ArticlePhysical chemistry chemical physics : PCCP2011
Atomistic simulation of lipid and DiI dynamics in membrane bilayers under tension.
Article in Physical chemistry chemical physics : PCCP, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 71 citations in OpenAlex.
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- DPPC Membrane Under Lateral Compression and Stretching to Extreme Limits: Phase Transitions and Rupture.Membranes · 2025Article
- Neutron spin echo shows pHLIP is capable of retarding membrane thickness fluctuations.Biochimica et biophysica acta. Biomembranes · 2024Article
- Assessing hypoxic damage to placental trophoblasts by measuring membrane viscosity of extracellular vesicles.Placenta · 2022Article
- The Secret Lives of Fluorescent Membrane Probes as Revealed by Molecular Dynamics Simulations.Molecules (Basel, Switzerland) · 2020Review
- Tip-Enhanced Infrared Difference-Nanospectroscopy of the Proton Pump Activity of Bacteriorhodopsin in Single Purple Membrane Patches.Nano letters · 2019Article
- Intracellular ion and protein nanoparticle-induced osmotic pressure modify astrocyte swelling and brain edema in response to glutamate stimuli.Redox biology · 2019Article
- Distribution of mechanical stress in the Escherichia coli cell envelope.Biochimica et biophysica acta. Biomembranes · 2018Article
- Accurate In Silico Modeling of Asymmetric Bilayers Based on Biophysical Principles.Biophysical journal · 2018Article
- Atomistic-level study of the interactions between hIAPP protofibrils and membranes: Influence of pH and lipid composition.Biochimica et biophysica acta. Biomembranes · 2018Article
- Osmosensing by the bacterial PhoQ/PhoP two-component system.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- GsMTx4: Mechanism of Inhibiting Mechanosensitive Ion Channels.Biophysical journal · 2017Article
- Experimental Estimation of Membrane Tension Induced by Osmotic Pressure.Biophysical journal · 2016Article
- The role of substrate topography on the cellular uptake of nanoparticles.Journal of biomedical materials research. Part B, Applied biomaterials · 2016Article
- Physical Principles of Nanoparticle Cellular Endocytosis.ACS nano · 2015Review
- Atomistic simulation studies of the α/β-glucoside and galactoside in anhydrous bilayers: effect of the anomeric and epimeric configurations.Journal of molecular modeling · 2014Article
- Limited perturbation of a DPPC bilayer by fluorescent lipid probes: a molecular dynamics study.The journal of physical chemistry. B · 2013Article
- Effect of membrane tension on the physical properties of DOPC lipid bilayer membrane.Biochimica et biophysica acta · 2012Article
- Quantitative scheme for full-field polarization rotating fluorescence microscopy using a liquid crystal variable retarder.The Review of scientific instruments · 2012Article
- Tuning membrane phase separation using nonlipid amphiphiles.Biophysical journal · 2012Article
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Authors and funding
4 authors at 2 institutions in 1 country.
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Abstract
Membrane tension modulates cellular processes by initiating changes in the dynamics of its molecular constituents. To quantify the precise relationship between tension, structural properties of the membrane, and the dynamics of lipids and a lipophilic reporter dye, we performed atomistic molecular dynamics (MD) simulations of DiI-labeled dipalmitoylphosphatidylcholine (DPPC) lipid bilayers under physiological lateral tensions ranging from -2.6 mN m(-1) to 15.9 mN m(-1). Simulations showed that the bilayer thickness decreased linearly with tension consistent with volume-incompressibility, and this thinning was facilitated by a significant increase in acyl chain interdigitation at the bilayer midplane and spreading of the acyl chains. Tension caused a significant drop in the bilayer's peak electrostatic potential, which correlated with the strong reordering of water and lipid dipoles. For the low tension regime, the DPPC lateral diffusion coefficient increased with increasing tension in accordance with free-area theory. For larger tensions, free area theory broke down due to tension-induced changes in molecular shape and friction. Simulated DiI rotational and lateral diffusion coefficients were lower than those of DPPC but increased with tension in a manner similar to DPPC. Direct correlation of membrane order and viscosity near the DiI chromophore, which was just under the DPPC headgroup, indicated that measured DiI fluorescence lifetime, which is reported to decrease with decreasing lipid order, is likely to be a good reporter of tension-induced decreases in lipid headgroup viscosity. Together, these results offer new molecular-level insights into membrane tension-related mechanotransduction and into the utility of DiI in characterizing tension-induced changes in lipid packing.
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