Orlin D. Velev

List of research publications

Research papers (refereed)

1.     H. Schmidle, S. Jaeger, C. K. Hall, O. D. Velev and S. H. L. Klapp, Soft Matter, in press (2013). Two-dimensional colloidal networks induced by a uni-axial external field.

2.     B. Bharti, G. H. Findenegg and O. D. Velev, Sci. Rep. (Nature), 2:1004 1-4 (2012). Co-assembly of oppositely charged particles into linear clusters and chains of controllable length. DOI: 10.1038/srep01004

3.     C. Frangville, M. Rutkevicius, A. P. Richter, O. D. Velev, S. D. Stoyanov and V. N. Paunov, ChemPhysChem, 13, 4235 – 4243 (2012). Fabrication of environmentally biodegradable lignin nanoparticles. DOI: 10.1002/cphc.201200537

4.     A. B. Ucar and O. D. Velev, Soft Matter, 8, 11232 - 11235 (2012). Microfluidic elastomer composites with switchable Vis-IR transmittance. DOI: 10.1039/c2sm26635k

5.     S. Gupta, P. K. Kilpatrick, E. M. Melvin and O. D. Velev, Lab Chip, 12, 4279 - 4286 (2012). On-chip latex agglutination immunoassay readout by electrochemical impedance spectroscopy. DOI: 10.1039/c2lc40127d

6.     R. Sharma, S.-T. Chang and O. D. Velev, Langmuir, 28, 10128−10135 (2012). Gel-based self-propelling particles get programmed to dance. DOI: 10.1021/la301437f

7.     J. S. Jenkins, M. C. Flickinger and O. D. Velev, J. Colloid Interface Sci., 380, 192–200 (2012). Deposition of composite coatings from particle-particle and particle-yeast cell blends by convective assembly. DOI: 10.1016/j.jcis.2012.04.060

8.     J. Kleinert, S. Kim and O. D. Velev, Langmuir, 28, 3037−3044 (2012). Electric-field-controlled flow in nanoscale-thin wetting films. DOI: 10.1021/la204774s

9.     H. Schmidle, C. K. Hall, O. D. Velev and S. H. L. Klapp, Soft Matter, 8, 1521-1531 (2012). Phase diagram of two-dimensional systems of dipole-like colloids. DOI: 10.1039/c1sm06576a

10.   H.-J. Koo, J.-H. So, M. D. Dickey, O. D. Velev, Adv. Funct. Mater. 22, 625–631 (2012).  Ionic current rectification in soft-matter diodes with liquid-metal electrodes. DOI: 10.1002/adfm.201101967

11.   S. Lam, E. Blanco, S. Smoukov, K. P. Velikov, O. D. Velev, J. Am. Chem. Soc., 133, 13856–13859 (2011). Magnetically responsive Pickering foams. DOI: 10.1021/ja205065w

12.   E. M. Melvin, B. R. Moore, K. H. Gilchrist, S. Grego and O. D. Velev, Biomicrofluidics, 5, 034113 (2011). On-chip collection of particles and cells by AC electroosmotic pumping and dielectrophoresis using asymmetric microelectrodes. DOI: 10.1002/adma.201101257

13.   H.-J. Koo, J.-H. So, M. D. Dickey, O. D. Velev, Adv. Mater, 23, 3559-3564 (2011).  Towards all-soft matter circuits: Prototypes of quasi-liquid devices with memristor characteristics. DOI: 10.1063/1.3620419

14.   H.-J. Koo, S. T. Chang, J. M. Slocik, R. R. Naik  and  O. D. Velev J. Mater. Chem., 21, 72-79 (2011). Aqueous soft matter based photovoltaic devices. DOI: 10.1039/c0jm01820a

15.   C. E. Ashley, D. R. Dunphy, Z. Jiang, E. C. Carnes, Z. Yuan, D. N. Petsev, P. B. Atanassov, O. D. Velev, M. Sprung, J. Wang, D. S. Peabody and C. J. Brinker, Small, 8, 1043–1050 (2011). Convective assembly of 2D lattices of virus-like particles visualized by in-situ grazing-incidence small-angle X-ray scattering. DOI: 10.1002/smll.201001665

16.   I. Hoeger, O. J. Rojas, K. Efimenko, O. D. Velev and S. S. Kelley, Soft Matter, 7, 1957 - 1967 (2011). Ultrathin film coatings of aligned cellulose nanocrystals from a convective-shear assembly system and their surface mechanical properties. DOI: 10.1039/c0sm01113d

17.   V. Rastogi, K. P. Velikov and O. D. Velev, PCCP, 12, 11975 - 11983 (2010). Microfluidic characterization of sustained solute release from porous supraparticles. DOI: 10.1039/c0cp00119h

18.   R. F. Fakhrullin, M.-L. Brandy, O. J. Cayre, O. D. Velev, and V. N. Paunov, PCCP, 12, 11912–11922 (2010).  Live celloidosome structures based on the assembly of individual cells by colloid interactions. DOI: 10.1039/c0cp00131g

19.   A. Goyal, C. K. Hall and O. D. Velev, J. Chem. Phys., 133, 064511/1-10 (2010). Self-assembly in binary mixtures of dipolar colloids: Molecular dynamics simulations. DOI: 10.1063/1.3477985

20.   J. Kleinert, S. Kim, and O. D. Velev, Langmuir, 26, 10380–10385 (2010). Electric-field-assisted convective assembly of colloidal crystal coatings. DOI: 10.1021/la100119m

21.   H.-J. Koo, S.-T. Chang and O. D. Velev, Small, 6, 1393-1397 (2010). Ion-current diode with aqueous Gel/SiO2 nanofilm interfaces. DOI: 10.1002/smll.200902069

22.   S. Gangwal, A. Pawar, I. Kretzschmar and O. D. Velev, Soft Mater, 6, 1413 - 1418 (2010). Programmed assembly of metallodielectric patchy particles in external AC electric fields. DOI: 10.1039/b925713f

23.   S. Gupta, R. G. Alargova, P. K. Kilpatrick and O. D. Velev, Langmuir, 26, 3441-3452 (2010). On-chip dielectrophoretic co-assembly of live cells and particles into responsive biomaterials. DOI: 10.1021/la902989r

24.   M.-L. Brandy, O. J. Cayre, R. F. Fakhrullin, O. D. Velev, and V. N. Paunov, Soft Matter, 6, 3494–3498 (2010). Directed assembly of yeast cells into living celloidosomes by bubble templating. DOI: 10.1039/c0sm00003e

25.   A. Goyal, C. K. Hall and O. D. Velev, Soft Matter, 6, 480–484 (2010). Bicontinuous gels formed by self-assembly of dipolar colloid particles. DOI: 10.1039/b907873h

26.   V. Rastogi, A. A. García, M. Marquez and O. D. Velev, Macromol. Rapid Commun., 31, 190-195 (2010). Anisotropic particle synthesis inside droplet templates on superhydrophobic surfaces. DOI: 10.1002/marc.200900587

27.   S. Kim, H. Barraza and O. D. Velev, J. Mater. Chem., 19, 7043–7049 (2009). Intense and selective coloration of foams stabilized with functionalized particles. DOI: 10.1039/b908054f

28.   S. T. Chang, A. B. Ucar, G. R. Swindlehurst, R.  O. Bradley, F. J. Renk and O. D. Velev, Adv. Mater. 21, 2803–2807 (2009). Materials of controlled shape and stiffness with photocurable microfluidic endoskeleton. DOI: 10.1002/adma.200803638

29.   L. B. Jerrim and O. D. Velev, Langmuir, 25, 5692–5702 (2009). Deposition of live cells and large particles by “Convective-Sedimentation” assembly. DOI: 10.1021/la900519p

30.   S. K. Smoukov, S. Gangwal, M. Marquez and O. D. Velev, Soft Matter, 5, 1285-1292 (2009). Reconfigurable responsive structures assembled from magnetic Janus particles. DOI: 10.1039/b814304h

31.   S. Gangwal, O. J. Cayre and O. D. Velev, Langmuir, 24, 13312-13320 (2008). Dielectrophoretic assembly of metallodielectric Janus particles in AC electric fields. DOI: 10.1021/la8015222

32.   V. Rastogi, S. Melle, O. G. Calderón, A. A. García, M. Marquez and O. D. Velev, Adv. Mater., 20, 4263-4268 (2008). Synthesis of light-diffracting assemblies from microspheres and nanoparticles in droplets on a superhydrophobic surface. DOI: 10.1002/adma.200703008

33.   B. M. Budhlall, M. Marquez and O. D. Velev, Langmuir, 24, 11959–11966 (2008). Microwave, photo- & thermally responsive PNIPAm - gold nanoparticle microgels. DOI: 10.1021/la8019556

34.   H. A. Wege, S. Kim, V. N. Paunov, Q. Zhong and O. D. Velev, Langmuir, 24, 9245-9253 (2008). Long-term stabilization of foams and emulsions with in-situ formed microparticles from hydrophobic cellulose. DOI: 10.1021/la801634j

35.   S. Gupta, R. G. Alargova, P. K. Kilpatrick and O. D. Velev, Soft Matter, 4, 726 - 730 (2008). On-chip electric field driven assembly of biocomposites from live cells and functionalized particles. DOI: 10.1039/b717850f

36.   S. Gangwal, O. J. Cayre, M. Z. Bazant, O. D. Velev, Phys. Rev. Lett., 100, 058302, 1-4 (2008). Induced-charge electrophoresis of metallo-dielectric particles. DOI: 10.1103/PhysRevLett.100.058302

37.   A. Goyal, C. K. Hall and O. D. Velev, Phys. Rev. E, 77, 031401, 1-6 (2008). Phase diagram for stimulus-responsive materials containing dipolar colloidal particles. DOI: 10.1103/PhysRevE.77.031401

38.   D. M.  Kuncicky and O. D. Velev, Langmuir, 24, 1371-1380 (2008). Characterization and engineering of the process of colloidal crystal formation from drying sessile droplets. DOI: 10.1021/la702129b

39.   S. T. Chang, E. Beaumont, D. N. Petsev and O. D. Velev, Lab Chip, 7, 117 - 124 (2008). Remotely powered distributed microfluidic pumps and mixers based on miniature diodes. DOI: 10.1039/b712108c

40.   O. J. Cayre, S.-T. Chang and O. D. Velev, J. Am. Chem. Soc. 129, 10801-10806 (2007). Polyelectrolyte diode - nonlinear current response of a junction between aqueous ionic gels. DOI: 10.1021/ja072449z 

41.   S.-T. Chang, V. N. Paunov, D. N. Petsev and O. D. Velev, Nature Mater., 6, 235-240 (2007). Remotely powered self-propelling particles and micropumps based on miniature diodes. DOI: 10.1038/nmat1843

42.   H. A. Wege, A. Dyab, O. D. Velev and V. N. Paunov, PCCP, 9, 6300-6303 (2007). Fabrication of magnetically functionalized lens- and donut- shaped microparticles by a surface formation technique. DOI: 10.1039/b705046a

43.   V. Rastogi and O. D. Velev, Biomicrofluidics, 1, 014107, 1-17 (2007). Development and evaluation of realistic microbioassays in freely suspended droplets on a chip. DOI: 10.1063/1.2714185

44.   S. Gupta, S. Huda, P. K. Kilpatrick and O. D. Velev, Anal. Chem., 23, 5498-5504 (2007). Characterization and optimization of gold nanoparticle-based silver-enhanced immunoassays. DOI: 10.1021/ac062341m 

45.   Z. Yuan, D. N. Petsev, B. G. Prevo, O. D. Velev and P. Atanassov, Langmuir, 23, 5498-5504 (2007). Two-dimensional nanoparticle arrays derived from ferritin monolayers. DOI: 10.1021/la062891f 

46.   B. G. Prevo, E. W. Hon and O. D. Velev, J. Mater. Chem., 17, 791-799 (2007). Assembly and characterization of colloid-based antireflective coatings on multicrystalline silicon solar cells. DOI: 10.1039/b612734g 

47.   D. M. Kuncicky, K. Bose, K. D. Costa and O. D. Velev, Chem. Mater., 19, 141-143 (2007). Sessile droplet templating of miniature porous hemispheres from colloid crystals. DOI: 10.1021/cm062217j

48.   Q. Zhong, C. R. Daubert, and O. D. Velev, J. Agric. Food Chem., 55, 2688-2697 (2007). Physicochemical variables affecting the rheology and microstructure of rennet casein gels. DOI: 10.1021/jf0625914

49.   D. M. Kuncicky, R. R. Naik and O. D. Velev, Small, 2, 1462 - 1466 (2006). Rapid deposition and long range alignment of nanocoatings and arrays of electrically conductive wires from tobacco mosaic virus. DOI: 10.1002/smll.200600399

50.   H.-Y. Koo, S.-T. Chang, W.-S. Choi, J.-H. Park, D.-Y. Kim and O. D. Velev, Chem. Mater, 18, 3308-3313 (2006). Emulsion-based synthesis of reversibly swellable, magnetic nanoparticle-embedded polymer microcapsules. DOI: 10.1021/cm0608286

51.   S.-T. Chang and O. D. Velev, Langmuir, 22, 1459-1468 (2006). Evaporation-induced microseparation inside freely floating droplets. DOI: 10.1021/la052695t

52.   R. G. Alargova, V. N. Paunov and O. D. Velev, Langmuir, 22, 765-774 (2006). Formation of polymer microrods in shear flow by emulsification - solvent attrition mechanism. DOI: 10.1021/la051825v

53.   J. R. Millman, K. H. Bhatt, B. G. Prevo and O. D. Velev, Nature Mater., 4, 98-102 (2005). Anisotropic particle synthesis in dielectrophoretically controlled microdroplet reactors. DOI: 10.1038/nmat1270

54.   K. H. Bhatt, S Grego and O. D. Velev, Langmuir, 21, 6603-6612 (2005). An AC electrokinetic technique for collection and concentration of particles and cells on patterned electrodes. DOI: 10.1021/la050658w

55.   B. G. Prevo, Y. Hwang and O. D. Velev, Chem. Mater., 17, 3642-3651 (2005). Convective assembly of antireflective silica coatings with controlled thickness and refractive index. DOI: 10.1021/cm050416h

56.   D. M. Kuncicky, S. D. Christesen and O. D. Velev, Appl. Spectr., 59, 401-409 (2005). Role of the micro- and nanostructure in the performance of SERS substrates assembled from gold nanoparticles. [Appl. Spectr.]

57.   B. G. Prevo, J. C. Fuller, III and O. D. Velev, Chem. Mater., 17, 28-35 (2005). Rapid deposition of gold nanoparticle films with controlled thickness and structure by convective assembly. DOI: 10.1021/cm0486621

58.   N. H. Finkel, B. G. Prevo, O. D. Velev and L. He, Anal. Chem., 77, 1088-1095 (2005). Ordered silicon nanocavity arrays in surface-assisted desorption/ionization mass spectrometry. DOI: 10.1021/ac048645v

59.   O. D. Velev, Y. H. Pan, E. W. Kaler and A. M. Lenhoff, Cryst. Growth Design, 5, 351-359 (2005). Molecular effects of anionic surfactants on lysozyme precipitation and crystallization. DOI: 10.1021/cg049852r

60.   R. G. Alargova, D. S. Warhadpande, V. N. Paunov and O. D. Velev, Langmuir, 20, 10371-10374 (2004). Foam superstabilization by polymer microrods. DOI: 10.1021/la048647a

61.   R. G. Alargova, K. H. Bhatt, V. N. Paunov and O. D. Velev, Adv. Mater., 16, 1653-1657 (2004). Scalable synthesis of new class of polymer microrods by a liquid-liquid dispersion technique. DOI: 10.1002/adma.200400112

62.   P. Noble, O. J. Cayre, R. G. Alargova, O. D. Velev and V. N. Paunov, J. Am. Chem. Soc., 126, 8092-8093 (2004). Fabrication of ‘Hairy’ colloidosomes with shells of polymeric microrods. DOI: 10.1021/ja047808u

63.   B. G. Prevo and O. D. Velev, Langmuir, 20, 2099-2107 (2004). Controlled rapid deposition of structured coatings from micro-and nanoparticle suspensions. DOI: 10.1021/la035295j

64.   K. H. Bhatt and O. D. Velev, Langmuir, 20, 467-476 (2004). Control and modeling of the dielectrophoretic assembly of on-chip nanoparticle wires. DOI: 10.1021/la0349976

65.   S. O. Lumsdon, E. W. Kaler and O. D. Velev, Langmuir, 20, 2108-2116 (2004). Two-dimensional crystallization of microspheres by coplanar AC electric field. DOI: 10.1021/la035812y

66.   Q. Zhong, C. R. Daubert and O. D. Velev, Langmuir, 20, 7399-7405 (2004). Cooling effects on a model rennet casein gel system: Part I. Rheological characterization. DOI: 10.1021/la036147w

67.   Q. Zhong, C. R. Daubert and O. D. Velev, Langmuir, 20, 7406-7411 (2004). Cooling effects on a model rennet casein gel system: Part II. Permeability and Microscopy. DOI: 10.1021/la036148o

68.   O. D. Velev, B. G. Prevo and K. H. Bhatt, Nature, 426, 515-516 (2003). On-chip manipulation of freely suspended droplets. DOI: 10.1038/426515a

69.   O. Cayre, V. N. Paunov and O. D. Velev, Chem. Comm., 2296-2297 (2003). Fabrication of dipolar colloid particles by microcontact printing. DOI: 10.1039/b307296g

70.   O. Cayre, V. N. Paunov and O. D. Velev, J. Mater. Chem., 13, 2445-2450 (2003). Fabrication of asymmetrically coated colloid particles by microcontact printing techniques. DOI: 10.1039/b308817k

71.   J. Tang, B. Gao, H. Geng, O. D. Velev, L.C. Qin, and O. Zhou, Adv. Mater., 15, 1352-1355 (2003). Assembly of 1D nanostructures into sub-micron diameter fibrils with controlled and variable length. DOI: 10.1002/adma.200305086

72.   S. O. Lumsdon, J. P. Williams, E. W. Kaler and O. D. Velev, Appl. Phys. Lett., 82, 949-951 (2003).  Dielectrophoretic assembly of oriented and switchable two-dimensional photonic crystals. DOI: 10.1063/1.1541114

73.   C. Guo, B. E. Campbell, K. Chen, A. M. Lenhoff and O. D. Velev, Colloids Surf. B: Biointerfaces, 29, 297-307 (2003). Casein precipitation equilibria in the presence of calcium ions and phosphates. DOI: 10.1016/S0927-7765(03)00018-3

74.   Y. Yuan, O. D. Velev, and A. M. Lenhoff, Langmuir, 19, 3705-3711 (2003). Mobility of adsorbed proteins studied by fluorescence recovery after photobleaching. DOI: 10.1021/la026368m

75.   P. M. Tessier, S. D. Christesen, K. K. Ong, E. M. Clemente, A. M. Lenhoff, E. W. Kaler and O D. Velev, Appl. Spectr., 56, 1524-1530 (2002). On-line spectroscopic characterization of sodium cyanide with nanostructured gold SERS substrates. DOI: 10.1366/000370202321115968

76.   Y. J. Yuan, O. D. Velev, K, Chen, B. E. Campbell, E. W. Kaler and A. M. Lenhoff, J. Agric. Food Chem., 50, 4953-4958 (2002). Effect of pH and Ca2+-induced associations of soybean proteins. DOI: 10.1021/jf025582d

77.   K. D. Hermanson, S. O. Lumsdon, J. P. Williams, E. W. Kaler and O. D. Velev,  Science, 294, 1082-1086 (2001). Dielectrophoretic assembly of electrically functional microwires from nanoparticle suspensions. DOI: 10.1126/science.1063821

78.   P. M. Tessier, O. D. Velev, A. T. Kalambur, J. F. Rabolt, A. M. Lenhoff and E. W. Kaler, Adv. Mater., 13, 396-400 (2001). Structured metallic films for optical and spectroscopic applications via colloidal crystal templating. DOI: [Wiley link]

79.   O. D. Velev, A. M. Lenhoff and E. W. Kaler, Science, 287, 2240-2243 (2000). A class of microstructured particles through colloidal crystallization. DOI: 10.1126/science.287.5461.2240

80.   P. M. Tessier, O. D. Velev, A. T. Kalambur, J. F. Rabolt, A. M. Lenhoff and E. W. Kaler,
J. Am. Chem. Soc., 122, 9554-9555 (2000). Assembly of gold nanostructured films templated by colloidal crystals and use in surface-enhanced Raman spectroscopy.
DOI: 10.1021/ja0022831

81.   O. D. Velev, E. W. Kaler and A. M. Lenhoff, J. Phys. Chem. B, 104, 9267-9275 (2000). Surfactant diffusion into lysozyme crystal matrices investigated by quantitative fluorescence microscopy. DOI: 10.1021/jp000393o

82.   K. P. Velikov and O. D. Velev, "Formation of 2D structures of micrometer sized latex particles inside thinning foam films", in "Emulsions, Foams and Thin Films", K. L. Mittal, P. Kumar, Eds., Marcel Dekker, New York, 2000, pp. 279-281.

83.   O. D. Velev, P. M. Tessier, A. M. Lenhoff and E. W. Kaler, Nature, 401, 548-548 (1999). A class of porous metallic nanostructures. DOI: 10.1038/44065

84.   O. D. Velev and E. W. Kaler, Langmuir 15, 3693-3696 (1999). In situ assembly of colloidal particles into miniaturized biosensors. DOI: 10.1021/la981729c

85.   O. D. Velev, E. W. Kaler and A. M. Lenhoff, Adv. Mater., 11, 1345-1349 (1999). Photochemical micromachining of lysozyme crystals. DOI: [Wiley Link]

86.   K. Furusawa and O. D. Velev, Colloids Surfaces A, 159, 359-371 (1999). Electrokinetic behavior in synthetic process of composite particles. DOI: 10.1016/S0927-7757(99)00272-1

87.   B. L. Neal, D. Asthagiri, O. D. Velev, A. M. Lenhoff, and E. W. Kaler, J. Cryst. Growth, 196, 377-387 (1999). Why is the osmotic second virial coefficient related to protein crystallization? DOI: 10.1016/S0022-0248(98)00855-0

88.   O. D. Velev, E. W. Kaler and A. M. Lenhoff, Biophys. J., 75, 2682-2697 (1998). Protein interactions in solution characterized by light and neutron scattering: Comparison of lysozyme and chymotrypsinogen. DOI: 10.1016/S0006-3495(98)77713-6

89.   O. D. Velev, B. E. Campbell and R. P. Borwankar, Langmuir, 14, 4122-4130 (1998). Effect of calcium ions and environmental conditions on the properties of b-Casein stabilized films and emulsions. DOI: 10.1021/la980212y

90.   O. D. Velev, T. A. Jede, R. F. Lobo and A. M. Lenhoff, Chem. Mater., 10, 3597-3602 (1998). Microstructured porous silica obtained via colloidal crystal templates. DOI: 10.1021/cm980444i

91.   K. P. Velikov, F. Durst and O. D. Velev, Langmuir, 14, 1148-1155 (1998). Direct observation of the dynamics of latex particles confined inside thinning water-air films. DOI: 10.1021/la970338f

92.   O. D. Velev, T. A. Jede, R. F. Lobo and A. M. Lenhoff, Nature, 389, 447-448 (1997). Microstructured porous silica via colloidal crystallization. DOI: 10.1038/38921

93.   O. D. Velev, Adv. Biophys., 34, 139-157 (1997). Assembly of protein structures onto liposomes by using non-specific and specific interactions. [Adv. Biophys. Link]

94.   K. P. Velikov, O. D. Velev, K. G. Marinova and G. N. Constantinides, J. Chem. Soc. Faraday Trans., 93, 2069-2075 (1997). Effect of the surfactant concentration on the kinetic stability of thin foam and emulsion films. DOI: 10.1039/a608305f

95.   O. D. Velev and K. Nagayama, Langmuir, 13, 1856-1859 (1997). Assembly of latex particles by using emulsion droplets 3. Reverse (Water in Oil) systems. DOI: 10.1021/la960652u

96.   O. D. Velev, K. D. Danov and I. B. Ivanov, J. Dispersion Sci. Technol., 18, 625-645 (1997). Stability of emulsions under static and dynamic conditions. DOI: 10.1080/01932699708943763

97.   K. G. Marinova, T. G. Gurkov, O. D. Velev, I. B. Ivanov and R. P. Borwankar, Colloids Surfaces A, 123-124, 155-167 (1997). The role of additives for the behaviour of thin emulsion films stabilised by proteins. DOI: 10.1016/S0927-7757(96)03847-2

98.   T. S. Horozov, C. D. Dushkin, K. D. Danov, L. N. Arnaudov, O. D. Velev, A. Mehreteab and G. Broze, Colloids Surfaces A, 113, 117-126 (1996). Effect of the surface expansion and wettabilty of the capillary on the dynamic surface tension measured by the maximum bubble pressure method. DOI: 10.1016/0927-7757(96)03574-1

99.   K. G. Marinova, R. G. Alargova, N. D. Denkov, O. D. Velev, D. N. Petsev, I. B. Ivanov and R. P. Borwankar, Langmuir, 12, 2045-2051 (1996). Charging of Oil/Water interfaces due to spontaneous adsorption of hydroxyl ions. DOI: 10.1021/la950928i

100.       O. D. Velev, K. Furusawa and K. Nagayama, Langmuir, 12, 2385-2391 (1996). Assembly of latex particles by using emulsion droplets as templates 2. Ball-like and composite aggregates. DOI: 10.1021/la950679y

101.       O. D. Velev, K. Furusawa and K. Nagayama, Langmuir, 12, 2374-2384 (1996). Assembly of latex particles by using emulsion droplets as templates 1. Microstructured hollow spheres. DOI: 10.1021/la9506786

102.       O. D. Velev, G. N. Constantinides, D. G. Avraam, A. C. Payatakes and R. P. Borwankar, J. Colloid Interface Sci., 175, 68-76 (1995). Investigation of thin liquid films of small diameters and high capillary pressures by a miniaturized cell. DOI: 10.1006/jcis.1995.1430

103.       O. D. Velev, T. D Gurkov, I. B. Ivanov and R. P. Borwankar, Phys. Rev. Lett., 75, 264-267 (1995). Abnormal thickness and stability of nonequilibrium liquid films. DOI: 10.1103/PhysRevLett.75.264

104.       J. T. Petkov, N. D. Denkov, K. D. Danov, O. D. Velev, R. Aust and F. Durst, J. Colloid Interface Sci., 172, 147-154 (1994). Measurement of the drag coefficient of spherical particles attached to a fluid interface. DOI: 10.1006/jcis.1995.1237

105.       G. S. Lazarov, N. D. Denkov, O. D. Velev, P. A. Kralchevsky and K. Nagayama, J. Chem. Soc. Faraday Trans., 90, 2077-2083 (1994). Formation of two-dimensional structures from colloid particles on fluorinated oil substrate. DOI: 10.1039/ft9949002077

106.       O. D. Velev, N. D. Denkov, V. N. Paunov, P. A. Kralchevsky and K. Nagayama, J. Colloid Interface Sci., 166, 66-73 (1994). Capillary image forces: II. Experiment. DOI: 10.1006/jcis.1994.1333

107.       P. A. Kralchevsky, N. D. Denkov, V. N. Paunov, O. D. Velev, I. B. Ivanov, H. Yoshimura and K. Nagayama, J. Phys. Cond. Matter, 6, A 395-402 (1994). Formation of two-dimensional colloid crystals in liquid films under the action of capillary forces. DOI: 10.1088/0953-8984/6/23A/065

108.       O. D. Velev, T. D. Gurkov, S. K. Chakarova, B. I. Dimitrova, I. B. Ivanov and R. P. Borwankar, Colloids Surfaces A, 83, 43-55 (1994). Experimental investigations on model emulsion systems stabilized with nonionic surfactant blends. DOI: 10.1016/0927-7757(93)02639-V

109.       O. D. Velev, T. D. Gurkov and R. P. Borwankar, J. Colloid Interface Sci., 159, 497-501 (1993). Spontaneous cyclic dimpling in emulsion films due to surfactant mass transfer between the phases. DOI: 10.1006/jcis.1993.1352

110.       O. D. Velev, A. D. Nikolov, N. D. Denkov, G. Doxastakis, V. Kiosseoglu and G. Stalidis, Food Hydrocolloids, 7, 55-71 (1993). Investigation of the mechanisms of stabilization of food emulsions by vegetable proteins. DOI: 10.1016/S0268-005X(09)80024-6

111.       N. D. Denkov, O. D. Velev, P. A. Kralchevsky, I. B. Ivanov, H. Yoshimura and K. Nagayama, Langmuir, 8, 3183-3189 (1992). Mechanism of formation of two-dimensional crystals from latex particles on substrata. DOI: 10.1021/la00048a054

112.       M. Morita, M. Matsumoto, S. Usui, T. Abe, N. Denkov, O. Velev and I. B. Ivanov, Colloids Surfaces, 67, 81-93 (1992). Interfacial properties and emulsion stability in fluorinated oil-nonfluorinated oil-surfactant(s) systems. DOI: 10.1016/0166-6622(92)80288-D

113.       N. D. Denkov, O. D. Velev, P. A. Kralchevsky, I. B. Ivanov, H. Yoshimura and K. Nagayama, Nature, 361, 26-26 (1993). Dynamics of two-dimensional crystallization. DOI: 10.1038/361026a0

114.       O. D. Velev, N. D. Denkov, V. N. Paunov, P. A. Kralchevsky, K. Nagayama, Langmuir, 9, 3702-3709 (1993). Direct measurement of lateral capillary forces. DOI: 10.1021/la00036a056

 

Book chapters and invited reviews (refereed)

115.       I. Kretzschmar,  S. Gangwal, A. B. Pawar and O. D. Velev, “Self-assembly of Janus particles under external fields,” chapter in “Janus Particle Synthesis, Self-assembly and Applications”, S. Granick and S. Jiang, Eds., RSC Press, in press, 2012.

116.       N. Carroll, S. T. Chang, D. N. Petsev and O. D. Velev, “Droplet Microreactors for Materials Synthesis”, chapter in “Microdroplet Technology: Principles and Applications in Biology and Chemistry”, P. Day, A. Manz and Y. Zhang, Eds., Elsevier, 2012, pp. 179-209.

117.       B. G. Prevo and O. D. Velev, "Materials Deposition in Evaporating Menisci — Fundamentals and Engineering Applications of the Convective Assembly Process", chapter in "Evaporative Self-Assembly of Ordered Complex Structures", Zhiqun Lin, Ed., World Scientific Publ., 2012, pp. 109-156.

118.       D. N. Petsev and O. D. Velev, "Transport Control of Fluid and Solutes in Microchannels Using AC Field and Semiconductor Diodes", chapter in "Continuum Mechanics", Andrus Koppel and Jaak Oja, Eds., Nova Science Publ., 2010, pp. 85-103.

119.       O. D. Velev and S. Gupta, Adv. Mater. 21, 1897–1905 (2009). Materials fabricated by micro and nanoparticle assembly - The challenging path from science to engineering. DOI: 10.1002/adma.200801837

120.       O. D. Velev, S. Gangwal and D. N. Petsev, Annu. Rep. Prog. Chem., Sect. C, 105, 213-246 (2009). Particle-localized AC and DC manipulation and electrokinetics. DOI: 10.1039/b803015b

121.       K. P. Velikov and O. D. Velev, "Stabilization of Thin Films, Foams, Emulsions and Bifluid Gels with Surface-active Solid Particles", chapter in "Colloid Stability and Application in Pharmacy", T. F. Tadros, Ed., Wiley-VCH Publ. Weinheim, 2007, pp. 277-306.

122.       B. G. Prevo, D. M. Kuncicky and O. D. Velev, Colloids Surf. A: Physicochem. Eng. Asp., 311, 2-10 (2007). Engineered deposition of coatings from nano- and micro-particles: A brief review of convective assembly at high volume fraction. DOI: 10.1016/j.colsurfa.2007.08.030

123.       O. D. Velev and K. H. Bhatt, Soft Mater, 2, 738-750 (2006). On-chip micromanipulation and assembly of colloidal particles by electric fields. DOI: 10.1039/b605052b

124.       K. P. Velikov and O. D. Velev, "Novel Materials Derived from Particles Assembled on Liquid Surfaces", chapter in "Colloidal Particles at Liquid Interfaces", B. P. Binks and T. S. Horozov, Eds., Cambridge University Press, 2006, pp. 225-297.

125.       O. D. Velev, Science, 312, 367-368 (2006). Self-assembly of unusual nanoparticle crystals (invited Perspectives paper). DOI: 10.1126/science.1125800

126.       D. M. Kuncicky, B. G. Prevo and O. D. Velev, J. Mater. Chem., 16, 1207-1211 (2006). Controlled assembly of SERS substrates templated by colloidal crystal films. DOI: 10.1039/b512734c

127.       O. D. Velev and S. O. Lumsdon, "Electrically Functional Nanostructures", chapter in "Encyclopedia of Nanoscience and Nanotechnology", J. A. Schwartz, C. Contescu, K. Putyera, Eds., Marcel Dekker, New York, 2004, pp. 1025-1042.

128.       O. D. Velev, "Assembly of Electrically Functional Microstructures from Colloidal Particles", chapter in "Colloids and Colloid Assemblies", F. Caruso, Ed., Wiley-VCH Publ. Weinheim, 2003, pp. 437-464.

129.       O. D. Velev, "Assembly of Colloidal Particles into Nanostructured Materials and Microscopic Devices", chapter in: "Handbook of Surfaces and Interfaces of Materials", H. S. Nalwa, Ed., Vol. 3, pp. 125-163, Academic Press, San Diego, 2001.

130.       O. D. Velev and E. W. Kaler, Adv. Mater. 12, 531-534 (2000). Structured porous materials via colloidal crystal templating: From inorganic oxides to metals. DOI: [Wiley Link]

131.       O. D. Velev and A. M. Lenhoff, Curr. Opinion Colloid Interface Sci. 5, 56-63 (2000). Colloidal crystals as templates for porous materials. DOI: 10.1016/S1359-0294(00)00039-X

 

     Publications in proceedings volumes and marginally refereed journals

1.     K. P. Velikov and O. D. Velev, Curr. Opinion Colloid Interface Sci., 16, 81-83 (2011). Colloidal dispersions by engineering and design (Editorial overview). DOI: 10.1006/10.1016/j.cocis.2011.01.007

2.     B. G. Prevo and O. D. Velev, "Engineered Assembly of Coatings from Nano- and Micro-particles: A brief review of convective assembly at high volume fraction", in "Interactions of Colloidal Dispersions in Coating Process and Related Matters", Proc. of NEPTIS-XIV Intl. Sem., Y. Mori, Ed., Nisshin Eng., 2005. pp. 117-126.

3.     G. Tsutsumanova, M. Bivolarska, T. Velinov, B. Prevo, O. Velev, S. Russev, Annals Sofia Univ. St. Kliment Ohridski, 98, 83-90 (2005). A set-up for measuring local optical spectra.

4.     V. N. Paunov, P. F. Noble, O. J. Cayre, R. G. Alargova and O. D. Velev, MRS Symp. Proc. 845, AA5.18.1-3 (2005). Fabrication of novel types of colloidosome microcapsules for drug delivery applications.

5.     R. J. Hill, J. Millman and O. D. Velev, Pharmaceutical Eng. 24, 98-110 (2004). Fabrication and study of simple and robust microfluidic devices.

6.     D. M. Kuncicky, S. D. Christesen and O. D. Velev, Proc. SPIE Int. Soc. Opt. Eng., 5585,  33-45, (2004). Engineering of SERS substrate structure: Role of micro- and nanoporosity.

7.     J. Tang, G. Yang, J. Zhang, H.Z. Geng, B. Gao, O. Velev, L.-C. Qin, O. Zhou, MRS Symp. Proc. 788, L8.27.1-4 (2004). Controlled assembly of carbon nanotube fibrils by dielectrophoresis.

8.     P. M. Tessier, K. Ong, S. D. Christesen, A. M. Lenhoff, E. W. Kaler, O. D. Velev, Proc. SPIE Int. Soc. Opt. Eng., 4577,  53-64 (2004). Assembly of gold nanostructured films templated by colloidal crystals and use in surface-enhanced Raman spectroscopy.

9.     S. O. Lumsdon, E. W. Kaler and O. D. Velev, MRS Symp. Proc. 776, 81-87 (2003). Dielectrophoretic assembly of switchable two-dimensional photonic crystals with specific orientation.

10.            O. J. Cayre, V. N. Paunov and O. D. Velev, MRS Symp. Proc. EXS-2, M3.6.1-3 (2003). Preparation of unsymmetrically coated colloid particles by microcontact printing techniques.

11.   T. D. Gurkov, K. D. Danov, O. D. Velev, I. B. Ivanov, R. P. Borwankar, Proc. of III World Congress on Emulsions, Paris, 2-3, 155-161 (1997). Stability of liquid films in non-preequilibrated emulsions.

12.   O. Velev, T. Gurkov, R. Alargova, K. Marinova, I. Ivanov and R. Borwankar, Proc. of I World Congress on Emulsions, Paris, 1-22, 130-136 (1993). Stability of films and emulsions in the presence of nonionic surfactant blends.

 

Intellectual property generated

Patents, provisional patents, patent applications and active invention diclosures
(2008-2012, of more than 24 total patents and invention disclosures)

·        O. D. Velev, "Droplet Transportation Devices and Methods Having a Fluid Surface", US Patent 7,647,380, 2009.

·        O. D. Velev and R. A. Alargova, "Process for Preparing Microrods Using Liquid-Liquid Dispersion", US Patent 7,323,540, January 2008.

·        O. D. Velev, S. Smoukov, M. Marquez, "Nanospinning of Polymer Fibers from Sheared Solutions," Patent application, NCSU, 2009.

·        H. J. Barraza, S. Kim and O. Velev, "Modification of particulate-stabilized fluid-fluid interfaces", Patent application, Unilever/NCSU, 2009.

·        O. D. Velev, S. Smoukov, “Shear Nanospinning Process for the Fabrication of Inorganic Fibers and Nonwovens” Provisional patent application, NCSU, 2010.

·        O. D. Velev, F. J. Renk, S.-T. Chang, G. Swindlehurst, R. O. Bradley, IV, "Photocurable Materials with Microfluidic Endoskeleton", Provisional patent application, NCSU, 2009.

·        O. D. Velev, S. Gangwal, A. B. Ucar, F. J. Renk, "Color changing, heat-exchanging and infrared radiation controlling  microfluidic materials for light and energy management", Provisional patent application, NCSU, 2009.

·        A. Richter, O. D. Velev, J. S. Brown, “Engineered biopolymer nano-aggregates with ionic and pH triggered disassembly”, Invention disclosure, NCSU, 2012.

·        O. D. Velev, R. Sharma, L. D’Costa, “Highly Efficient Collection of Oil from Water Surfaces Using Self-Propelling Absorbing Particles”, Invention disclosure, NCSU, 2012.

·        Stephanie Lam, Elena Blanco, Stoyan K. Smoukov, Krassimir P. Velikov, Orlin D. Velev, “Magnetically Responsive Pickering Foams”, Invention disclosure, NCSU, 2012.

·        O. D. Velev, A. Richter, “Functionalized Environmentally Benign Nanoparticles”, Invention disclosure, NCSU, 2012.

·        O. D. Velev, S. Smoukov, S. Stoyanov, E. Pelan, V. Edara, S. Ahmed, J. Peters, “Shear-driven Fabrication of Ethyl Cellulose Sheet Particulates with Applications as Foam Stabilizers and Rheology Modifiers”, Invention disclosure, NCSU, 2012.

·        O. D. Velev, S. Smoukov, P. Geisen, M. Wright, S. Gangwal, “A continuous process for nanofiber fabrication based on shear and antisolvent-based polymer precipitation” Invention disclosure, NCSU, 2011.

·        O. D. Velev, H.-J. Koo, S.-T. Chang, "Aqueous Soft Matter Based Photovoltaic Devices" Invention disclosure, NCSU, 2010.

·        H. J. Barraza, S. Kim and O. Velev, "Intense and Selective Coloration of Foams Using Solid Particle Stabilizers", Invention disclosure, approved for patent filing with Unilever, NCSU, 2008.

 

Last updated Dec. 2012

 

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