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Showing 1 to 12 of 292 entries
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Polylactic acid nano- and microchamber arrays for encapsulation of small hydrophilic molecules featuring drug release via high intensity focused ultrasound.

Nanoscale

Gai M, Frueh J, Tao T, Petrov AV, Petrov VV, Shesterikov EV, Tverdokhlebov SI, Sukhorukov GB.
PMID: 28513733
Nanoscale. 2017 Jun 01;9(21):7063-7070. doi: 10.1039/c7nr01841j.

Long term encapsulation combined with spatiotemporal release for a precisely defined quantity of small hydrophilic molecules on demand remains a challenge in various fields ranging from medical drug delivery, controlled release of catalysts to industrial anti-corrosion systems. Free-standing individually...

Protective composite silica/polyelectrolyte shell with enhanced tolerance to harsh acid and alkali conditions.

Journal of colloid and interface science

Gao H, Nazar T, Hu Z, Wen D, Sukhorukov GB.
PMID: 29059552
J Colloid Interface Sci. 2018 Feb 15;512:198-207. doi: 10.1016/j.jcis.2017.10.038. Epub 2017 Oct 12.

Here we report a facile method to fabricate composite polymeric/inorgainc shells consisting of poly(allylamine hydrochloride) (PAH)/poly-(sodium 4-styrenesulfonate) (PSS) multilayers strengthed by the in situ formed silica (SiO

Direct Spectroscopic detection of the orientation of free OH groups in methyl lactate-(water)(1,2) clusters: hydration of a chiral hydroxy ester.

Angewandte Chemie (International ed. in English)

Thomas J, Sukhorukov O, Jäger W, Xu Y.
PMID: 24307638
Angew Chem Int Ed Engl. 2014 Jan 20;53(4):1156-9. doi: 10.1002/anie.201308466. Epub 2013 Dec 04.

Hydration of chiral molecules is a subject of significant current interest in light of recent experimental observations of chirality transfer from chiral solutes to water in solution and the important roles which water plays in biological events. Using a...

Parity-time anti-symmetric parametric amplifier.

Optics letters

Antonosyan DA, Solntsev AS, Sukhorukov AA.
PMID: 26469567
Opt Lett. 2015 Oct 15;40(20):4575-8. doi: 10.1364/OL.40.004575.

We describe the process of parametric amplification in a directional coupler of quadratically nonlinear and lossy waveguides, which belongs to a class of optical systems with spatial parity-time (PT) symmetry in the linear regime. We identify a distinct spectral...

Precipitation of inorganic salts inside hollow micrometer-sized polyelectrolyte shells.

Journal of colloid and interface science

Sukhorukov GB, Susha AS, Davis S, Leporatti S, Donath E, Hartmann J, Möhwald H.
PMID: 16290462
J Colloid Interface Sci. 2002 Mar 01;247(1):251-4. doi: 10.1006/jcis.2001.8102.

Hollow polymer shells formed by layer-by-layer adsorption of oppositely charged polyelectrolytes onto micrometer-sized colloidal particles with subsequent decomposition of the colloidal core were employed as a model system for the study of inorganic crystallization reactions in restricted volumes. The...

Slow-light switching in nonlinear Bragg-grating couplers.

Optics letters

Ha S, Sukhorukov AA, Kivshar YS.
PMID: 17546144
Opt Lett. 2007 Jun 01;32(11):1429-31. doi: 10.1364/ol.32.001429.

We study propagation and switching of slow-light pulses in nonlinear couplers with phase-shifted Bragg gratings. We demonstrate that power-controlled nonlinear self-action of light can be used to compensate for dispersion-induced broadening of pulses through the formation of gap solitons,...

Soliton dynamics in deformable nonlinear lattices.

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

Sukhorukov AA.
PMID: 17025556
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Aug;74(2):026606. doi: 10.1103/PhysRevE.74.026606. Epub 2006 Aug 21.

We describe wave propagation and soliton localization in photonic lattices, which are induced in a nonlinear medium by an optical interference pattern, taking into account the inherent lattice deformations at the soliton location. We obtain exact analytical solutions and...

Thermal behavior of polyelectrolyte multilayer microcapsules: 2. Insight into molecular mechanisms for the PDADMAC/PSS system.

The journal of physical chemistry. B

Köhler K, Möhwald H, Sukhorukov GB.
PMID: 17125370
J Phys Chem B. 2006 Nov 30;110(47):24002-10. doi: 10.1021/jp062907a.

Polyelectrolyte multilayer capsules consisting of poly(diallyldimethylammonium chloride) (PDADMAC) and poly(styrene sulfonate) (PSS) were used as a model system to study the temperature-dependent behavior of polyelectrolyte multilayer films in aqueous media. Shells terminated with PSS shrink upon heating, whereas PDADMAC-terminated...

Bifurcations and stability of gap solitons in periodic potentials.

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

Pelinovsky DE, Sukhorukov AA, Kivshar YS.
PMID: 15524667
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Sep;70(3):036618. doi: 10.1103/PhysRevE.70.036618. Epub 2004 Sep 30.

We analyze the existence, stability, and internal modes of gap solitons in nonlinear periodic systems described by the nonlinear Schrödinger equation with a sinusoidal potential, such as photonic crystals, waveguide arrays, optically-induced photonic lattices, and Bose-Einstein condensates loaded onto...

Enhanced soliton transport in quasiperiodic lattices with introduced aperiodicity.

Physical review letters

Sukhorukov AA.
PMID: 16605822
Phys Rev Lett. 2006 Mar 24;96(11):113902. doi: 10.1103/PhysRevLett.96.113902. Epub 2006 Mar 23.

We study linear transmission and nonlinear soliton transport through quasiperiodic structures, where the lattice profiles are described by multiple modulation frequencies. We show that resonant scattering at mixed-frequency resonances limits transmission efficiency of localized wave packets, leading to radiation...

Slow-light optical bullets in arrays of nonlinear Bragg-grating waveguides.

Physical review letters

Sukhorukov AA, Kivshar YS.
PMID: 17280202
Phys Rev Lett. 2006 Dec 08;97(23):233901. doi: 10.1103/PhysRevLett.97.233901. Epub 2006 Dec 04.

We demonstrate that propagation direction and velocity of optical pulses can be controlled independently in the structures with multiscale modulation of the refractive index in transverse and longitudinal directions. We reveal that, in arrays of waveguides with phase-shifted Bragg...

Controlled generation and steering of spatial gap solitons.

Physical review letters

Neshev D, Sukhorukov AA, Hanna B, Krolikowski W, Kivshar YS.
PMID: 15447189
Phys Rev Lett. 2004 Aug 20;93(8):083905. doi: 10.1103/PhysRevLett.93.083905. Epub 2004 Aug 19.

We demonstrate the first fully controlled generation of immobile and slow spatial gap solitons in nonlinear periodic systems with band-gap spectra, and observe the key features of gap solitons that distinguish them from discrete solitons, including a dynamical transformation...

Showing 1 to 12 of 292 entries