Hi Nguyen,

you can use PR reflow to make round channels. Check one of the Dr. Stephen
Quake's papers on microfluidics valves published in Science.

Li

> Hi all,
>
> I want to fabricate a rounded channel from PDMS. Still i have no idea
> about how to fabricate a rounded mold. Is there anyone who can give me
> suggestion? Thank you very much in advance!
>
> Nguyen