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Showing 1 to 12 of 34 entries
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Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers.

Nanoscale

Rittikulsittichai S, Kolhatkar AG, Sarangi S, Vorontsova MA, Vekilov PG, Brazdeikis A, Randall Lee T.
PMID: 27227963
Nanoscale. 2016 Jun 09;8(23):11851-61. doi: 10.1039/c5nr09235c.

The research strategy described in this manuscript harnesses the attractive properties of hydrogels, gold nanorods (Aurods), and magnetic nanoparticles (MNPs) by synthesizing one unique multi-responsive nanostructure. This novel hybrid structure consists of silica-coated magnetic particles encapsulated within a thermo-responsive...

Nucleation in complex multi-component and multi-phase systems: general discussion.

Faraday discussions

Price S, Rimez B, Sun W, Peters B, Christenson H, Hughes C, Sun CC, Veesler S, Pan H, Brandel C, Biscans B, Meekes H, Rosbottom I, Roth WJ, Seton L, Taulelle F, Black S, Threlfall T, Vekilov P, Poornachary S, Diemand J, Toroz D, Salvalaglio M, Tipduangta P, Sefcik J, Booth S, Rasmuson A, Janbon S, Ter Horst J, Simone E, Hammond R, Bertran CA, Vetter T, Sear R, De Yoreo J, Harris K, Ristic R, Kavanagh A, Roberts K, Breynaert E, Myerson A, Coquerel G, Wu D, Cölfen H, Cuppen H, Smets M, Wu DT.
PMID: 26081969
Faraday Discuss. 2015;179:503-42. doi: 10.1039/c5fd90039e. Epub 2015 Jun 17.

No abstract available.

Heterogeneity determination and purification of commercial hen egg-white lysozyme.

Acta crystallographica. Section D, Biological crystallography

Thomas BR, Vekilov PG, Rosenberger F.
PMID: 15299642
Acta Crystallogr D Biol Crystallogr. 1996 Jul 01;52:776-84. doi: 10.1107/S090744499600279X.

Hen egg-white lysozyme (HEWL) is widely used as a model protein, although its purity has not been adequately characterized by modern biochemical techniques. We have identified and quantified the protein heterogeneities in three commercial HEWL preparations by sodium dodecyl...

Kinetics of two-step nucleation of crystals.

The Journal of chemical physics

Kashchiev D, Vekilov PG, Kolomeisky AB.
PMID: 16035792
J Chem Phys. 2005 Jun 22;122(24):244706. doi: 10.1063/1.1943389.

When the nucleation of a stable crystalline phase directly in a supersaturated old phase is greatly retarded, the crystal nuclei might nucleate within faster-forming particles of an intermediate phase. Here we present a theoretical investigation of the kinetics of...

X-ray topography of tetragonal lysozyme grown by the temperature-controlled technique.

Acta crystallographica. Section D, Biological crystallography

Stojanoff V, Siddons DP, Monaco LA, Vekilov P, Rosenberger F.
PMID: 15299890
Acta Crystallogr D Biol Crystallogr. 1997 Sep 01;53:588-95. doi: 10.1107/S0907444997005763.

Growth-induced defects in lysozyme crystals were observed by white-beam and monochromatic X-ray topography at the National Synchrotron Light Source (NSLS) at the Brookhaven National Laboratory (BNL). The topographic methods were non-destructive to the extent that traditional diffraction data collection...

Electronic structure, thermal, and elastic properties of Al-Li random alloys.

Physical review. B, Condensed matter

Korzhavyi PA, Ruban AV, Simak SI, Vekilov YK.
PMID: 10010502
Phys Rev B Condens Matter. 1994 May 15;49(20):14229-14237. doi: 10.1103/physrevb.49.14229.

No abstract available.

Two types of amorphous protein particles facilitate crystal nucleation.

Proceedings of the National Academy of Sciences of the United States of America

Yamazaki T, Kimura Y, Vekilov PG, Furukawa E, Shirai M, Matsumoto H, Van Driessche AE, Tsukamoto K.
PMID: 28193873
Proc Natl Acad Sci U S A. 2017 Feb 28;114(9):2154-2159. doi: 10.1073/pnas.1606948114. Epub 2017 Feb 13.

Nucleation, the primary step in crystallization, dictates the number of crystals, the distribution of their sizes, the polymorph selection, and other crucial properties of the crystal population. We used time-resolved liquid-cell transmission electron microscopy (TEM) to perform an in...

Molecular mechanisms of crystallization and defect formation.

Physical review letters

Yau S, Thomas BR, Vekilov PG.
PMID: 10991281
Phys Rev Lett. 2000 Jul 10;85(2):353-6. doi: 10.1103/PhysRevLett.85.353.

Using the atomic force microscope (AFM) in situ during the crystallization of the protein apoferritin, we show that for this system the kink density along the steps is an equilibrium property that, multiplied by the frequency of molecular attachment,...

Intrinsic instability of the concentration field in diffusion-limited growth and its effect on crystallization.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Wang M, Yin XB, Vekilov PG, Peng RW, Ming NB.
PMID: 11969979
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Aug;60(2):1901-5. doi: 10.1103/physreve.60.1901.

The dynamic behavior of the concentration field in crystallization is investigated by considering the coupling of the bulk concentration field and interfacial kinetics. It is shown that the concentration field may become unstable for perturbations with certain wavelength. When...

Dissipating step bunches during crystallization under transport control.

Physical review. E, Statistical, nonlinear, and soft matter physics

Lin H, Yau ST, Vekilov PG.
PMID: 12689079
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Mar;67(3):031606. doi: 10.1103/PhysRevE.67.031606. Epub 2003 Mar 25.

In studies of crystal formation by the generation and spreading of layers, equidistant step trains are considered unstable-bunches and other spatiotemporal patterns of the growth steps are viewed as ubiquitous. We provide an example to the opposite. We monitor...

Nucleation.

Crystal growth & design

Vekilov PG.
PMID: 21132117
Cryst Growth Des. 2010 Nov 15;10(12):5007-5019. doi: 10.1021/cg1011633.

Crystallization starts with nucleation and control of nucleation is crucial for the control of the number, size, perfection, polymorphism and other characteristics of crystalline materials. This is particularly true for crystallization in solution, which is an essential part of...

Elastic phase transitions in metals at high pressures.

Journal of physics. Condensed matter : an Institute of Physics journal

Krasilnikov OM, Vekilov YK, Mosyagin IY, Isaev EI, Bondarenko NG.
PMID: 22517052
J Phys Condens Matter. 2012 May 16;24(19):195402. doi: 10.1088/0953-8984/24/19/195402. Epub 2012 Apr 19.

The elastic phase transitions of cubic metals at high pressures are investigated within the framework of Landau theory. It is shown that at pressures comparable with the magnitude of the bulk modulus the phase transition is connected with the...

Showing 1 to 12 of 34 entries