Velev Research Group
Department of Chemical and Biomolecular Engineering North Carolina State University
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Publications

2011

Ashley, C. E.; Dunphy, D. R.; Jiang, Z.; Carnes, E. C.; Yuan, Z.; Petsev, D. N.; Atanassov, P. B.; Velev, O. D.; Sprung, M.; Wang, J.; Peabody, D. S.; Brinker, C. J. 1. Convective assembly of 2D lattices of virus-like particles visualized by in-situ grazing-incidence small-angle X-ray scattering. Small 2011, 7, No. 8, 1043–1050.

Hoeger, I.; Rojas, O. J.; Efimenko, K.; Velev, O. D.; Kelley, S. S. Ultrathin film coatings of aligned cellulose nanocrystals from a convective-shear assembly system and their surface mechanical properties. Soft Matter 2011, 7, 1957–1967.

So, J.-H.; Koo, H.-J.; Dickey, M. D.; Velev, O. D.; Ionic Current Rectification in Soft Matter Diodes with Liquid Metal Electrodes. Advanced Functional Materials Accepted.

Koo, H.-J.; So, J.-H.; Dickey, M. D.; Velev, O. D. Towards All-Soft Matter Circuits: Prototypes of Quasi-Liquid Devices with Memristor Characteristics. Advanced Materials 2011, 23, 3559–3564.

Koo, H.-J.; Chang, S. T.; Slocik, J. M.; Naik, R. R.; Velev, O. D. Aqueous soft matter based photovoltaic devices. Journal of Materials Chemistry 2011, 21, 72–79.

Lam, S.; Blanco, E.; Smoukov, S.; Velikov, K. P.; Velev, O. D. Magnetically Responsive Pickering Foams. Journal of the American Chemical Society 2011, 133, 13856–13859.

Melvin, E. M.; Moore, B. R.; Gilchrist, K. H.; Grego, S.; Velev, O. D. On-chip collection of particles and cells by AC electroosmotic pumping and dielectrophoresis using asymmetric microelectrodes. Biomicrofluidics 2011, 5, 034113.

2010

Brandy, M.L.; Cayre, O.J.; Fakhrullin, R.F.; Velev, O.D.; Paunov, V.N. Directed assembly of yeast cells into living celloidosomes by bubble templating. Soft Matter 2010, 6, 3494–3498.

Koo, H.-J.; Chang, S. T.; Velev, O. D. Ion-current diode with aqueous gel/SiO2 nanofilm interfaces. Small 2010, 6, 1393–1397.

Kleinert, J.; Kim, S.; Velev, O. D. Electric-field-assisted convective assembly of colloidal crystal coatings. Langmuir 2010, 26, 10380–10385.

Fakhrullin, R. F.; Brandy, M.-L.; Cayre, O. J.; Velev, O. D.; Paunov, V. N. Live celloidosome structures based on the assembly of individual cells by colloid interactions. Physical Chemistry Chemical Physics 2010, 12, 11912–11922.

Gangwal, S.; Pawar, A.; Kretzschmar, I.; Velev, O. D. Programmed assembly of metallodielectric patchy particles in external AC electric fields. Soft Matter 2010, 6, 1413–1418.

Gupta, S.; Alargova, R. G.; Kilpatrick, P. K.; Velev, O. D. On-chip dielectrophoretic coassembly of live cells and particles into responsive biomaterials. Langmuir 2010, 26, 3441–3452.

Goyal, A.; Hall, C. K.; Velev, O. D. Bicontinuous gels formed by self-assembly of dipolar colloid particles. Soft Matter 2010, 6, 480-484.

Goyal, A.; Hall, C. K.; Velev, O. D. Self-assembly in binary mixtures of dipolar colloids: Molecular dynamics simulations. Journal of Chemical Physics 2010, 133, 064511/1–10.

Rastogi, V.; Velikov, K. P.; Velev, O. D. Microfluidic characterization of sustained solute release from porous supraparticles. Physical Chemistry Chemical Physics 2010, 12, 11975–11983.

Rastogi, V.; Garcia, A. A.; Marquez, M.; Velev, O. D. Anisotropic particle synthesis inside droplet templates on superhydrophobic surfaces. Macromolecular Rapid Communications 2010, 31, 190–195.

2009

Kim, S.; Barraza, H.; Velev, O. D. Intense and selective coloration of foams stabilized with functionalized particles. Journal of Materials Chemistry 2009, 19, 7043–7049.

Chang, S. T.; Uçar, A. B.; Swindlehurst, G. R.; Bradley, R. O.; Renk, F. J.; Velev, O. D. Materials of controlled shape and stiffness with photocurable microfluidic endoskeleton. Advanced Materials 2009, 21, 2803–2807.

Jerrim, L. B.; Velev, O. D. Deposition of coatings from live yeast cells and large particles by "convective-sedimentation" assembly. Langmuir 2009, 25, 5692–5702.

Velev, O. D.; Gupta, S. Materials fabricated by micro- and nanoparticle assembly - The challenging path from science to engineering. Advanced Materials 2009, 21, 1897–1905.

Smoukov, S. K.; Gangwal, S.; Marquez, M.; Velev, O. D. Reconfigurable responsive structures assembled from magnetic Janus particles. Soft Matter 2009, 5, 1285–1292.

Velev, O. D.; Gangwal, S.; Petsev, D. N. Particle-localized AC and DC manipulation and electrokinetics. Annual Reports on the Progress of Chemistry, Section C: Physical Chemistry 2009, 105, 213–246.

2008

Rastogi, V.; Melle, S.; Calderon, O. G.; Garcia, A. A.; Marquez, M.; Velev, O. D. Synthesis of light-diffracting assemblies from microspheres and nanoparticles in droplets on a superhydrophobic surface. Advanced Materials 2008, 20, 4263–4268.

Gangwal, S.; Cayre, O. J.; Velev, O. D. Dielectrophoretic assembly of metallodielectric Janus particles in AC electric fields. Langmuir 2008, 24, 13312–13320.

Budhlall, B. M.; Marquez, M.; Velev, O. D. Microwave, photo- and thermally responsive PNIPAm-gold nanoparticle microgels. Langmuir 2008, 24, 11959–11966.

Wege, H. A.; Kim, S.; Paunov, V. N.; Zhong, Q. X.; Velev, O. D. Long-term stabilization of foams and emulsions with in-situ formed microparticles from hydrophobic cellulose. Langmuir 2008, 24, 9245–9253.

Gupta, S.; Alargova, R. G.; Kilpatrick, P. K.; Velev, O. D. On-chip electric field driven assembly of biocomposites from live cells and functionalized particles. Soft Matter 2008, 4, 726–730.

Goyal, A.; Hall, C. K.; Velev, O. D. Phase diagram for stimulus-responsive materials containing dipolar colloidal particles. Physical Review E 2008, 77, 031401.

Gangwal, S.; Cayre, O. J.; Bazant, M. Z.; Velev, O. D. Physical Review Letters 2008, 100, 058302.

Kuncicky, D. M.; Velev, O. D. Surface-guided templating of particle assemblies inside drying sessile droplets. Langmuir 2008, 24, 1371–1380.

Chang, S. T. Beaumont, E. Petsev, D. N. Velev, O. D. Remotely powered distributed microfluidic pumps and mixers based on miniature diodes. Lab on a Chip 2008, 8, 117–124.

2007

Rastogi, V.; Velev, O. D. Development and evaluation of realistic microbioassays in freely suspended droplets on a chip. Biomicrofluidics 2007, 1, 014107.

Wege, H. A. Dyab, A. K. F.; Velev, O. D.; Paunov, V. N. Fabrication of magnetically-functionalized lens- and donut-shaped microparticles by a surface-formation technique. Physical Chemistry Chemical Physics 2007, 9, 6300–6303.

Prevo, B. G.; Kuncicky, D. M.; Velev, O. D. Engineered deposition of coatings from nano- and micro-particles: A brief review of convective assembly at high volume fraction. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2007, 311, 2–10.

Cayre, O. J.; Chang, S. T.; Velev, O. D. Polyelectrolyte diode: Nonlinear current response of a junction between aqueous ionic gels. Journal of the American Chemical Society 2007, 129, 10801–10806.

Yuan, Z. Petsev, D. N., Prevo, B. G.; Velev, O. D.; Atanassov, P. Two-dimensional nanoparticle arrays derived from ferritin monolayers. Langmuir 2007, 23, 5498–5504.

Gupta, S.; Huda, S.; Kilpatrick, P. K.; Velev, O. D. Characterization and optimization of gold nanoparticle-based silver-enhanced immunoassays. Analytical Chemistry 2007, 79, 3810–3820.

Zhong, Q. X.; Daubert, C. R.; Velev, O. D. Physicochemical variables affecting the rheology and microstructure of rennet casein gels. Journal of Agricultural and Food Chemistry 2007, 55, 2688–2697.

Chang, S. T.; Paunov, V. N.; Petsev, D. N.; Velev, O. D. Remotely powered self-propelling particles and micropumps based on miniature diodes. Nature Materials 2007, 6, 235–240.

Prevo, B. G.; Hon, E. W.; Velev, O. D. Assembly and characterization of colloid-based antireflective coatings on multicrystalline silicon solar cells. Journal of Materials Chemistry 2007, 17, 791–799.

Kuncicky, D. M.; Bose, K.; Costa, K. D.; Velev, O. D. Sessile droplet templating of miniature porous hemispheres from colloid crystals. Chemistry of Materials 2007, 19, 141–143.

2006

Kuncicky, D. M.; Naik, R. R.; Velev, O. D. Rapid deposition and long-range alignment of nanocoatings and arrays of electrically conductive wires from tobacco mosaic virus. Small 2006, 2, 1462–1466.

Velev, O. D.; Bhatt, K. H. On-chip micromanipulation and assembly of colloidal particles by electric fields. Soft Matter 2006, 2, 738–750.

Koo, H. Y.; Chang, S. T. Choi, W. S.; Park, J. H.; Kim, D. Y., Velev, O. D. Emulsion-based synthesis of reversibly swellable, magnetic nanoparticle-embedded polymer microcapsules. Chemistry of Materials 2006, 18, 3308–3313.

Velev, O. D. Self-assembly of unusual nanoparticle crystals. Science 2006, 312, 376–377.

Kuncicky, D. M.; Prevo, B. G.; Velev, O. D. Controlled assembly of SERS substrates templated by colloidal crystal films. Journal of Materials Chemistry 2006, 16, 1207–1211.

Chang, S. T.; Velev, O. D. Evaporation-induced particle microseparations inside droplets floating on a chip. Langmuir 2006, 22, 1459–1468.

Alargova, R. G.; Paunov, V. N.; Velev, O. D. Formation of polymer microrods in shear flow by emulsification - Solvent attrition mechanism. Langmuir 2006, 22, 765–774.

2005

Prevo, B. G.; Hwang, Y; Velev, O. D. Convective assembly of antireflective silica coatings with controlled thickness and refractive index. Chemistry of Materials 2005, 17, 3642–3651.

Bhatt, K. H.; Grego, S.; Velev, O. D. An AC electrokinetic technique for collection and concentration of particles and cells on patterned electrodes. Langmuir 2005, 21, 6603–6612.

Kuncicky, D. M.; Christesen, S. D.; Velev, O. D. Role of the micro- and nanostructure in the performance of surface-enhanced Raman scattering substrates assembled from gold nanoparticles. Applied Spectroscopy 2005, 59, 401–409.

Finkel, N. H.; Prevo, B. G., Velev, O. D.; He. L. Ordered silicon nanocavity arrays in surface-assisted desorption/ionization mass spectrometry. Analytical Chemistry 2005, 77, 1088–1095.

Millman, J. R.; Bhatt, K. H.; Prevo, B. G.; Velev, O. D. Anisotropic particle synthesis in dielectrophoretically controlled microdroplet reactors. Nature Materials 2005, 4, 98–102.

Prevo, B. G.; Fuller, J. C.; Velev, O. D. Rapid deposition of gold nanoparticle films with controlled thickness and structure by convective assembly. Chemistry of Materials 2005, 17, 28–35.

2004

Alargova, R. G.; Warhadpande, D. S.; Paunov, V. N.; Velev, O. D. Foam superstabilization by polymer microrods. Langmuir 2004, 20, 10371–10374.

Alargova, R. G.; Bhatt, K. H.; Paunov, V. N.; Velev, O. D. Scalable synthesis of a new class of polymer microrods by a liquid-liquid dispersion technique. Advanced Materials 2004, 16, 1653–1657.

Zhong, Q. X.; Daubert, C. R.; Velev, O. D. Cooling effects on a model rennet casein gel system: Part II. Permeability and microscopy. Langmuir 2004, 20, 7406–7411.

Zhong, Q. X.; Daubert, C. R.; Velev, O. D. Cooling effects on a model rennet casein gel system: Part I. Rheological characterization. Langmuir 2004, 20, 7399–7405.

Noble, P. F.; Cayre, O. J.; Alargova, R. G.; Velev, O. D.; Paunov, V. N. Fabrication of "hairy" colloidosomes with shells of polymeric microrods. Journal of the American Chemical Society 2004, 126, 8092–8093.

Prevo, B. G.; Velev, O. D. Controlled, rapid deposition of structured coatings from micro- and nanoparticle suspensions. Langmuir 2004, 20, 2099–2107.

Bhatt, K. H.; Velev, O. D. Control and modeling of the dielectrophoretic assembly of on-chip nanoparticle wires. Langmuir 2004, 20, 467–476.

2003

Velev, O. D.; Prevo, B. G.; Bhatt, K. H. On-chip manipulation of free droplets. Nature 2003, 426, 515–516.

Cayre, O. J.; Paunov, V. N.; Velev, O. D. Fabrication of asymmetrically coated colloid particles by microcontact printing techniques. Journal of Materials Chemistry 2003, 13, 2445–2450.

Cayre, O. J.; Paunov, V. N.; Velev, O. D. Fabrication of dipolar colloid particles by microcontact printing. Chemical Communications 2003, 2296–2297.

Tang, J.; Gao, B.; Geng, H. Z.; Velev, O. D.; Qin, L. C.; Zhou, O. Assembly of ID nanostructures into sub-micrometer diameter fibrils with controlled and variable length by dielectrophoresis. Advanced Materials 2003, 15, 1352–1355.

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Velev Research Group · Chemical & Biomolecular Engineering · NC State University · 1050 Engineering Building I · Campus Box 7905 · Raleigh, NC 27695-7905 · USA · +1 919 513 4648