Liquid-crystal self-assembly of lipid membranes on solutions: A dissipative particle dynamic simulation study

Qiang, Xiaowei; Wang, Xianghong; Ji, Yongyun; Li, Shiben; He, Linli

doi:10.1016/j.polymer.2017.03.021

Cited by 22 publications

(43 citation statements)

References 71 publications

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“…The third stage is the vesicle formation stage, in which vesicles are formed, and the system enters an equilibrium state with stable energy. The dynamic processes in the system are similar to those observed in copolymer systems 13,58,62 . The previous experiments and simulations have reported the dynamic path of spherical vesicles for triblock copolymers in solutions by adding solvent rates 63 .…”

Section: Resultssupporting

confidence: 66%

“…We take θ 0 = π for three consecutive T beads and θ 0 = 2/3 π for the three consecutive beads at the connective point between the T and H, as shown in Fig. 1a, which are similar to those of the model used in our previous works 13,41 . In this study, we fix N HB = 3 and N TB = 4 for H and T, respectively.…”

Section: Model and Methodsmentioning

confidence: 99%

“…Dissipative particle dynamic (DPD) simulation suggests that vesicle structures can be observed in the simple model of phospholipid–water mixtures when chain lengths and amphiphilicity are suitable 12 . Recently, we carried out a DPD simulation of the self-assembly of phospholipid molecules in aqueous solutions and found that the phospholipid polymer chains can self-assemble into different structures in aqueous solutions when phospholipid chain lengths and concentrations are changed 13 . DPD simulations can predict a series of microstructures, including bilayer membranes, perforated bilayer membranes, micelles and vesicles.…”

Section: Introductionmentioning

confidence: 99%

“…DPD simulations can predict a series of microstructures, including bilayer membranes, perforated bilayer membranes, micelles and vesicles. Under such shear-free conditions, structural shapes are dependent on several factors, including head-to-tail ratio of chain lengths and phospholipid concentrations 13 . When the phospholipid concentration is increased to a suitable value, the cylindrical network structure can be observed (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Shear-induced microstructures and dynamics processes of phospholipid cylinders in solutions

Shan

Qiang

et al. 2019

Sci Rep

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Shear-induced microstructures and their corresponding dynamic processes are investigated for phospholipid cylinders in aqueous solution by dissipative particle dynamic simulation. Various phospholipid cylinders with cross-sections, which are formed under shear-free flow, are selected to examine the effects of shear flow on their structures and dynamic processes. Shear flow induces the transition from cylinders into vesicles at weak rate and the transition into vesicle–lamella mixtures with increased shear rate and lamella structures at the strong shear rate. Then, the average radius of gyration and shape factors of the polymer chains in the dynamic processes are discussed in detail. Results show that shear flow causes the structure of the polymer chains to be elongated along the shear direction, and the configuration of the polymer chain can be rapidly transformed into an ellipsoid structure under strong shear.

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Section: Resultssupporting

confidence: 66%

Section: Model and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shear-induced microstructures and dynamics processes of phospholipid cylinders in solutions

Shan

Qiang

et al. 2019

Sci Rep

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“…These data indicate that the velocity and interaction parameters of the cylindrical NPs affect the dynamic process and energy required to achieve a stable energy. In these modes, the energy change of the system is similar to the previous result [64,65].…”

Section: B Dynamic Processessupporting

confidence: 86%

Multinanoparticle Translocations in Phospholipid Membranes: Translocation Modes and Dynamic Processes

2020

Chinese Journal of Chemical Physics

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Multinanoparticles interacting with the phospholipid membranes in solution were studied by dissipative particle dynamics simulation. The selected nanoparticles have spherical or cylindrical shapes, and they have various initial velocities in the dynamical processes. Several translocation modes are defined according to their characteristics in the dynamical processes, in which the phase diagrams are constructed based on the interaction strengths between the particles and membranes and the initial velocities of particles. Furthermore, several parameters, such as the system energy and radius of gyration, are investigated in the dynamical processes for the various translocation modes. Results elucidate the effects of multiparticles interacting with the membranes in the biological processes.

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Development and investigation of high‐flux antifouling NF PES membranes decorated by aniline oligomers and application for wastewater treatment

Oulad,

Zinadini,

Zinatizadeh

et al. 2023

Polymers for Advanced Techs

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In this research, first branched aniline oligomers functionalized polyethersulfone (BAO‐PES) were prepared by diazonium‐induced grafting, and then the embedded membranes were fabricated at five different compositions using the conventional phase inversion process. The influence of BAO‐PES as a modifier on membrane preparation was investigated in terms of membrane topography, membrane morphology, hydrophilicity, permeability, antifouling performance, and chemical stability. The function of blended membranes was evaluated by computational analysis, Fourier transform infrared (FTIR) analysis, scanning electron microscopy (SEM), atomic force microscopy (AFM), and water contact angle (WCA) measurement. Our computational analysis has substantiated that BAO‐PES (25 wt. %)/PES, characterized by a lower Flory–Huggins parameter (0.65), emerges as a promising contender for the blending of BAO‐PES with PES. The maximum water flux of 67.6 kg/m2 h was observed for the M1 membrane with the optimum dosage of BAO‐PES (25 wt. %) at a low pressure of 3 bar. To assess the nanofiltration performance of the mixed matrix BAO‐PES/PES membranes, the removal efficiency was studied for Direct Red 16 and tannic acid dye. From the results, it was found that the loose BAO‐PES/PES membranes had great dye rejection ability (more than 97%) compared to the bare membrane (88%–89%). The fouling resistance property of the loosely prepared membranes was tested by protein rejection, and the results revealed that the best antifouling property was observed at optimum dosage of the BAO‐PES modifier (25%, FRR = 98.37%). The embedded BAO‐PES/PES membranes, after exposure to harsh environments, exhibited such long‐term chemical stability that it is an important specification for real management in industry.

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Liquid-crystal self-assembly of lipid membranes on solutions: A dissipative particle dynamic simulation study

Cited by 22 publications

References 71 publications

Shear-induced microstructures and dynamics processes of phospholipid cylinders in solutions

Shear-induced microstructures and dynamics processes of phospholipid cylinders in solutions

Multinanoparticle Translocations in Phospholipid Membranes: Translocation Modes and Dynamic Processes

Development and investigation of high‐flux antifouling NF PES membranes decorated by aniline oligomers and application for wastewater treatment

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