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October 17th, 2007

Push-button nanotechnology

As Bubba in Forrest Gump pointed out, there are lots of possibilities with shrimps: "You can barbecue it, boil it, broil it, bake it ... there's ah... pineapple shrimp, lemon shrimp, pepper shrimp, shrimp soup, shrimp stew, shrimp salad, shrimp burger, shrimp sandwich...that's about it." It sounds pretty much the same when you listen to researchers talking about the numerous strategies for synthesizing nanoparticles - you can barbecue it, boil it, broil it, bake it (well, kind of) ... there's ah... sonochemical processing, cavitation processing, microemulsion processing, and high-energy ball milling. The problem is that, no matter what route you choose, nanoparticle synthesis is normally quite a tricky process that requires a lot of skill and expertise on the part of the chemist to obtain good quality particles of well controlled size and shape. Researchers in the UK tried to see if they could automate the whole procedure by preparing the nanoparticles in automated chemical reactors under the direct control of a computer. If successful, such reactors would find numerous applications in nanoscience and nanotechnology, especially in the areas of photonics, optoelectronics, bio-analysis and targeted drug delivery.


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