Osuji, Chinedum - Yale University - Department of Chemical & Environmental Engineering

个人简介

Ph.D., Massachusetts Institute of Technology B.S., Cornell University

研究领域

Prof. Osuji's interests are centered on the physics and physical chemistry of soft matter - studying and elucidating self-assembly and basic structure-property relationships of colloids, liquid crystals, polymers and biological materials. Research in the Osuji lab is focused on structure and dynamics of soft materials, i.e. on the relationship between the microstructure of polymer melts, surfactant phases, liquid crystals and colloidal gels and their dynamics. He works on structure-property relationships in liquid crystalline block copolymers, directed self-assembly of surfactants and polymers, rheology of colloidal gels and microfluidic platforms for studying multiphase flows. His expertise is in electron microscopy, x-ray scattering and rheology. Highlights of ongoing work include the development of self-assembled polymer nanocomposites for use as active layers in organic solar cells, the design of microfluidic mimics of vascular structures for model studies of red blood cell mechanics, and elucidation of shear thickening and aging behavior in particulate suspensions and gels. These efforts have important implications in energy generation, the design of next generation microfluidic bio-assays and the design and processing of complex fluids such as toner inks and cosmetics.

近期论文

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Thin polymer films with continuous vertically aligned 1-nm pores fabricated by soft confinement. X. Feng, S. Nejati, M. G. Cowan, M. E. Tousley, B. R. Wiesenauer, R. D. Noble, M. Elimelech, D. L. Gin, C. O. Osuji. ACS Nano 10 (1), 150-158 (2016). Magnetic Alignment of Block Copolymer Microdomains by Intrinsic Chain Anisotropy. Y. Rokhlenko, K. Zhang, M. Gopinadhan, S. R. Larson, P. W. Majewski, K. G. Yager, P. Gopalan, C. S. O'Hern, C. O. Osuji. Physical Review Letters 115, 258302 (2015). Scalable Fabrication of Polymer Membranes with Vertically Aligned 1-nm Pores by Magnetic Field Directed Self-Assembly. X. Feng, M. E. Tousley, M. G. Cowan, B. R. Wiesenauer, S. Nejati, Y. Choo, R. D. Noble, M. Elimelech, D. L. Gin, C. O. Osuji. ACS Nano 8 (12), 11977–11986 (2014). Thermally Switchable Aligned Nanopores by Magnetic-Field Directed Self-Assembly of Block Copolymers. M. Gopinadhan, P. Deshmukh, Y. Choo, P. W. Majewski, O. Bakajin, M. Elimelech, R. M. Kasi, C. O. Osuji. Advanced Materials 26 (30), 5148-5154 (2014). Continuous Equilibrated Growth of Ordered Block Copolymer Thin Films by Electrospray Deposition. Hu, H., S. Rangou, V. Filiz, M. Kim, P. Gopalan, A. Avgeropolous, and C.O. Osuji. In press, ACS Nano (2013). Order-disorder transition and alignment dynamics of a block copolymer under high magnetic fields by in situ x-ray scattering. M. Gopinadhan, P. W. Majewski, C. O. Osuji. Physical Review Letters 110, 078301 (2013). Directed Self-Assembly of Hybrid Oxide/Polymer Core-Shell Nanowires with Transport Optimized Morphology for Photovoltaics. S. Zhang, C. I. Pelligra, G. Keskar, J. Jiang, P. W. Majewski, A. D. Taylor, S. Ismail-Beigi, L. D. Pfefferle, C. O. Osuji. Advanced Materials, 24 (1), 82-87 (2012). Anisotropic ionic conductivity in block copolymer membranes by magnetic field alignment. P. W. Majewski, M. Gopinadhan, W-S. Jang, J. L. Lutkenhaus, C. O. Osuji. Journal of the American Chemical Society 132 (49), pp 1751617522 (2010). Nanocomposites of Vertically Aligned SWNTs by Magnetic Alignment and Polymerization of a Lyotropic Precursor. M. S. Mauter, M. Elimelech, C. O. Osuji. ACS Nano 4 (11), pp 66516658 (2010). Time resolved viscoelastic properties during structural arrest and aging of a colloidal glass. A. Negi and C. O. Osuji. Phys. Rev. E. 82, 031404 (2010). Dynamics of a colloidal glass during stress-mediated structural arrest. A.Negi and C. O. Osuji. Europhysics Letters, 90, 28003 (2010). Shear Thickening and Scaling of the Elastic Modulus in a Fractal Colloidal System with Attractive Interactions. C. O. Osuji, C. Kim and D. A. Weitz. Phys. Rev. E. 77, 060402 (2008).