(485f) Multiphase Microfluidic Systems for Creating Structured Materials

Microscale segmented flows have been extensively used either by taking advantage of their favorable transport properties, i.e. enhanced mixing and reduced axial dispersion [1-5], or by creating and retaining unique fluid phase distributions. Examples of the latter are the formation of monodisperse particles and foams.

In this talk, we introduce a new strategy that is aimed at assembling structured materials from segmented flow in a massively scaled microfluidic architecture. Manipulating the communication between neighboring flow channels allows the formation of complex fluids (and solids) with either an irregular or the emergence of a regular microstructure. We will particularly focus on tailoring bulk materials with non-isotropic bulk properties.

References:

[1] Kreutzer M.T., Guenther A., Jensen K.F., Anal. Chem. 80 (5), 1558-1567, 2008.

[2] Muradoglu M., Guenther A., Stone H.A., Phys. Fluids 19 (7), 072109, 2007

[3] Guenther, A., Jensen, K.F., Lab Chip, 6, 1487-1503, 2006.

[4] Guenther, A., Jhunjhunwala, M., Thalmann, M., Schmidt, M.A., and Jensen, K.F., Langmuir, 21 (4), 1547-1555, 2005.

[5] Yen, B.K.H., Guenther, A., Schmidt, M.A., Jensen, K.F., Bawendi, M.G., Angewandte Chemie, Int. Ed., 44 (34), 2005.