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Artykuły w czasopismach na temat „Dynamic membranes”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Bezanilla, Magdalena, Amy S. Gladfelter, David R. Kovar, and Wei-Lih Lee. "Cytoskeletal dynamics: A view from the membrane." Journal of Cell Biology 209, no. 3 (2015): 329–37. http://dx.doi.org/10.1083/jcb.201502062.

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Many aspects of cytoskeletal assembly and dynamics can be recapitulated in vitro; yet, how the cytoskeleton integrates signals in vivo across cellular membranes is far less understood. Recent work has demonstrated that the membrane alone, or through membrane-associated proteins, can effect dynamic changes to the cytoskeleton, thereby impacting cell physiology. Having identified mechanistic links between membranes and the actin, microtubule, and septin cytoskeletons, these studies highlight the membrane’s central role in coordinating these cytoskeletal systems to carry out essential processes,

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2

Matkó, Janos, Janos Szöllösi, Lajos Trón, and Sandor Damjanovich. "Luminescence spectroscopic approaches in studying cell surface dynamics." Quarterly Reviews of Biophysics 21, no. 4 (1988): 479–544. http://dx.doi.org/10.1017/s0033583500004637.

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The major elements of membranes, such as proteins, lipids and polysaccharides, are in dynamic interaction with each other (Albertset al.1983). Protein diffusion in the lipid matrix of the membrane, the lipid diffusion and dynamic domain formation below and above their transition temperature from gel to fluid state, have many functional implications. This type of behaviour of membranes is often summarized in one frequently used word membrane fluidity (coined by Shinitzky & Henkart, 1979). The dynamic behaviour of the cell membrane includes rotational, translational and segmental movements o

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Madmoune, Y., M. Benhamou, H. Kaïdi, and M. Chahid. "Dynamic properties of troubled fluid membranes." International Journal of Academic Research 5, no. 5 (2013): 5–13. http://dx.doi.org/10.7813/2075-4124.2013/5-5/a.1.

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Fazullin, D. D., G. V. Mavrin, and V. O. Dryakhlov. "Stabilization of the Dynamic Layer of Composite Membranes by UV Radiation." Elektronnaya Obrabotka Materialov 58, no. 3 (2022): 62–69. http://dx.doi.org/10.52577/eom.2022.58.3.62.

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To stabilize the dynamic layer of cellulose acetate (CA) and polystyrene (PS) membranes, the membrane was exposed to UV radiation using a laboratory setup in atmospheric air. As a base for dynamic membranes, a micro-filtration membrane made of nylon-66 and a membrane made of polytetrafluoroethylene (PTFE) grade MFFC-3G were used. Dynamic membranes PTFE-CA, PTFE-PSd nylon-CA, nylon-PS were obtained by forming a semi-permeable layer on the surface of a porous base from suspended microparticles of PS or CA present in a filtered aqueous solution of acetone with sizes of 81–504 nm and 42–130 nm, re

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5

Jaksch, Sebastian, Alexandros Koutsioubas, Stefan Mattauch, Olaf Holderer, and Henrich Frielinghaus. "Measurements of Dynamic Contributions to Coherent Neutron Scattering." Colloids and Interfaces 2, no. 3 (2018): 31. http://dx.doi.org/10.3390/colloids2030031.

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In this manuscript, we are investigating the contribution of dynamic membrane properties of phospholipid membranes to coherent scattering signals under grazing incidence. Spectroscopic measurements under grazing incidence can provide useful insight into the properties of biological membranes; however, they are often impeded by weak signals. By using grazing-incidence small-angle neutron scattering (GISANS) to identify a dynamic scattering contribution, we are able to independently corroborate the existence of a previously found dynamic mode, now measured by grazing-incidence neutron spin echo

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6

Lenin, Kanagabasai. "Factual power loss reduction by dynamic membrane evolutionary algorithm." International Journal of Advances in Applied Sciences (IJAAS) 10, no. 2 (2021): 99–106. https://doi.org/10.11591/ijaas.v10.i2.pp99-106.

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This paper presents Dynamic Membrane Evolutionary Algorithm (DMEA) has been applied to solve optimal reactive power problem. Proposed methodology merges the fusion and division rules of P systems with active membranes and with adaptive differential evolution (ADE), particle swarm optimization (PSO) exploration stratagem. All elementary membranes are amalgamated into one membrane in the computing procedure. Furthermore, integrated membrane are alienated into the elementary membranes 1, 2,_ m. In particle swarm optimization (PSO) 𝑪<sub>𝟏</sub>, 𝑪<sub>𝟐</sub> (acceleration constants) are vital pa

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Lima-Rodriguez, Antonia, Antonio Gonzalez-Herrera, and Jose Garcia-Manrique. "Study of the Dynamic Behaviour of Circular Membranes with Low Tension." Applied Sciences 9, no. 21 (2019): 4716. http://dx.doi.org/10.3390/app9214716.

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The dynamic behaviour of membranes has been widely studied by well-known authors for a long time. A clear distinction can be made between the behaviour of membranes without tension (plate case) and membranes subjected to large tension or pre-strain in their plane (membrane case). In classical theories, less attention has been paid to membranes subjected to a low level of tension, which solution is between both extreme cases. Recently, certain fields of research are demanding solutions for this intermediate behaviour. It is the case of membranes present in MEMS and sensor or the response of the

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8

Jenkins, Paul M., Meng He, and Vann Bennett. "Dynamic spectrin/ankyrin-G microdomains promote lateral membrane assembly by opposing endocytosis." Science Advances 1, no. 8 (2015): e1500301. http://dx.doi.org/10.1126/sciadv.1500301.

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Current physical models for plasma membranes emphasize dynamic 10- to 300-nm compartments at thermodynamic equilibrium but subject to thermal fluctuations. However, epithelial lateral membranes contain micrometer-sized domains defined by an underlying membrane skeleton composed of spectrin and its partner ankyrin-G. We demonstrate that these spectrin/ankyrin-G domains exhibit local microtubule-dependent movement on a time scale of minutes and encounter most of the lateral membranes within an hour. Spectrin/ankyrin-G domains exclude clathrin and clathrin-dependent cargo, and inhibit both recept

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9

Kanagabasai, Lenin. "Factual power loss reduction by dynamic membrane evolutionary algorithm." International Journal of Advances in Applied Sciences 10, no. 2 (2021): 99. http://dx.doi.org/10.11591/ijaas.v10.i2.pp99-106.

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<p class="papertitle">This paper presents Dynamic Membrane Evolutionary Algorithm (DMEA) has been applied to solve optimal reactive power problem.Proposed methodology merges the fusion and division rules of P systems with active membranes and with adaptive differential evolution (ADE), particle swarm optimization (PSO) exploration stratagem. All elementary membranes are amalgamated into one membrane in the computing procedure. Furthermore, integrated membrane are alienated into the elementary membranes 1, 2,_ m. In particle swarm optimization (PSO) 𝑪<sub>𝟏</sub>, 𝑪<sub>

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10

Gupta, Sudipta, and Rana Ashkar. "The dynamic face of lipid membranes." Soft Matter 17, no. 29 (2021): 6910–28. http://dx.doi.org/10.1039/d1sm00646k.

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Lipid membranes envelope live cells and mediate vital biological functions through regulated spatiotemporal dynamics. This review highlights the role of neutron scattering, among other approaches, in uncovering the dynamic properties of lipid membranes.

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11

Fazullin, D.D., and G.V. Mavrin. "Thermal Stabilization of Surface Layers of Composite Ultrafiltration Membranes." Электронная oбработка mатериалов 3-4, no. 56 (2020): 95–102. https://doi.org/10.5281/zenodo.3970433.

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To increase the stability of the dynamic layer of a membrane that consists of the polystyrene(PS) microparticles, a nylon-PS membrane was heat treated at temperatures from 50 to 100 °C within 10 minutes. Increasing the temperature from 50 to 100 °С leads to a decrease of the weight up to 0.86%.Temperature impacts on a surface of the dynamic membrane was investigated by the scanning electronic microscopy and the measurement of a wetting contact angle of the studied samples of membranes. The heat treatment of nylon-PS membranes at temperature of 50° С during 10 minutes lead to a decr

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12

Colom, Adai, Lorena Redondo-Morata, Nicolas Chiaruttini, Aurélien Roux, and Simon Scheuring. "Dynamic remodeling of the dynamin helix during membrane constriction." Proceedings of the National Academy of Sciences 114, no. 21 (2017): 5449–54. http://dx.doi.org/10.1073/pnas.1619578114.

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Dynamin is a dimeric GTPase that assembles into a helix around the neck of endocytic buds. Upon GTP hydrolysis, dynamin breaks these necks, a reaction called membrane fission. Fission requires dynamin to first constrict the membrane. It is unclear, however, how dynamin helix constriction works. Here we undertake a direct high-speed atomic force microscopy imaging analysis to visualize the constriction of single dynamin-coated membrane tubules. We show GTP-induced dynamic rearrangements of the dynamin helix turns: the average distances between turns reduce with GTP hydrolysis. These distances v

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13

Wang, Yuane, Xuankang Mou, Yongyun Ji, Fan Pan, and Shiben Li. "Interaction of Macromolecular Chain with Phospholipid Membranes in Solutions: A Dissipative Particle Dynamics Simulation Study." Molecules 28, no. 15 (2023): 5790. http://dx.doi.org/10.3390/molecules28155790.

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The interaction between macromolecular chains and phospholipid membranes in aqueous solution was investigated using dissipative particle dynamics simulations. Two cases were considered, one in which the macromolecular chains were pulled along parallel to the membrane surfaces and another in which they were pulled vertical to the membrane surfaces. Several parameters, including the radius of gyration, shape factor, particle number, and order parameter, were used to investigate the interaction mechanisms during the dynamics processes by adjusting the pulling force strength of the chains. In both

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14

Liu, Chuang, and Linan Fan. "Evolutionary algorithm based on dynamical structure of membrane systems in uncertain environments." International Journal of Biomathematics 09, no. 02 (2016): 1650017. http://dx.doi.org/10.1142/s1793524516500170.

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In this paper, a new evolutionary algorithm based on a membrane system is proposed to solve the dynamic or uncertain optimization problems. The proposed algorithm employs objects, a dynamical membrane structure and several reaction rules of the membrane systems. The object represents a candidate solution of the optimization problems. The dynamical structure consists of the nested membranes where a skin membrane contains several membranes, which is useful for the proposed algorithm that finds optimal solutions. The reaction rules are designed to locate and track the optimal solutions of the dyn

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15

Busch, Karin B., Gabriele Deckers-Hebestreit, Guy T. Hanke, and Armen Y. Mulkidjanian. "Dynamics of bioenergetic microcompartments." Biological Chemistry 394, no. 2 (2013): 163–88. http://dx.doi.org/10.1515/hsz-2012-0254.

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Abstract The vast majority of life on earth is dependent on harvesting electrochemical potentials over membranes for the synthesis of ATP. Generation of membrane potential often relies on electron transport through membrane protein complexes, which vary among the bioenergetic membranes found in living organisms. In order to maximize the efficient harvesting of the electrochemical potential, energy loss must be minimized, and this is achieved partly by restricting certain events to specific microcompartments, on bioenergetic membranes. In this review we will describe the characteristics of the

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16

Altman, Marc, David Hasson, and Raphael Semiat. "REVIEW OF DYNAMIC MEMBRANES." Reviews in Chemical Engineering 15, no. 1 (1999): 1–40. http://dx.doi.org/10.1515/revce.1999.15.1.1.

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17

Bai, Du, and Boguslaw Kruczek. "Effect of Membrane Orientation and Concentration of Draw Solution on the Behavior of Commercial Osmotic Membrane in a Novel Dynamic Forward Osmosis Tests." Membranes 12, no. 4 (2022): 385. http://dx.doi.org/10.3390/membranes12040385.

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Dynamic performance tests, commonly used to characterize gas separation membranes, are not utilized to characterize osmotic membranes. This paper demonstrates the application of a novel dynamic forward osmosis test to characterize a commercial osmotic membrane. In particular, we report the effect of membrane orientation (active layer draw solution (AL-DS) vs. active layer feed solution (AL-FS)) and the draw solution concentration on the membrane’s transient and steady-state behaviors. A step-change in the draw solution concentration initiated the dynamic test, and the mass and concentration of

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18

Kelley, Elizabeth G., Moritz P. K. Frewein, Orsolya Czakkel, and Michihiro Nagao. "Nanoscale Bending Dynamics in Mixed-Chain Lipid Membranes." Symmetry 15, no. 1 (2023): 191. http://dx.doi.org/10.3390/sym15010191.

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Lipids that have two tails of different lengths are found throughout biomembranes in nature, yet the effects of this asymmetry on the membrane properties are not well understood, especially when it comes to the membrane dynamics. Here we study the nanoscale bending fluctuations in model mixed-chain 14:0–18:0 PC (MSPC) and 18:0–14:0 PC (SMPC) lipid bilayers using neutron spin echo (NSE) spectroscopy. We find that despite the partial interdigitation that is known to persist in the fluid phase of these membranes, the collective fluctuations are enhanced on timescales of tens of nanoseconds, and t

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19

Johann, Leonie, Jorge Groß, and Fredrik Karl Henry Rusk. "Static compartmentalisation vs. dynamic molecular interaction –." Nordic Studies in Science Education 21, no. 1 (2025): 21–38. https://doi.org/10.5617/nordina.9912.

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Framed by the Model of Educational Reconstruction and Conceptual Metaphor Theory, this case study explores upper secondary students’ conceptions about cell membrane biology through qualitative analysis of semi-structured interviews. The study aims to examine how this topic may be taught to help students make informed decisions about, for example, health and lifestyle choices. Findings suggest that students ‘conceptions are often rooted in everyday experiences, such as perceiving cell membranes as static structures that serve to protect cells. Without explicit clarification, these conceptions m

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20

Chavent, Matthieu, Tyler Reddy, Joseph Goose, et al. "Methodologies for the analysis of instantaneous lipid diffusion in md simulations of large membrane systems." Faraday Discuss. 169 (2014): 455–75. http://dx.doi.org/10.1039/c3fd00145h.

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Interactions between lipids and membrane proteins play a key role in determining the nanoscale dynamic and structural properties of biological membranes. Molecular dynamics (MD) simulations provide a valuable tool for studying membrane models, complementing experimental approaches. It is now possible to simulate large membrane systems, such as simplified models of bacterial and viral envelope membranes. Consequently, there is a pressing need to develop tools to visualize and quantify the dynamics of these immense systems, which typically comprise millions of particles. To tackle this issue, we

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21

Santo, Loredana, Fabrizio Quadrini, Denise Bellisario, Antonella Polimeni, and Anna Santarsiero. "Variability of Mechanical Properties of Collagen Membranes used in Dentistry." Materiale Plastice 55, no. 4 (2018): 488–93. http://dx.doi.org/10.37358/mp.18.4.5059.

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The aim of this study is proposing a combination of measurements to assess the functional variability of collagen membranes used in Guided Bone Regeneration (GBR) and Guided Tissue Regeneration (GTR) techniques. As far as clinical applications are concerned, a proper qualification is critical when deciding, among commercially available collagen membranes, upon the most appropriate one for each specific clinical case. Two commercially available collagen membranes, namely Collprotect� and Jason�, were considered for the experimentation. After thickness and density measurements, the quasi-static

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He, Bin, Xiaomeng Yu, Moran Margolis, et al. "Live-Cell Imaging in Caenorhabditis elegans Reveals the Distinct Roles of Dynamin Self-Assembly and Guanosine Triphosphate Hydrolysis in the Removal of Apoptotic Cells." Molecular Biology of the Cell 21, no. 4 (2010): 610–29. http://dx.doi.org/10.1091/mbc.e09-05-0440.

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Dynamins are large GTPases that oligomerize along membranes. Dynamin's membrane fission activity is believed to underlie many of its physiological functions in membrane trafficking. Previously, we reported that DYN-1 ( Caenorhabditis elegans dynamin) drove the engulfment and degradation of apoptotic cells through promoting the recruitment and fusion of intracellular vesicles to phagocytic cups and phagosomes, an activity distinct from dynamin's well-known membrane fission activity. Here, we have detected the oligomerization of DYN-1 in living C. elegans embryos and identified DYN-1 mutations t

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Ashkar, Rana. "The dynamic interplay between cell membranes and membrane proteins." Acta Crystallographica Section A Foundations and Advances 77, a1 (2021): a221. http://dx.doi.org/10.1107/s0108767321097786.

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Gillighan, A., S. J. Judd, and R. Eyres. "Membrane thickening of water works sludge." Water Supply 1, no. 5-6 (2001): 215–20. http://dx.doi.org/10.2166/ws.2001.0117.

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The efficacy of ultrafiltration (UF) and microfiltration (MF) membranes was assessed for the concentration of actual waterworks sludges using crossflow tubular membranes operated at constant trans-membrane pressure. The MF membrane gave higher initial fluxes than the UF membrane but after 10 min of filtration the flux value and its decline tended to be very similar for both membranes operating under the same conditions. All membranes gave permeate product water of &lt;0.2 NTU and &lt;100ppb coagulant at all times. For both membranes mechanical cleaning, with sponge balls, was at least

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Chen, Charles H., Jakob P. Ulmschneider, and Martin B. Ulmschneider. "Mechanisms of a Small Membrane-Active Antimicrobial Peptide from Hyla punctata." Australian Journal of Chemistry 73, no. 3 (2020): 236. http://dx.doi.org/10.1071/ch19429.

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Thousands of antimicrobial peptides have been observed and studied in the past decades; however, their membrane-active mechanisms are ambiguous due to their dynamic structure in the cell membrane. Here, we applied both molecular dynamics (MD) simulations and biophysical experiments to study the small membrane-active antimicrobial peptide Hylaseptin P1 (HSP1), which has significant selectivity towards anionic 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1′-rac-glycerol) (POPG) and bacterial model membranes. HSP1 does not bind and fold onto human red blood cell model membranes, and it only binds,

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Tarun, Orly B., Christof Hannesschläger, Peter Pohl, and Sylvie Roke. "Label-free and charge-sensitive dynamic imaging of lipid membrane hydration on millisecond time scales." Proceedings of the National Academy of Sciences 115, no. 16 (2018): 4081–86. http://dx.doi.org/10.1073/pnas.1719347115.

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Biological membranes are highly dynamic and complex lipid bilayers, responsible for the fate of living cells. To achieve this function, the hydrating environment is crucial. However, membrane imaging typically neglects water, focusing on the insertion of probes, resonant responses of lipids, or the hydrophobic core. Owing to a recent improvement of second-harmonic (SH) imaging throughput by three orders of magnitude, we show here that we can use SH microscopy to follow membrane hydration of freestanding lipid bilayers on millisecond time scales. Instead of using the UV/VIS resonant response of

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LIU, CHANG-JIANG, ZHOU-LIAN ZHENG, LONG JUN, JIAN-JUN GUO, and KUI WU. "DYNAMIC ANALYSIS FOR NONLINEAR VIBRATION OF PRESTRESSED ORTHOTROPIC MEMBRANES WITH VISCOUS DAMPING." International Journal of Structural Stability and Dynamics 13, no. 02 (2013): 1350018. http://dx.doi.org/10.1142/s0219455413500181.

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This paper is concerned with the nonlinear damped vibration of prestressed orthotropic membrane structures. The Krylov–Bogolubov–Mitropolsky (KBM) perturbation method is employed for solving the governing equations of large amplitude nonlinear vibration of rectangular orthotropic membranes with viscous damping. Presented herein are asymptotic analytical solutions for the frequency and displacement function of large amplitude nonlinear damped vibration of rectangular orthotropic membranes with four edges simply supported or fixed. Through the computational example, we compared and analyzed the

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Idriss, Ibrahim Maina, Umar Abdullahi Isah, Daggash Muhammad Lawan, Kaka Goni Atiku, and Zubair Hashmi. "Overview of Iron-Coated Dynamic Membrane for Water Treatment." AMPLITUDO : Journal of Science and Technology Innovation 3, no. 1 (2024): 1–8. http://dx.doi.org/10.56566/amplitudo.v1i1.124.

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The increasing global demand for clean and potable water has prompted the exploration of innovative water treatment technologies. Pre-deposited dynamic membrane systems, a novel approach in wastewater treatment, have gained attention due to their versatility and effectiveness. This mini-review focuses on the application of iron oxide-based dynamic membranes in water treatment processes. It discusses the impact, formation, properties, and various water treatment applications of iron oxide dynamic membranes, highlighting their potential to revolutionize the field of sustainable water treatment.

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Burts, Katsiaryna, Tatiana Plisko, Mariia Dmitrenko, et al. "Novel Thin Film Nanocomposite Membranes Based on Chitosan Succinate Modified with Fe-BTC for Enhanced Pervaporation Dehydration of Isopropanol." Membranes 12, no. 7 (2022): 653. http://dx.doi.org/10.3390/membranes12070653.

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The application of environmentally friendly and energy-efficient membrane processes allows improvement the ecological safety and sustainability of industrial production. However, the effective application of membrane processes requires novel high-performance thin film composite (TFC) membranes based on biopolymers to solve environmental problems. In this work for the first time novel thin film nanocomposite (TFN) membranes based on biopolymer chitosan succinate (ChS) modified with the metal organic framework iron 1,3,5-benzenetricarboxylate (Fe-BTC) were developed for enhanced pervaporation de

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Liu, Yan, George Chen, Xiuli Yang, and Huining Deng. "Preparation of Layer-by-Layer Nanofiltration Membranes by Dynamic Deposition and Crosslinking." Membranes 9, no. 2 (2019): 20. http://dx.doi.org/10.3390/membranes9020020.

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In recent decades, the advancements in layer-by-layer (LBL) assembly technology have provoked increasing interest in the preparation of multilayer polyelectrolyte membranes with excellent performance. In the current study, a novel nanofiltration (NF) membrane was prepared by pressure-driven layer-by-layer (LBL) assembly of polyethylenimine (PEI) and polyacrylicacid (PAA) on a porous substrate with chemical crosslinking. The effect of deposition pressure on separation performance of the prepared membranes was studied. The surface morphology, hydrophilicity and the charge property of the dynamic

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von Filseck, Joachim Moser. "Membranumbau durch ESCRT-III-Proteine." BIOspektrum 28, no. 4 (2022): 363–65. http://dx.doi.org/10.1007/s12268-022-1774-x.

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AbstractTo maintain their function, cellular membranes require membrane remodelling, mediated by protein machineries like the ESCRT-III that deforms and breaks membranes in different cellular functions. Its mechanism of function is still unknown. However, recent findings on the ESCRT-IIIs’ structural and dynamic features, such as their ability to alter their shape, membrane-binding and mechanical properties, allow formulating interesting new hypotheses on how they can remodel membranes.

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Greaves, Jennifer, Juliet A. Carmichael, and Luke H. Chamberlain. "The palmitoyl transferase DHHC2 targets a dynamic membrane cycling pathway: regulation by a C-terminal domain." Molecular Biology of the Cell 22, no. 11 (2011): 1887–95. http://dx.doi.org/10.1091/mbc.e10-11-0924.

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Intracellular palmitoylation dynamics are regulated by a large family of DHHC (Asp-His-His-Cys) palmitoyl transferases. The majority of DHHC proteins associate with endoplasmic reticulum (ER) or Golgi membranes, but an interesting exception is DHHC2, which localizes to dendritic vesicles of unknown origin in neurons, where it regulates dynamic palmitoylation of PSD95. Dendritic targeting of newly synthesized PSD95 is likely preceded by palmitoylation on Golgi membranes by DHHC3 and/or DHHC15. The precise intracellular distribution of DHHC2 is presently unclear, and there is very little known i

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Manzo, Maurizio, and Megha Bakaraju. "Novel thin polymeric magnetic membranes study for applications in the future biomedical devices." AIP Advances 12, no. 11 (2022): 115221. http://dx.doi.org/10.1063/5.0130683.

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Biomedical devices such as pumping/mixing fluids, cell-culturing, and drug delivery often use different actuation methods. Magnetic actuation using magnetic particles that are embedded in thin flexible polymeric sheets (membranes) is convenient to use, especially for medical implantable devices such as micropumps, due to the fact they do not require board batteries and exhibit better performances than other actuation methods. The fabrication process of these membranes uses a random distribution of particles. In this work, membranes with a local distribution of magnetic particles are investigat

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Schoch, Rafael L., Gilad Haran, and Frank L. H. Brown. "Dynamic correlations in lipid bilayer membranes over finite time intervals." Journal of Chemical Physics 158, no. 4 (2023): 044112. http://dx.doi.org/10.1063/5.0129130.

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Recent single-molecule measurements [Schoch et al., Proc. Natl. Acad. Sci. U. S. A. 118, e2113202118 (2021)] have observed dynamic lipid–lipid correlations in membranes with submicrometer spatial resolution and submillisecond temporal resolution. While short from an instrumentation standpoint, these length and time scales remain long compared to microscopic molecular motions. Theoretical expressions are derived to infer experimentally measurable correlations from the two-body diffusion matrix appropriate for membrane-bound bodies coupled by hydrodynamic interactions. The temporal (and associat

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Chen, Shu-Ting, S. Ranil Wickramasinghe, and Xianghong Qian. "Electrospun Weak Anion-Exchange Fibrous Membranes for Protein Purification." Membranes 10, no. 3 (2020): 39. http://dx.doi.org/10.3390/membranes10030039.

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Membrane based ion-exchange (IEX) and hydrophobic interaction chromatography (HIC) for protein purification is often used to remove impurities and aggregates operated under the flow-through mode. IEX and HIC are also limited by capacity and recovery when operated under bind-and-elute mode for the fractionation of proteins. Electrospun nanofibrous membrane is characterized by its high surface area to volume ratio and high permeability. Here tertiary amine ligands are grafted onto the electrospun polysulfone (PSf) and polyacrylonitrile (PAN) membrane substrates using UV-initiated polymerization.

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Ma, Yuanqing, Elizabeth Hinde, and Katharina Gaus. "Nanodomains in biological membranes." Essays in Biochemistry 57 (February 6, 2015): 93–107. http://dx.doi.org/10.1042/bse0570093.

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Lipid rafts are defined as cholesterol- and sphingomyelin-enriched membrane domains in the plasma membrane of cells that are highly dynamic and cannot be resolved with conventional light microscopy. Membrane proteins that are embedded in the phospholipid matrix can be grouped into raft and non-raft proteins based on their association with detergent-resistant membranes in biochemical assays. Selective lipid–protein interactions not only produce heterogeneity in the membrane, but also cause the spatial compartmentalization of membrane reactions. It has been proposed that lipid rafts function as

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Xing You, Hong, Xiaoyang Qi, and Lei Yu. "Real-Time Observation of Phospholipid Bilayer Membrane Restructuring Induced by Protein Molecules using Atomic Force Microscopy." Microscopy and Microanalysis 7, S2 (2001): 858–59. http://dx.doi.org/10.1017/s1431927600030361.

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Atomic force microscopy (AFM) allows the surfaces of native biological materials to be imaged in aqueous solution with submolecular resolution. The ability to perform AFM imaging in aqueous and physiological environment has made it possible to monitor important biological processes in real time at high resolution. Currently, there is a great deal of interest in AFM studies of the structure and property of lipid bilayer membranes and protein interactions with lipid bilayer membranes. Lipid bilayer membranes in biological cells form a permeability barrier, which controls the flow of ions, water,

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NAKATANI, Yoichi, and Guy OURISSON. "Dynamic Analysis of Lipid Membranes." Journal of Japan Oil Chemists' Society 47, no. 10 (1998): 1083–97. http://dx.doi.org/10.5650/jos1996.47.1083.

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Nechifor, G., Mircea Olteanu, Gabriela Popescu, and V. Pîrvulescu. "Dynamic Membranes for Catalytic Reaction." Key Engineering Materials 61-62 (January 1992): 443–48. http://dx.doi.org/10.4028/www.scientific.net/kem.61-62.443.

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Jenkins, C. H., and J. W. Leonard. "Dynamic Wrinkling of Viscoelastic Membranes." Journal of Applied Mechanics 60, no. 3 (1993): 575–82. http://dx.doi.org/10.1115/1.2900841.

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Problems associated with viscoelastic membrane structures have been documented, e.g., dynamic wrinkling and its effects on fatigue analysis and on snap loading. In the proposed analysis method, the constitutive equation is approximated by a finite difference equation and embedded within a nonlinear finite element spatial discretization. Implicit temporal integration and a modified Newton-Raphson method are used within a time increment. The stress-strain hereditary relation is formally derived from thermodynamic considerations. Use of modified strain-energy and dissipation functions facilitates

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Evans, Evan, and Volkmar Heinrich. "Dynamic strength of fluid membranes." Comptes Rendus Physique 4, no. 2 (2003): 265–74. http://dx.doi.org/10.1016/s1631-0705(03)00044-6.

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Al-Malack, Muhammad H., and G. K. Anderson. "Crossflow microfiltration with dynamic membranes." Water Research 31, no. 8 (1997): 1969–79. http://dx.doi.org/10.1016/s0043-1354(96)00313-2.

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Al-Malack, Muhammad H., and G. K. Anderson. "Cleaning techniques of dynamic membranes." Separation and Purification Technology 12, no. 1 (1997): 25–33. http://dx.doi.org/10.1016/s1383-5866(97)00012-9.

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Svintradze, David V. "Pattern formation on dynamic membranes." Biophysical Journal 122, no. 3 (2023): 364a. http://dx.doi.org/10.1016/j.bpj.2022.11.2010.

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Maver, K., U. Lavrenčič Štangar, P. Judeinstein, and J. M. Zanotti. "Dynamic studies of Ormosil membranes." Journal of Non-Crystalline Solids 354, no. 2-9 (2008): 680–87. http://dx.doi.org/10.1016/j.jnoncrysol.2007.08.087.

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Campelo, F., and A. HernÃ¡ndez-Machado. "Dynamic instabilities in biological membranes." PAMM 7, no. 1 (2007): 1121403–4. http://dx.doi.org/10.1002/pamm.200700341.

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Wang, Xiaofeng, Haoyue Chu, and Qingshan Yang. "Numerical analysis of dynamic properties of wrinkled thin membranes." Engineering Computations 37, no. 8 (2020): 2871–94. http://dx.doi.org/10.1108/ec-10-2018-0459.

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Purpose This paper aims to numerically study the effects of boundary conditions, pre-stress, material constants and thickness on the dynamic performance of a wrinkled thin membrane. Design/methodology/approach Based on the stability theory of plates and shells, the dynamic equations of a wrinkled thin membrane were developed, and they were solved with the Lanczos method Findings The effects of wrinkle-influencing factors on the dynamic performance of a wrinkled membrane are determined by the wrinkling stage. The effects are prominent when wrinkling deformation is evolving, but they are very sm

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Subczynski, Witold Karol, Marija Raguz, and Justyna Widomska. "Multilamellar Liposomes as a Model for Biological Membranes: Saturation Recovery EPR Spin-Labeling Studies." Membranes 12, no. 7 (2022): 657. http://dx.doi.org/10.3390/membranes12070657.

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EPR spin labeling has been used extensively to study lipids in model membranes to understand their structures and dynamics in biological membranes. The lipid multilamellar liposomes, which are the most commonly used biological membrane model, were prepared using film deposition methods and investigated with the continuous wave EPR technique (T2-sensitive spin-labeling methods). These investigations provided knowledge about the orientation of lipids, their rotational and lateral diffusion, and their rate of flip-flop between bilayer leaflets, as well as profiles of membrane hydrophobicity, and

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Ader, C., R. Schneider, K. Seidel, M. Etzkorn, and M. Baldus. "Magic-angle-spinning NMR spectroscopy applied to small molecules and peptides in lipid bilayers." Biochemical Society Transactions 35, no. 5 (2007): 991–95. http://dx.doi.org/10.1042/bst0350991.

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ssNMR (solid-state NMR) spectroscopy provides increasing possibilities to study the structural and dynamic aspects of biological membranes. Here, we review recent ssNMR experiments that are based on MAS (magic angle spinning) and that provide insight into the structure and dynamics of membrane systems at the atomic level. Such methods can be used to study membrane architecture, domain formation or molecular complexation in a way that is highly complementary to other biophysical methods such as imaging or calorimetry.

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Segarceanu, Mircea, Alexandra Raluca Miron, Szidonia Katalin Tanczos, Abbas Abdul Kadhim Klaif Rikabi, Ion Marius Nafliu, and Danut Ionel Vaireanu. "Dynamic Membranes on Polysulfone Support for Fuel Cells." Materiale Plastice 55, no. 2 (2018): 137–40. http://dx.doi.org/10.37358/mp.18.2.4980.

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In the present paper, the authors dealt with the synthesis and characterization of a new type of dynamic membrane with polysulfone matrix and ionic polymer electrolyte: polysulfone-sulfonated polyetherether-sulfone (PSf-SPEEK). The PSf-SPEEK composite membranes were formed by ultrafiltration of SPEEK gel on the polysulfone matrix in a CELFA System installation. The thickness of the PSf porous layer for the different membranes can be between 50 and 120 mm. The variation of SPEEK active layer�s thickness is dependent both on the concentration of the SPEEK solution in the feed, and on the velocit

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