spatial resolution is limited to the device dimension. The advent of MicroElectroMe-chanical system (MEMS) and nano-scale thermal sensors has revolutionized the spatial and temporal resolution critical to gain entry into micro-fluidics, micro-circulation, biomedical sciences, and cardiovascular medicine. These micro/nano devices are fabricated with the Semiconductor-... 

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