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Generation of Monodisperse Particles by Using Microfluidics: Control over Size, Shape, and Composition


  • E.K. acknowledges the Canada Research Chair Fund. Work by P.G., D.B.W., I.G., and G.M.W. was supported by the NIH (GM65364), DoE (DE-FG02-OOER45852), and DARPA, and they used the MRSEC Shared Facilities supported by the NSF under Award No. DMR-9809363. H.A.S. thanks Unilever and Harvard MRSEC (DMR-0213805) for support. P.G. acknowledges the Foundation for Polish Science for a postdoctoral fellowship. D.B.W. thanks the NIH for a postdoctoral fellowship (GM067445). We thank Professor W. C. W Chan for help with the synthesis of CdSe QDs.


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Small-scale engineering: A new strategy for the production of monodisperse colloid particles with precise control of their size, shape, and composition has been developed. Highly monodisperse liquid droplets are formed by using a microfluidic device. The droplets are shaped in a microchannel (spheres, disks, and rods; see images) and solidified in situ by either polymerization or thermal setting.