(30) X. Liu, W. Liu, A. J. Carr, D. Santiago Vazquez, D. Nykypanchuk, P. W. Majewski, A. F. Routh, S. R. Bhatia. Stratification During Evaporative Assembly of Multicomponent Nanoparticle Films. Journal of Colloid and Interface Science 2018, 515, 70-77., . DOI: 10.1016/j.jcis.2018.01.005
(29) G. Kaufman, K. A. Montejo, A. Michaut, P. W. Majewski, C. O. Osuji. Photoresponsive and Magnetoresponsive Graphene Oxide Microcapsules Fabricated by Droplet Microfluidics. ACS Applied Materials & Interfaces 2017, 9 (50), 44192-44198, . DOI: 10.1021/acsami.7b14448
(28) Y. Choo, P. W. Majewski, M. Fukuto, C. O. Osuji, K. G. Yager. Pathway-engineering for highly-aligned block copolymer arrays. Nanoscale 2018, Advance Article, . DOI: 10.1039/C7NR06069F
(27) Y. Rokhlenko, P. W. Majewski, S. R. Larson, P. Gopalan, K. G. Yager, C. O. Osuji. Implications of Grain Size Variation in Magnetic Field Alignment of Block Copolymer Blends. ACS Macro Letters 2017, 404-409. DOI: 10.1021/acsmacrolett.7b00036
(26) Atikur Rahman, Pawel W. Majewski, Gregory Doerk and Kevin G Yager. Non-native three-dimensional block copolymers. Nature Communications 2016, 7, 13988. DOI: 10.1038/ncomms13988
(25) Pawel W Majewski and Kevin G Yager. Rapid Ordering of Block Copolymer Thin Films. Journal of Physics: Condensed Matter 2016, 28 (40), 403002. DOI: 10.1088/0953-8984/28/40/403002
Spatiotemporal character of various DSA methods.
(24) Majewski, P. W.; Yager, K. G. Reordering Transitions during Annealing of Block Copolymer Cylinder Phases. Soft Matter 2016, 12 (1), 281–294 DOI: 10.1039/C5SM02441B
SEM of cylinder-forming BCP film during the reorientation transition.
(23) Rokhlenko, Y.; Gopinadhan, M.; Osuji, C. O.; Zhang, K.; O’Hern, C. S.; Larson, S. R.; Gopalan, P.; Majewski, P. W.; Yager, K. G. Magnetic Alignment of Block Copolymer Microdomains by Intrinsic Chain Anisotropy. Phys. Rev. Lett. 2015, 115 (25), 258302. DOI: 10.1103/PhysRevLett.115.258302
Magnetic alignment of low-molecular PS-b-4VP lamellar block copolymer.
(22) Majewski, P. W.; Yager, K. G. Latent Alignment in Pathway-Dependent Ordering of Block Copolymer Thin Films. Nano Lett. 2015, 15 (8), 5221–5228 DOI: 10.1021/acs.nanolett.5b01463.
BCP Ordering pathways
(21) Majewski, P. W.; Rahman, A.; Black, C. T.; Yager, K. G. Arbitrary Lattice Symmetries via Block Copolymer Nanomeshes. Nat Commun 2015, 6 DOI: 10.1038/ncomms8448.
Hexagonal tri-layered Pt nanowire mesh templated from a BCP.
(20) Majewski, P. W.; Yager, K. G. Block Copolymer Response to Photothermal Stress Fields. Macromolecules 2015, 48 (13), 4591–4598 DOI: 10.1021/acs.macromol.5b00955.
Photothermal shearing of block-copolymer thin films.
(19) Majewski, P. W.; Yager, K. G. Millisecond Ordering of Block Copolymer Films via Photothermal Gradients. ACS Nano 2015, 9 (4), 3896–3906 DOI: 10.1021/nn5071827.
Millisecond ordering of BCP films.
(18) Yager, K. G.; Majewski, P. W. Metrics of Graininess: Robust Quantification of Grain Count from the Non-Uniformity of Scattering Rings. Journal of Applied Crystallography 2014, 47 (6), 1855–1865 DOI: 10.1107/S1600576714020822.
Grain-size quantification by analysis of azimuthal scattering distribution.
(17) Gopinadhan, M.; Deshmukh, P.; Choo, Y.; Majewski, P. W.; Bakajin, O.; Elimelech, M.; Kasi, R. M.; Osuji, C. O. Thermally Switchable Aligned Nanopores by Magnetic-Field Directed Self-Assembly of Block Copolymers. Adv. Mater. 2014, 26 (30), 5148–5154 DOI: 10.1002/adma.201401569.
Thermally-switchable BCP membrane.
(16) Tran, H.; Gopinadhan, M.; Majewski, P. W.; Shade, R.; Steffes, V.; Osuji, C. O.; Campos, L. M. Monoliths of Semiconducting Block Copolymers by Magnetic Alignment. ACS Nano 2013, 7 (6), 5514–5521 DOI: 10.1021/nn401725a.
Magnetically-ordered BCP-perylene conjugates.
(15) Pelligra, C. I.; Majewski, P. W.; Osuji, C. O. Large Area Vertical Alignment of ZnO Nanowires in Semiconducting Polymer Thin Films Directed by Magnetic Fields. Nanoscale 2013 DOI: 10.1039/C3NR03119E.
Large area magnetic alignment of Co-doped ZnO nanowires.
(14) Majewski, P. W.; Gopinadhan, M.; Osuji, C. O. Understanding Anisotropic Transport in Self-Assembled Membranes and Maximizing Ionic Conductivity by Microstructure Alignment. Soft Matter 2013, 9 (29), 7106–7116 DOI: 10.1039/C3SM50320H.
Anisotropic ion transport in self-assembled membranes.
(13) Gopinadhan, M.; Majewski, P. W.; Choo, Y.; Osuji, C. O. Order-Disorder Transition and Alignment Dynamics of a Block Copolymer Under High Magnetic Fields by In Situ X-Ray Scattering. Phys. Rev. Lett. 2013, 110 (7), 78301 DOI: 10.1103/PhysRevLett.110.078301.
Alignment dynamics of a BCP under high magnetic fields.
(12) Zhang, S.; Pelligra, C. I.; Keskar, G.; Jiang, J.; Majewski, P. W.; Taylor, A. D.; Ismail-Beigi, S.; Pfefferle, L. D.; Osuji, C. O. Directed Self-Assembly of Hybrid Oxide/Polymer Core/Shell Nanowires with Transport Optimized Morphology for Photovoltaics. Adv. Mater. 2012, 24 (1), 82–87 DOI: 10.1002/adma.201103708.
Directed self-assembly of hybrid oxide/polymer core/shell nanowires.
(11) Majewski, P. W.; Gopinadhan, M.; Osuji, C. O. Magnetic Field Alignment of Block Copolymers and Polymer Nanocomposites: Scalable Microstructure Control in Functional Soft Materials. J. Polym. Sci. B Polym. Phys. 2012, 50 (1), 2–8 DOI: 10.1002/polb.22382.
Field –aligned block-copolymer membrane.
(10) Kijewska, K.; Blanchard, G. J.; Szlachetko, J.; Stolarski, J.; Kisiel, A.; Michalska, A.; Maksymiuk, K.; Pisarek, M.; Majewski, P.; Krysiński, P.; Mazur, M. Photopolymerized Polypyrrole Microvessels. Chem. Eur. J. 2012, 18 (1), 310–320 DOI: 10.1002/chem.201101400.
Photo-polymerized polypyrrole microvessels.
(9) Gopinadhan, M.; Majewski, P. W.; Beach, E. S.; Osuji, C. O. Magnetic Field Alignment of a Diblock Copolymer Using a Supramolecular Route. ACS Macro Lett. 2012, 1 (1), 184–189 DOI: 10.1021/mz2001059.
Magnetically-aligned BCP complexed by small liquid crystal molecules.
(8) Zhang, S.; Pelligra, C. I.; Keskar, G.; Majewski, P. W.; Ren, F.; Pfefferle, L. D.; Osuji, C. O. Liquid Crystalline Order and Magnetocrystalline Anisotropy in Magnetically Doped Semiconducting ZnO Nanowires. ACS Nano 2011, 5 (10), 8357–8364 DOI: 10.1021/nn203070d.
Micrographs of field-aligned magnetically doped semiconducting ZnO nanowires.
(7) Zhang, S.; Majewski, P. W.; Keskar, G.; Pfefferle, L. D.; Osuji, C. O. Lyotropic Self-Assembly of High-Aspect-Ratio Semiconductor Nanowires of Single-Crystal ZnO. Langmuir 2011, 27 (18), 11616–11621 DOI: 10.1021/la200703u.
Liquid crystalline textures in lyotropic self-assembled ZnO nanowires.
(6) Majewski, P. W.; Osuji, C. O. Controlled Alignment of Lamellar Lyotropic Mesophases by Rotation in a Magnetic Field. Langmuir 2010, 26, 8737–8742 DOI: 10.1021/la100285j.
Alignment of lamellar lyotropic mesophases by rotation in a magnetic field.
(5) Majewski, P. W.; Gopinadhan, M.; Jang, W.-S.; Lutkenhaus, J. L.; Osuji, C. O. Anisotropic Ionic Conductivity in Block Copolymer Membranes by Magnetic Field Alignment. J. Am. Chem. Soc. 2010, 132 (49), 17516–17522 DOI: 10.1021/ja107309p.
Anisotropic ionic conductivity in block copolymer membranes.
(4) Gopinadhan, M.; Majewski, P. W.; Osuji, C. O. Facile Alignment of Amorphous Poly(ethylene Oxide) Microdomains in a Liquid Crystalline Block Copolymer Using Magnetic Fields: Toward Ordered Electrolyte Membranes. Macromolecules 2010, 43, 3286–3293 DOI: 10.1021/ma9026349.
Schematic representation of X-ray scattering patterns under orthogonal angles of incidence.
(3) Majewski, P. W.; Osuji, C. O. Non-Degenerate Magnetic Alignment of Self-Assembled Mesophases. Soft Matter 2009, 5 (18), 3417–3421 DOI: 10.1039/B910705C.
2-D X-ray scattering pattern of magnetically-aligned lamellar mesophase.
(2) Majewski, P.; Krysiński, P. Synthesis, Surface Modifications, and SizeSorting of Mixed Nickel–Zinc Ferrite Colloidal Magnetic Nanoparticles. Chemistry – A European Journal 2008, 14 (26), 7961–7968 DOI: 10.1002/chem.200800369.
Surface modifications and size‐sorting of nickel–zinc ferrite nanoparticles.
(1) Naughton, B. T.; Majewski, P.; Clarke, D. R. Magnetic Properties of Nickel–Zinc Ferrite Toroids Prepared from Nanoparticles. Journal of the American Ceramic Society 2007, 90 (11), 3547–3553 DOI: 10.1111/j.1551-2916.2007.01981.x.
Toroids prepared from nickel–zinc ferrite nanoparticles.