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Showing 1 to 12 of 85 entries
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Controlling dispersion forces between small particles with artificially created random light fields.

Nature communications

Brügger G, Froufe-Pérez LS, Scheffold F, José Sáenz J.
PMID: 26096622
Nat Commun. 2015 Jun 22;6:7460. doi: 10.1038/ncomms8460.

Appropriate combinations of laser beams can be used to trap and manipulate small particles with optical tweezers as well as to induce significant optical binding forces between particles. These interaction forces are usually strongly anisotropic depending on the interference...

The liquid-glass-jamming transition in disordered ionic nanoemulsions.

Scientific reports

Braibanti M, Kim HS, Şenbil N, Pagenkopp MJ, Mason TG, Scheffold F.
PMID: 29118340
Sci Rep. 2017 Nov 08;7(1):13879. doi: 10.1038/s41598-017-13584-w.

In quenched disordered out-of-equilibrium many-body colloidal systems, there are important distinctions between the glass transition, which is related to the onset of nonergodicity and loss of low-frequency relaxations caused by crowding, and the jamming transition, which is related to...

Trace-Element Incorporation into Intracellular Pools Uncovers Calcium-Pathways in a Coccolithophore.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

Gal A, Sviben S, Wirth R, Schreiber A, Lassalle-Kaiser B, Faivre D, Scheffel A.
PMID: 29051853
Adv Sci (Weinh). 2017 Jul 05;4(10):1700088. doi: 10.1002/advs.201700088. eCollection 2017 Oct.

Many organisms form minerals from precursor phases that crystallize under strict biological control. The dynamic intracellular processes of formation, transport, and deposition of these precursor phases are challenging to identify. An unusual situation is recently revealed for the calcifying...

Immune Responses to Broad-Spectrum Antibiotic Treatment and Fecal Microbiota Transplantation in Mice.

Frontiers in immunology

Ekmekciu I, von Klitzing E, Fiebiger U, Escher U, Neumann C, Bacher P, Scheffold A, Kühl AA, Bereswill S, Heimesaat MM.
PMID: 28469619
Front Immunol. 2017 Apr 19;8:397. doi: 10.3389/fimmu.2017.00397. eCollection 2017.

Compelling evidence demonstrates the pivotal role of the commensal intestinal microbiota in host physiology and the detrimental effects of its perturbations following antibiotic treatment. Aim of this study was to investigate the impact of antibiotics induced depletion and subsequent...

Gas-Chromatography Mass-Spectrometry (GC-MS) Based Metabolite Profiling Reveals Mannitol as a Major Storage Carbohydrate in the Coccolithophorid Alga Emiliania huxleyi.

Metabolites

Obata T, Schoenefeld S, Krahnert I, Bergmann S, Scheffel A, Fernie AR.
PMID: 24957896
Metabolites. 2013 Mar 11;3(1):168-84. doi: 10.3390/metabo3010168.

Algae are divergent organisms having a wide variety of evolutional histories. Although most of them share photosynthetic activity, their pathways of primary carbon metabolism are rather diverse among species. Here we developed a method for gas chromatography-mass spectroscopy (GC-MS)...

Diffusing-wave spectroscopy of nonergodic media.

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

Scheffold F, Skipetrov SE, Romer S, Schurtenberger P.
PMID: 11415101
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Jun;63(6):061404. doi: 10.1103/PhysRevE.63.061404. Epub 2001 May 23.

We introduce an elegant method that allows the application of diffusing-wave spectroscopy (DWS) to nonergodic, solidlike samples. The method is based on the idea that light transmitted through a sandwich of two turbid cells can be considered ergodic even...

Brushlike interactions between thermoresponsive microgel particles.

Physical review letters

Scheffold F, Díaz-Leyva P, Reufer M, Ben Braham N, Lynch I, Harden JL.
PMID: 20366570
Phys Rev Lett. 2010 Mar 26;104(12):128304. doi: 10.1103/PhysRevLett.104.128304. Epub 2010 Mar 26.

Using a simplified microstructural picture we show that interactions between thermosensitive microgel particles can be described by a polymer brushlike corona decorating the dense core. The softness of the potential is set by the relative thickness L0 of the...

Giant enhanced diffusion of gold nanoparticles in optical vortex fields.

Nano letters

Albaladejo S, Marqués MI, Scheffold F, Sáenz JJ.
PMID: 19673533
Nano Lett. 2009 Oct;9(10):3527-31. doi: 10.1021/nl901745a.

We study the diffusion of a metal nanoparticle in the nonconservative force field of an optical vortex lattice. Radiation pressure in the vortex array is shown to induce a giant enhancement over the free thermal diffusion. Langevin dynamics simulations...

Noise in laser speckle correlation and imaging techniques.

Optics express

Skipetrov SE, Peuser J, Cerbino R, Zakharov P, Weber B, Scheffold F.
PMID: 20639937
Opt Express. 2010 Jul 05;18(14):14519-34. doi: 10.1364/OE.18.014519.

We study the noise of the intensity variance and of the intensity correlation and structure functions measured in light scattering from a random medium in the case when these quantities are obtained by averaging over a finite number N...

Effect of a marginal inclination on pattern formation in a binary liquid mixture under thermal stress.

Physical review letters

Croccolo F, Scheffold F, Vailati A.
PMID: 23863004
Phys Rev Lett. 2013 Jul 05;111(1):014502. doi: 10.1103/PhysRevLett.111.014502. Epub 2013 Jul 03.

Convective motions in a fluid layer are affected by its orientation with respect to the gravitational field. We investigate the long-term stability of a thermally stressed layer of a binary liquid mixture and show that pattern formation is strongly...

Deposition of nonsarcomeric alpha-actinin in cardiomyocytes from patients with dilated cardiomyopathy or chronic pressure overload.

Experimental and clinical cardiology

Hein S, Block T, Zimmermann R, Kostin S, Scheffold T, Kubin T, Klövekorn WP, Schaper J.
PMID: 20098571
Exp Clin Cardiol. 2009;14(3):e68-75.

Nonsarcomeric alpha-actinin (ACTN-1)-positive clusters have been detected in human myocardium structurally jeopardized by dilated cardiomyopathy, hypertrophy due to aortic stenosis, or chronic hibernation, but have never been detected in normal tissue. To systematically investigate these clusters, immunohistochemistry, electron microscopy,...

Soluble P-selectin and matrix metalloproteinase 2 levels are elevated in patients with diastolic dysfunction independent of glucose metabolism disorder or coronary artery disease.

Experimental and clinical cardiology

Füth R, Dinh W, Nickl W, Bansemir L, Barroso MC, Bufe A, Sause A, Scheffold T, Krahn T, Ellinghaus P, Lankisch M.
PMID: 20098572
Exp Clin Cardiol. 2009;14(3):e76-9.

OBJECTIVE: The development of diastolic dysfunction (DDF) is multifactorial. Possible mechanisms include metabolic disturbances, myocardial fibrosis, chronic inflammation and endothelial dysfunction. Recognizing early stages of DDF may help to identify patients at risk of developing symptomatic DDF. Therefore, biomarkers...

Showing 1 to 12 of 85 entries