Hi,
  I have two questions on microfluidic devices. I hope someones here can
give me some hints. Thanks
  1) I was thinking of binding a PDMS layer and a PMMA layer by simply
attaching them together and 80C baking for a couple hours. But there seems
to be some bubbles always when I tried using electrokinetics to rive the
flow
  2) Alternatively I am thinking of attaching two PDMS layers together.
But in this case, I might require one PDMS layer to be submicron thick,
say, 300nm. Is this goal achievable with conventional spin coating
techniques?


>               Best Wishes,

                              Xin Heng
                              Electrical Engineering of Caltech
                              M/C136-93, 1200 E California Blvd
                              Pasadena, CA, 91125, U.S.A

                              office(Moore 337):1-626-395-8870
                              lab(Moore 4):1-626-395-4711
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