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We show that skyrmions on the surface of a magnetic topological insulator may experience an attractive interaction that leads to the formation of a skyrmion-skyrmion bound state. This is in contrast to the case of skyrmions in a…

Mesoscale and Nanoscale Physics · Physics 2019-09-13 Kunal L. Tiwari , J. Lavoie , T. Pereg-Barnea , W. A. Coish

Synthetic biological macromolecule of magnetoferritin containing an iron oxide core inside a protein shell (apoferritin) is prepared with different content of iron. Its structure in aqueous solution is analyzed by small-angle synchrotron…

Biological membranes are essential for the cell life and hydration water provides the driving force for their assembly and stability. Here we study the structural properties of water in a phospholipid membrane. We characterize local…

Soft Condensed Matter · Physics 2017-03-24 Fausto Martelli , Hsin-Yu Ko , Carles Calero Borallo , Giancarlo Franzese

Recent experimental results by the Surface Force Apparatus (SFA) have identified a dramatic deviation from previously established theories of simple electrolytes. This deviation, referred to as anomalous underscreening, suggests that the…

Soft Condensed Matter · Physics 2025-08-05 David Ribar , Clifford E. Woodward , Jan Forsman

Engineered inorganic nanoparticles are essential components in the development of nanotechnologies. For applications in nanomedicine, particles need to be functionalized to ensure a good dispersibility in biological fluids. In many cases…

Materials Science · Physics 2011-08-25 M. Safi , J. Courtois , M. Seigneuret , H. Conjeaud , J. -F. Berret

Phospholipid monolayers at the air-water interface serve as model systems for various biological interfaces, e.g. lung surfactant layers and outer leaflets of cell membranes. Although the dynamical (viscoelastic) properties of these…

Fluid Dynamics · Physics 2009-11-19 Siyoung Q. Choi , Todd M. Squires

Experiments using the Surface Force Apparatus (SFA) have found anomalously long-ranged interactions between charged surfaces in concentrated salt solutions. Ion clustering have been suggested as a possible origin of this behaviour. In this…

Soft Condensed Matter · Physics 2025-08-05 David Ribar , Clifford E. Woodward , Jan Forsman

RNA duplex stability depends strongly on ionic conditions, and inside cells RNAs are exposed to both monovalent and multivalent ions. Despite recent advances, we do not have general methods to quantitatively account for the effects of…

Biomolecules · Quantitative Biology 2013-07-02 C. V. Bizarro , A. Alemany , F. Ritort

Multiexponential T2 (MET2) Relaxometry and Magnetization Transfer (MT) are among the most promising MRI-derived techniques for white matter (WM) characterization. Both techniques are shown to have histologically correlated sensitivity to…

Medical Physics · Physics 2019-03-26 Teresa Serradas Duarte , Noam Shemesh

The current management of critical size bone defects (CSBDs) remains challenging and requires multiple surgeries. To reduce the number of surgeries, wrapping a biodegradable fibrous membrane around the defect to contain the graft and carry…

Tissues and Organs · Quantitative Biology 2021-01-07 Heather E. Owston , Katrina M. Moisley , Giuseppe Tronci , Stephen J. Russell , Peter V. Giannoudis , Elena Jones

Self-assembling peptides (SAPs) have shown to offer great promise in therapeutics and have the ability to undergo self-assembly and form ordered nanostructures. However SAP gels are often associated with inherent weak and transient…

The contribution of electrostatic interactions to the free energy of binding between model protein and a ceramic implant surface in the aqueous solvent, considered in the framework of the non-local electrostatic model, is calculated as a…

Biological Physics · Physics 2014-07-29 A. I. Rubinstein , R. F. Sabirianov , F. Namavar

We found that the specific dispersion of metal-insulator-metal (MIM) waveguide allows the hybridization of surface plasmon polaritons (SPPs) and the waveguide, which is not possible with dielectric waveguides. The SPP-MIM hybridization…

Because of the potential link between -1 programmed ribosomal frameshifting and response of a pseudoknot (PK) RNA to force, a number of single molecule pulling experiments have been performed on PKs to decipher the mechanism of programmed…

Biomolecules · Quantitative Biology 2016-06-22 Naoto Hori , Natalia A. Denesyuk , D. Thirumalai

The utility of non functionalized poly(N-isopropylacrylamide) (pNIPAM) microgels in physiological and environmental applications is strictly dependent on their reversible thermoresponsiveness and stability in saline media. Despite their…

Soft Condensed Matter · Physics 2026-03-31 Syamjith KS , Alan Ranjit Jacob

The interpretation electrical phenomena in biomembranes is usually based on the assumption that the experimentally found discrete ion conduction events are due to a particular class of proteins called ion channels while the lipid membrane…

Biological Physics · Physics 2010-06-17 Thomas Heimburg

The binding of small metal ions to complex macromolecular structures is typically dominated by strong local interactions of the ion with its nearest ligands. For this reason, it is often possible to understand the microscopic origin of ion…

Biomolecules · Quantitative Biology 2012-02-23 Benoit Roux

Membranes selective to ions of the same charge are increasingly sought for wastewater processing and valuable element recovery. However, while narrow channels are known to be essential, other membrane parameters remain difficult to identify…

The activity of cell membrane inclusions (such as ion channels) is influenced by the host lipid membrane, to which they are elastically coupled. This coupling concerns the hydrophobic thickness of the bilayer (imposed by the length of the…

Soft Condensed Matter · Physics 2018-06-24 Florent Bories , Doru Constantin , Paolo Galatola , Jean-Baptiste Fournier

Recent surveys have shown that the number of nanoparticle-based formulations actually used at the clinical level is significantly lower than expected a decade ago. One reason for this is that the nanoparticle physicochemical properties fall…