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Over the past decade, experimental microscopy and spectroscopy have made significant progress in the study of the morphological, optical, electronic and transport properties of materials. These developments include higher spatial…

材料科学 · 物理学 2025-02-12 Simone Taioli , Maurizio Dapor

Dispersed colloidal particles within a suspension can aggregate and spontaneously self-organize into a robust, percolating structure known as a gel. These network-like structures are prevalent in nature and play a critical role in many…

软凝聚态物质 · 物理学 2025-04-29 David Richard , Mehdi Bouzid

Radiation damage is an unavoidable process when performing structural investigations of biological macromolecules with X-ray sources. In crystallography this process can be limited through damage distribution in a crystal, while for single…

Current-free double layers of the type reported in plasmas in the presence of an expanding magnetic field [C. Charles and R. W. Boswell, Appl. Phys. Lett. 82, 1356 (2003)] are modeled theoretically and with particle-in-cell/Monte Carlo…

等离子体物理 · 物理学 2015-06-12 S. D. Baalrud , T. Lafleur , R. W. Boswell , C. Charles

A continuum electromechanical model is proposed to describe the membrane curvature induced by electrostatic interactions in a solvated protein-membrane system. The model couples the macroscopic strain energy of membrane and the…

定量方法 · 定量生物学 2015-05-19 Y. C. Zhou , Benzhuo Lu , Alemayehu A. Gorfe

We have investigated the effect of particle shape on the eletrorotation (ER) spectrum of living cells suspensions. In particular, we consider coated oblate spheroidal particles and present a theoretical study of ER based on the spectral…

软凝聚态物质 · 物理学 2018-01-17 J. P. Huang , K. W. Yu

``Shear softening" refers to the observed reduction in shear modulus when the stress on an amorphous solid is increased beyond the initial linear region. Careful numerical quasi-static simulations reveal an intimate relation between plastic…

软凝聚态物质 · 物理学 2013-12-17 Vijayakumar Chikkadi , Oleg Gendelman , Valery Ilyin , J Ashwin , Itamar Procaccia

Predicting the mechanical response of the soft gel materials under external deformation is of paramount importance in many areas, such as foods, pharmaceuticals, solid-liquid separations, cosmetics, aerogels and drug delivery. Most of the…

软凝聚态物质 · 物理学 2023-05-22 Divas Singh Dagur , Yezaz Ahmed Gadi Man , Saikat Roy

Several cellular activities, such as directed cell migration, are coordinated by an intricate network of biochemical reactions which lead to a polarised state of the cell, in which cellular symmetry is broken, causing the cell to have a…

A simple non-interacting-electron model, combining local quantum tunneling and global classical percolation (due to a finite dephasing time at low temperatures), is introduced to describe a metal-insulator transition in two dimensions. It…

介观与纳米尺度物理 · 物理学 2009-10-31 Yigal Meir

We present a study on connectivity percolation in suspensions of hard platelets by means of Monte Carlo simulation. We interpret our results using a contact-volume argument based on an effective single--particle cell model. It is commonly…

软凝聚态物质 · 物理学 2015-06-04 Maneesh Mathew , Tanja Schilling , Martin Oettel

This paper investigates the problem of electrophoretic motion of a polyelectrolyte capsule with a porous arbitrary charged conducting shell in an electrolyte under the action of an external electric field. The corresponding boundary value…

流体动力学 · 物理学 2021-08-11 Anatoly N. Filippov , Daria Yu. Khanukaeva , Petr A. Aleksandrov

Proposals to determine biomolecular structures from diffraction experiments using femtosecond X-ray free-electron laser (XFEL) pulses involve a conflict between the incident brightness required to achieve diffraction-limited atomic…

光学 · 物理学 2015-05-19 Harry M. Quiney , Keith A. Nugent

We present a review of the basic ideas and techniques of the spectral density functional theory which are currently used in electronic structure calculations of strongly-correlated materials where the one-electron description breaks down.…

强关联电子 · 物理学 2009-11-11 G. Kotliar , S. Y. Savrasov , K. Haule , V. S. Oudovenko , O. Parcollet , C. A. Marianetti

Cell migration in confining physiological environments relies on the concerted dynamics of several cellular components, including protrusions, adhesions with the environment, and the cell nucleus. However, it remains poorly understood how…

Maximum entropy principle (MEP) analysis with few non-zero effective interactions successfully characterizes the distribution of dynamical states of pulse-coupled networks in many experiments, e.g., in neuroscience. To better understand the…

生物物理 · 物理学 2019-01-17 Zhi-Qin John Xu , Douglas Zhou , David Cai

Spiral (gyrotropic) percolation which is related to the behavior of an electron system in strong magnetic fields is studied. It is shown that the scaling behavior area near the percolation threshold is anomalously narrow. The percolation…

凝聚态物理 · 物理学 2007-05-23 S. N. Dorogovtsev

We have fabricated Pt-containing granular metals by focused electron beam induced deposition from the $(CH_3)_3CH_3C_5H_4Pt$ precursor gas. The granular metals are made of platinum nanocrystallites embedded in a carbonaceous matrix. We have…

材料科学 · 物理学 2015-05-27 F. Porrati , R. Sachser , C. H. Schwalb , A. S. Frangakis , M. Huth

We explore layered strongly correlated materials as a platform to identify and control unconventional heat transfer phenomena. We demonstrate that these systems can be tailored to sustain a wide spectrum of heat transport regimes, ranging…

强关联电子 · 物理学 2021-11-29 Giacomo Mazza , Marco Gandolfi , Massimo Capone , Francesco Banfi , Claudio Giannetti

Epithelial cell monolayers exhibit traveling mechanical waves. We rationalize this observation thanks to a hydrodynamic description of the monolayer as a compressible, active and polar material. We show that propagating waves of the cell…

生物物理 · 物理学 2018-10-01 Shunsuke Yabunaka , Philippe Marcq