Ingrid Fritsch, a professor of chemistry and biochemistry at the University of Arkansas, developed a new method—called magnetohydrodynamics—of using magnetic force to move fluids down small channels the width of a human hair. It is unlike current methods using electrokinetic pumping, centrifugal force, and mechanical pumping with microfluidic devices. Fritsch found that when the electromagnetic field is reversed in magnetohydrodynamics, the fluid flow reverses without need of mechanical manipulation. The finding may help researchers develop so called "lab on a chip" medical devices.
Sales of semiconductors, interconnects, and other electronic components in North America were flat through the second quarter of 2015, reflecting a pattern that’s been repeating itself for several years.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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