Abstract: Multiphase Microfluidic Systems for Creating Structured Materials (2008 Annual Meeting)

Wednesday, November 19, 2008: 1:45 PM

Room 104-B (Pennsylvania Convention Center)

Axel Guenther, Dept. of Mechanical and Ind. Engineering, Inst. of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada

Lian Leng, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada

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.

Extended Abstract: File Not Uploaded

See more of this Session: Microfluidics and Small-Scale Flows III
See more of this Group/Topical: Engineering Sciences and Fundamentals