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Spherical-cap-shaped interfacial nanobubbles (NBs) forming on hydrophobic surfaces in aqueous solutions have extensively been studied both from a fundamental point of view and due to their relevance for various practical applications. In…

流体动力学 · 物理学 2022-08-18 Yuliang Wang , Xiaolai Li , Shuai Ren , Hadush Tedros Alem , Lijun Yang , Detlef Lohse

We model and simulate a nanopore sensor that selectively binds analyte ions. This binding leads to the modulation of the local concentrations of the ions of the background electrolyte (KCl), and, thus, to the modulation of the ionic current…

应用物理 · 物理学 2019-11-07 Eszter Mádai , Mónika Valiskó , Dezső Boda

We use a simple and efficient computer model to investigate the physical properties of bilayer membranes. The amphiphilic molecules are modeled as short rigid trimers with finite range pair interactions between them. The pair potentials…

软凝聚态物质 · 物理学 2009-11-10 Oded Farago

We develop a multi-scale approach to simulate hydrated nanobio systems under realistic condi- tions (e.g., nanoparticles and protein solutions at physiological conditions over time-scales up to hours). We combine atomistic simulations of…

软凝聚态物质 · 物理学 2017-07-05 Oriol Vilanova , Valentino Bianco , Giancarlo Franzese

We have developed a method to simulate behavior of nanoporous materials in a molecular dynamics code. The nanoporous solid is produced via a spinodal decomposition of a material brought from a supercritical fluid into the two phase…

材料科学 · 物理学 2008-07-10 Mark Duchaineau , Alex V. Hamza , Tomas Diaz De La Rubia , Farid F. Abraham

Membrane proteins often need to be inserted into or attached on the cell membrane to perform their functions. Understanding their transmembrane topology and conformational dynamics during insertion is crucial for elucidating their roles.…

生物物理 · 物理学 2024-12-30 C. Yang , D. Ma , S. Hu , M. Li , Y. Lu

Biosensors are essential tools which have been traditionally used to monitor environmental pollution, detect the presence of toxic elements and biohazardous bacteria or virus in organic matter and biomolecules for clinical diagnostics. In…

化学物理 · 物理学 2021-01-08 Aishwaryadev Banerjee , Swagata Maity , Carlos H. Mastrangelo

Organic-inorganic nanohybrids have been synthesized by in-situ coating of self-assembled, nanotubular J-aggregates with helically wound silica ribbons. The J-aggregates retain their outstanding optical properties in the nanohybrids, but…

化学物理 · 物理学 2015-02-03 Yan Qiao , Frank Polzer , Holm Kirmse , Stefan Kirstein , Jürgen P. Rabe

Researchers are currently exploring nanoporous two-dimensional materials, such as hexagonal boron nitride (hBN), as potential desalination membranes. Here, we study the effect of grain boundaries (GBs) and interfacial electrostatic…

材料科学 · 物理学 2022-02-22 Ananth Govind Rajan , Bharat Bhushan Sharma

We investigate the microscopic contact of a cell/semiconductor hybrid. The semiconductor is nanostructured with the aim of single channel recording of ion channels in cell membranes. This approach will overcome many limitations of the…

软凝聚态物质 · 物理学 2007-05-23 N. Fertig , A. Tilke , R. H. Blick , J. P. Kotthaus , J. C. Behrends , G. ten Bruggencate

Nanoconfined water plays an indispensable role in various phenomena in biology, chemistry, and engineering. It exhibits many abnormal properties compared to bulk water, especially under strong confinement. However, the origin of those…

Membrane organization is essential for cellular functions such as signal transduction and membrane trafficking. A major challenge is to understand the lateral heterogeneous structures in membranes and membrane fluidity in the presence of…

软凝聚态物质 · 物理学 2007-11-09 Chun-Lai Ren , Yu-qiang Ma

Biomolecular condensates form by phase separation of biological polymers and have important functions in the cell $-$ functions that are inherently connected to their physical properties. A remarkable aspect of such condensates is that…

Intelligent metamaterials have attracted widespread research interest due to their self-adaptive capabilities and controllability. They hold great potential for advancing fluid control by providing responsive and flexible solutions.…

流体动力学 · 物理学 2024-12-05 Fubao Yang , Yuhong Zhou , Peng Jin , Liujun Xu , Gaole Dai , Jiping Huang

Supported Lipid Bilayers (SLBs) are model membranes formed at solid substrate surfaces. This architecture renders the membrane experimentally accessible to surface sensitive techniques used to study their properties, including Atomic Force…

生物物理 · 物理学 2019-11-19 James A. Goodchild , Danielle L. Walsh , Simon D. Connell

Biomembranes and vesicles consisting of multiple phases can attain a multitude of shapes, undergoing complex shape transitions. We study a Cahn--Hilliard model on an evolving hypersurface coupled to Navier--Stokes equations on the surface…

数值分析 · 数学 2019-11-01 John W. Barrett , Harald Garcke , Robert Nürnberg

Using a coarse-grained bead-spring model of flexible polymer chains, the structure of a polymeric nanodroplet adsorbed on a chemically decorated flat wall is investigated by means of Molecular Dynamics simulation. We consider sessile drops…

软凝聚态物质 · 物理学 2009-11-10 J. Yaneva , A. Milchev , K. Binder

Although promising for biomedicine, the clinical translation of inorganic nanoparticles (NPs) is limited by low biocompatibility and stability in biological fluids. A common strategy to circumvent this drawback consists in disguising the…

Cellulose is one of the most versatile substances in the world. Its immense variety of applications was in recent years complemented by interesting nanotechnological applications. The fabrication of complex cellulose-based materials asks…

材料科学 · 物理学 2013-07-23 Reinhard J. Maurer , Alexander F. Sax , Volker Ribitsch

We investigate the process of biopolymer translocation through a narrow pore using a multiscale approach which explicitly accounts for the hydrodynamic interactions of the molecule with the surrounding solvent. The simulations confirm that…

生物物理 · 物理学 2009-01-16 Maria Fyta , Simone Melchionna , Sauro Succi , Efthimios Kaxiras