Egg-carton-style patterning keeps charged nanoparticles in place and suitable for a wide range of ap
Egg-carton-style patterning keeps charged nanoparticles in place and suitable for a wide range of applicationsResearchers at the University of Michigan and Seoul National University of Science and Technology have devised a new method for manufacturing devices that require precisely sized and positioned micro- and nanoscale particles. The technique is suitable for a wide array of assembly of micro- and nanoscale objects, and useful for electronic devices, and biological applications. “It’s very hard to regulate things in the microscopic and nano-scale. You want the particles to sit there, and they won’t,” said Jay Guo, project leader and professor of electrical engineering and computer science. “We found a way to sort and localize large quantities of particles, and we can do it in a very scalable fashion.”With this ability, engineers would be able to more efficiently manufacture and assemble photonic crystals, filtration devices and biological assays, create more sensitive sensing devices, and much more. Guo has been working in the area of nanomanufacturing for decades, beginning with his work on roll-to-roll nanoimprint lithography. He switched to the current methodology of nanopatterning relying only on a sliced silicon wafer because of its relative simplicity and speed.Read more. -- source link
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