Arratia, Paulo EDurian, Douglas JGollub, Jerry P2023-05-222023-05-222007-12-272008-02-14https://repository.upenn.edu/handle/20.500.14332/39842capillaritydropsflow visualizationmicrochannel flownon-Newtonian flowpolymersolutionssoft lithographysurface tensiontwo-phase flowviscosityArticle