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Monte Carlo (MC) Simulations, Differential Scanning Calorimetry (DSC) and Fourier Transform InfraRed (FTIR) spectroscopy were used to study the melting behavior of single lipid components in two-component membranes of…

Biological Physics · Physics 2009-06-11 M. Fidorra , T. Heimburg , H. M. Seeger

We present a novel method for analyzing Small Angle X-ray Scattering data on multilamellar phospholipid bilayer systems at full hydration. The method utilizes a modified Caille' theory structure factor in combination with a Gaussian model…

Biological Physics · Physics 2009-11-06 Georg Pabst , Michael Rappolt , Heinz Amenitsch , Peter Laggner

A question of considerable interest to cell membrane biology is whether phase segregated domains across an asymmetric bilayer are strongly correlated with each other and whether phase segregation in one leaflet can induce segregation in the…

Biological Physics · Physics 2015-06-17 Anirban Polley , Satyajit Mayor , Madan Rao

We construct a coarse-grained (CG) model for dipalmitoylphosphatidylcholine (DPPC)/cholesterol bilayers and apply it to large-scale simulation studies of lipid membranes. Our CG model is a two-dimensional representation of the membrane,…

Soft Condensed Matter · Physics 2009-11-10 Teemu Murtola , Emma Falck , Michael Patra , Mikko Karttunen , Ilpo Vattulainen

A biomimetic model of cell-cell communication was developed to probe the passive molecular transport across ion channels inserted in synthetic lipid bilayers formed between contacting droplets arranged in a linear array. Diffusion of a…

Biological Physics · Physics 2019-08-28 Manon Valet , Léa-Laetitia Pontani , Raphaël Voituriez , Elie Wandersman , Alexis M. Prevost

A coarse-grained molecular model, which consists of a spherical particle and an orientation vector, is proposed to simulate lipid membrane on a large length scale. The solvent is implicitly represented by an effective attractive interaction…

Soft Condensed Matter · Physics 2015-05-20 Hiroshi Noguchi

Cationic lipid membranes are known to form compact complexes with DNA and to be effective as gene delivery agents both in vitro and in vivo. Here we employ molecular dynamics simulations for a detailed atomistic study of lipid bilayers…

Soft Condensed Matter · Physics 2009-11-10 A. A. Gurtovenko , Michael Patra , Mikko Karttunen , Ilpo Vattulainen

The phase separation in lipid bilayers that include negatively charged lipids is examined experimentally. We observed phase-separated structures and determined the membrane miscibility temperatures in several binary and ternary lipid…

Soft Condensed Matter · Physics 2014-10-16 Hiroki Himeno , Naofumi Shimokawa , Shigeyuki Komura , David Andelman , Tsutomu Hamada , Masahiro Takagi

The study of the structural behaviour of pure and multi-component lipids at various temperatures and the interaction of these multi-component lipids with pharmaceutically important drugs carry huge importance. Here, we investigated the…

Soft Condensed Matter · Physics 2021-03-26 Prantar Dutta , Debabrata Pramanik , Jayant K. Singh

We outline a strategy for quantitatively evaluating the conformational characteristics of self-assembled structures using the techniques of contrast variation small angle neutron scattering. By means of basis function expansion, a case…

Soft Condensed Matter · Physics 2021-10-27 Albert Y. Ho , Guan-Rong Huang , Wei-Ren Chen

We investigate with computer simulations the critical radius of pores in a lipid bilayer membrane. Ilton et al. (2016) recently showed that nucleated pores in a homopolymer film can increase or decrease in size, depending on whether they…

Soft Condensed Matter · Physics 2017-10-26 Clark Bowman , Mark Chaplain , Anastasios Matzavinos

We present the first inelastic neutron scattering study of the short wavelength dynamics in a phospholipid bilayer. We show that inelastic neutron scattering using a triple-axis spectrometer at the high flux reactor of the ILL yields the…

Soft Condensed Matter · Physics 2016-08-16 M. C. Rheinstädter , C. Ollinger , G. Fragneto , T. Salditt

The use of colloidal supported lipid bilayers (CSLBs) has recently been extended to create colloidal joints, that - in analogy to their macroscopic counterparts - can flexibly connect colloidal particles. These novel elements enable the…

Soft Condensed Matter · Physics 2018-12-20 Melissa Rinaldin , Ruben W. Verweij , Indrani Chakraborty , Daniela J. Kraft

The ordering of a multilayer consisting of DSPC bilayers on a silica sol substrate is studied within the model-independent approach to the reconstruction of profiles of the electron density from X-ray reflectometry data. It is found that…

Small-angle neutron and X-ray scattering, neutron backscattering and neutron time-of-flight spectroscopy are applied to reveal the structure of the ligand shell, the temperature-dependent diffusion properties and the phonon spectrum of PbS…

The paper presents a complete research cycle comprising continuum-based modeling, computational framework development, and validation setup to predict phase separation and surface hydrodynamics in lipid bilayer membranes. We starting with…

Numerical Analysis · Mathematics 2025-10-14 Maxim Olshanskii , Annalisa Quaini

Droplet interface bilayers are a convenient model system to study the physio-chemical properties of phospholipid bilayers, the major component of the cell membrane. The mechanical response of these bilayers to various external mechanical…

Biological Physics · Physics 2021-02-08 Yaoqi Huang , Vineeth Chandran Suja , Javier Tajuelo , Gerald G. Fuller

We investigate the influence of a non-ionic surfactant like polymer on phospholipid vesicles. Our results from cryogenic transmission electron microscopy (cryo-TEM), dynamic light scattering (DLS), small angle neutron and X-ray scattering…

Due to their large coherent scattering cross section, diamond nanoparticles (DNPs) are considered as a promising candidate material for a new neutron reflector. For investigation of scattering cross sections of packed samples, we have…

Instrumentation and Detectors · Physics 2020-07-17 Kenji Mishima , Toshiya Otomoa , Kazutaka Ikeda , Hidetoshi Ohshita

We have calculated the electron density maps of the ripple phase of dimyristoylphosphatidylcholine (DMPC) and palmitoyl-oleoyl phosphatidylcholine (POPC) multibilayers at different temperatures and fixed relative humidity. Our analysis…

Soft Condensed Matter · Physics 2009-10-31 Kheya Sengupta , V. A. Raghunathan , John Katsaras