Shear-induced aggregation or disaggregation in edible oils: Models, computer simulation, and USAXS measurements

Townsend, B.; Peyronel, Fernanda; Callaghan-Patrachar, Nukhalu; Quinn, Bonnie; Marangoni, Alejandro G.; Pink, David A.

doi:10.1063/1.5004023

Cited by 5 publications

(1 citation statement)

References 70 publications

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“…The shear simulation of microgel assemblies was constructed as described in ref. . The simulation volume is a cube with fluid driven along the y ‐axis, though fluctuations in local fluid flow can occur, a shear gradient along the z ‐axis, and periodic boundary conditions along the x ‐ and y ‐axes.…”

Section: Methodsmentioning

confidence: 99%

Directed Self‐Assembly of Patchy Microgels into Anisotropic Nanostructures

Wang

Zhang

et al. 2019

Macromol. Rapid Commun.

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recent years, some DSA strategies have been developed. [4] The building blocks were organized into ordered structures indirectly using templates (e.g., DNA, [5] capillary, [6] topographically patterned substrates [7,8] ) or external fields (e.g., electric [9] and magnetic fields, [10] flow field [11] ). Besides, a rich interplay of multiple chemically distinct components and geometrical complexity of assembly units could be directly tailored to achieve the DSA behavior. Obviously, the latter is a simple and robust "bottom-up" way.The DSA process can be controlled precisely by the intrinsic characteristics of nanoparticles, like imparting directionality in molecular interactions and controlling particle geometry. Recent attention in particle design and synthesis has focused on the "patches" onto the particle surface to effectively regulate the interaction directionality. Soft patchy assemblies with different symmetries from triblock terpolymers could be further co-assembled into substructured and compartmentalized materials with predictable and tunable nanoscale periodicities. [12] Triblock Janus colloidal spheres with two hydrophobic poles and an electrically charged middle band were induced to form a complex predetermined colloidal crystal-kagome structure via the hydrophobic attraction and electrostatic repulsion. [13] By utilizing the anion-π interaction as the driving force, long-distance self-assembly with coherent particle formation was achieved, on which the cavity orientation of the bismacrocycle components had a significant influence. [14] On the basis of "patch" strategy, the geometry of nanoscale building blocks also plays key roles in the hierarchical assembly of ordered superstructures, especially for anisotropic nanoparticles with nonspherical shapes. [15] Patchy ellipsoidal polymer particles with sticky interactions near the tips were produced by the thermo/mechanical stretching and following wet chemical treatment. [16] The patchy, inverse pom-pom ellipsoids could interact directionally and self-assemble into chains or denser structures in bulk. Snowman-type Janus nanoparticles (JNPs) were used as a model to study the effect of colloidal geometries on their assembled superstructures. [17] Both finite (capsules with different curvatures) and nonfinite superstructures (free-standing single-layered or double-layered JNPs sheets) Multi-geometry nanostructures with high-order, complex, and controllable geometries have attracted extensive attention in the development of functional nanomaterials. A simple and versatile strategy is proposed to construct various anisotropic nanostructures through the directed self-assembly (DSA) of patchy microgels. A general criterion for interaction parameters is developed by the variance analysis method to achieve the formation of 1Dnanorods by the single directional DSA process, and 2D or 3D polymorphs including V/T/h/cross shapes, multiple arms, multi-directional bending, single/multiple rings, nanocages, etc., by the multi-directional DSA process of binary microgel b...

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Section: Methodsmentioning

confidence: 99%

Directed Self‐Assembly of Patchy Microgels into Anisotropic Nanostructures

Wang

Zhang

et al. 2019

Macromol. Rapid Commun.

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A Sucker‐Reactor Polyoxometalate Assembled Superstructures for Efficient Photocatalytic Nitrogen Fixation

Gong,

Teng,

Liu

et al. 2024

Advanced Materials

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Designing a reaction system that integrates reactant capture and transformation in an artificial photosynthesis system to achieve high reaction efficiency remains challenging. Here, an ionic liquid (IL) ‐polyoxometalate (POM) superstructure photocatalyst (P2HPMo) is reported, where the anisotropy of the superstructure is allowed by adjusting the alkyl chain lengths of ILs. Experimental data and theoretical simulation show that ILs and POM serve as the “sucker” and “reactor” of the reaction system to capture and transform the reactants, respectively. In particular, the addition of quaternary phosphorous IL cations is not only conducive to the adsorption of N2 but also effectively promotes the activation of N2 by manipulating the energy band and electronic structure. Consequently, the synthesized P2HPMo exhibits an ammonia synthesis rate of 98 µmol·gcat−1·h−1, which is one of the highest values available in a sacrificial agent‐free system.

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Small-angle X-Ray and neutron scattering in food colloids

Gilbert

2019

Current Opinion in Colloid & Interface Science

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Shear-induced aggregation or disaggregation in edible oils: Models, computer simulation, and USAXS measurements

Cited by 5 publications

References 70 publications

Directed Self‐Assembly of Patchy Microgels into Anisotropic Nanostructures

Directed Self‐Assembly of Patchy Microgels into Anisotropic Nanostructures

A Sucker‐Reactor Polyoxometalate Assembled Superstructures for Efficient Photocatalytic Nitrogen Fixation

Small-angle X-Ray and neutron scattering in food colloids

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