Dynamic behaviour of multilamellar vesicles under Poiseuille flow

Pommella, Angelo; Donnarumma, Dario; Caserta, Sergio; Guido, Stefano

doi:10.1039/c7sm00867h

Cited by 10 publications

(9 citation statements)

References 55 publications

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“…recently reported complex rheological and flow behaviour for aqueous solutions of 30 wt% LAS at 25 • C. The non-planar lamellar nano-structure of the surfactant solution under these conditions, which induced such flow behaviour, was assumed to be generated by the shear applied during the sample preparation. [30] Here, we show that the significant change in the macroscopic and flow behaviour of LAS solutions derives from the spontaneous surfactant self-assembly into non-planar bilayers, as opposed to shear-driven deformations.…”

Section: Introductionmentioning

confidence: 72%

“…[17] Recent rheology measurements of HLAS at concentrations and temperatures relevant to our range of interest, showed significant shear-thinning behaviour with multiple power-laws associated with different ranges of shear rate ranges. [30] This behaviour was attributed to the presence of MLVs that were assumed to form due to the application of shear to the planar lamellar phase. [30] Our quiescent experiments now show that MLVs form spontaneously within the micellar phase of NaLAS upon crossing the phase boundary.…”

Section: Mlvs Under Flowmentioning

confidence: 99%

“…[30] This behaviour was attributed to the presence of MLVs that were assumed to form due to the application of shear to the planar lamellar phase. [30] Our quiescent experiments now show that MLVs form spontaneously within the micellar phase of NaLAS upon crossing the phase boundary. In order to investigate this spontaneous phase transformation upon cooling, we performed microfluidic experiments that model confinement effects, while allowing design of well-controlled complex shear fields and simultaneous visualisation of the flow.…”

Section: Mlvs Under Flowmentioning

confidence: 99%

“…[13] However, physical and functional properties of LAS solutions in this regime were observed to be significantly different from those expected from the characterised micellar and lamellar phases described before. [29,30] In particular, Pommella et al. recently reported complex rheological and flow behaviour for aqueous solutions of 30 wt% LAS at 25 • C. The non-planar lamellar nano-structure of the surfactant solution under these conditions, which induced such flow behaviour, was assumed to be generated by the shear applied during the sample preparation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Spontaneous formation of multilamellar vesicles from aqueous micellar solutions of sodium linear alkylbenzene sulfonate (NaLAS)

Khodaparast

Sharratt

Wang

et al. 2019

Journal of Colloid and Interface Science

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show abstract

Section: Introductionmentioning

confidence: 72%

Section: Mlvs Under Flowmentioning

confidence: 99%

Section: Mlvs Under Flowmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spontaneous formation of multilamellar vesicles from aqueous micellar solutions of sodium linear alkylbenzene sulfonate (NaLAS)

Khodaparast

Sharratt

Wang

et al. 2019

Journal of Colloid and Interface Science

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show abstract

“…Amphiphilic molecules can form vesicles by self‐assembly. Vesicles are one of the important 3D self‐assemblies, and their unique hollow structure makes them widely used in many fields, such as drug transport, temporary storage of food and enzymes, and chemical reaction chambers. The vesicles in the simulation systems are usually self‐assembled from amphiphilic molecules.…”

Section: Transport Of Some Soft Matter Systemsmentioning

confidence: 99%

Simulating Transport of Soft Matter in Micro/Nano Channel Flows with Dissipative Particle Dynamics

Yang

Zhu

et al. 2018

Advcd Theory and Sims

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The flow-induced transport of various soft matter systems through a fluidic channel has recently attracted great interest due to its significance ranging from the understanding of several chemical and biological processes to potential industrial and technical applications. Dynamic simulation and modeling can yield an insight into the detailed conformational, dynamical, and transport properties of soft matter systems, which is necessary to understand the transport properties of biological macromolecules in living organisms. As a mesoscopic particles-based simulation technique, dissipative particle dynamics (DPD) has quickly been adopted as a promising approach for simulating dynamic and rheological properties of simple and complex fluids as well as the events taking place inside the fluidic channels. Here, the DPD method widely used in predicting the channel flow containing various soft matter systems is reviewed. The general aspect and basic formulations of DPD are introduced, and different boundary conditions are presented for wall-bounded flows. In addition, the models based on DPD developed to simulate flow-induced transport through fluidic channels for some typical soft matter systems are discussed, including red blood cells, vesicles, polymers, and biomacromolecules. Finally, the future directions to signify the framework in enhancing the design of novel functional systems and beyond are discussed.

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Polymer Vesicles in a Nanochannel under Flow Fields: A DPD Simulation Study

Lin

Wang

et al. 2022

Macro Theory & Simulations

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The general lack of knowledge on the dynamics of polymer vesicles under flow field has confounded their applications in drug delivery and other fields. Therefore, dissipative particle dynamics (DPD) simulations on the dynamic behavior of diblock copolymer vesicles in a nanochannel under Poiseuille flow are conducted. The simulation results show that the block copolymer vesicles with hydrophobic blocks of different rigidities exhibit significantly different mechanical stabilities under the flow fields. With increasing the Reynolds number, the coil–coil block copolymer vesicles undergo a shape transition from spherical to bullet‐like to asymmetric and eventually split into two parts. In contrast, the rod–coil block copolymer vesicles deform from spherical to bullet‐like to parachute‐like structures and ultimately ruptured. The flow‐induced distortion and reorganization of copolymers mainly cause the deformation of vesicles. The distinguished motions of the block copolymers with different rigid blocks lead to the distinct performance of the vesicles. The findings could help understand the flow behavior of polymer vesicles in a nanochannel or a blood vessel and assist the design of bio‐functional polymersomes.

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Dynamic behaviour of multilamellar vesicles under Poiseuille flow

Cited by 10 publications

References 55 publications

Spontaneous formation of multilamellar vesicles from aqueous micellar solutions of sodium linear alkylbenzene sulfonate (NaLAS)

Spontaneous formation of multilamellar vesicles from aqueous micellar solutions of sodium linear alkylbenzene sulfonate (NaLAS)

Simulating Transport of Soft Matter in Micro/Nano Channel Flows with Dissipative Particle Dynamics

Polymer Vesicles in a Nanochannel under Flow Fields: A DPD Simulation Study

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