Statistical study of a concentrated dispersion of deformable particles modelled as an assembly of cyclic lattice chains

Dickinson, Eric; Euston, Stephen R.

doi:10.1080/00268978900100601

Cited by 22 publications

(3 citation statements)

References 38 publications

(50 reference statements)

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“…Modeling approaches (random sequential adsorption model) replacing the protein molecule by sticky colloidal particles lead to a drastic underestimation of the interface coverage of about 0.55% [343,344]. The discrepancy is caused by several features of the protein adsorption layer such as multilayer formation, the presence of native proteins squeezed in between the partially denatured proteins and long-time shape adaption of the proteins [345][346][347]. In summary, such adsorption layers of globular proteins can be considered as jammed 2D systems, depending on the structural arrangement and correlation length [242,247,284,[348][349][350][351][352].…”

Section: Interfacial Rheology Of Protein Adsorption Layersmentioning

confidence: 99%

The self-assembly, aggregation and phase transitions of food protein systems in one, two and three dimensions

2013

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The aggregation of proteins is of fundamental relevance in a number of daily phenomena, as important and diverse as blood coagulation, medical diseases, or cooking an egg in the kitchen. Colloidal food systems, in particular, are examples that have great significance for protein aggregation, not only for their importance and implications, which touches on everyday life, but also because they allow the limits of the colloidal science analogy to be tested in a much broader window of conditions, such as pH, ionic strength, concentration and temperature. Thus, studying the aggregation and self-assembly of proteins in foods challenges our understanding of these complex systems from both the molecular and statistical physics perspectives. Last but not least, food offers a unique playground to study the aggregation of proteins in three, two and one dimensions, that is to say, in the bulk, at air/water and oil/water interfaces and in protein fibrillation phenomena. In this review we will tackle this very ambitious task in order to discuss the current understanding of protein aggregation in the framework of foods, which is possibly one of the broadest contexts, yet is of tremendous daily relevance.

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Section: Interfacial Rheology Of Protein Adsorption Layersmentioning

confidence: 99%

The self-assembly, aggregation and phase transitions of food protein systems in one, two and three dimensions

2013

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“…Simulations were carried out at varied surface pressures using an algorithm similar to that proposed by Dickinson and Euston for determining the equation of state of cyclic lattice chains. A constant radial force is applied to the adsorbed globule in the x − y plane of the simulation box.…”

Section: Modeling the Effect Of Surface Pressure On Protein Conformationmentioning

confidence: 99%

Simulating the Equation of State of Model Globular Proteins Adsorbed at a Surface

Euston¹,

Naser²

2005

Langmuir

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Monte Carlo computer simulation is used to follow the adsorption of a model globular and disordered protein at a hard surface and to simulate the surface equation of state for these molecules. The simulation utilizes the deformable globule model where the "protein" is treated as a collection of interacting subunits. Disordered globules are modeled as athermal molecules, whereas globular molecules have a strong attractive interaction between subunits. The surface equation of state is modeled by applying a known pressure to an adsorbed globule and following the changes in adsorbed conformation. Simulated equations of state for the disordered and globular molecules show features that are observed in experimental surface pressure versus area plots. In particular the simulated equations of state show "kinks" that correspond to regions where the adsorbed globules undergo conformational changes as they lift away from the surface in response to the increased pressure. The model proteins follow Bull's equation at low surface pressures in a way that is broadly in line with results from experiment, and the changes in conformation as a function of surface pressure are in line with predictions by DeFeijter and Benjamins made using a soft-particle model for adsorbed proteins.

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“…Finally, the proposed model was verified by using the actual trip data of well-known foreign public bicycle operators. Bicycle demand in a certain area is related to many factors, such as the distribution of infrastructure in the region to be forecasted [25,26], ambient temperature, and sunny/rainy conditions [27], unexpected large events like holidays or strikes [28,29], time period [30], etc.…”

Section: Related Workmentioning

confidence: 99%

A Hybrid Dispatch Strategy Based on the Demand Prediction of Shared Bicycles

et al. 2020

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With the advent of pile-less shared bicycles, the techniques initially used for public bicycle dispatching were unable to fulfill the routine dispatch tasks, resulting in constant bicycle crowding. In this paper, to alleviate the mess of shared bicycles, we propose a hybrid dispatching algorithm based on bicycle demand data. We take the bicycle stations’ imbalance as an optimization index and use greedy ideas to ensure that after each dispatch all stations get the smallest imbalance. In addition, it is suggested that two assessment metrics evaluate the efficiency of the dispatching technique from the users and operators’ perspectives. It is shown that the proposed dispatching algorithm performs better in terms of user satisfaction and operator revenue, and is less affected by bicycle distribution compared with the traditional manual scheduling algorithm.

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Statistical study of a concentrated dispersion of deformable particles modelled as an assembly of cyclic lattice chains

Cited by 22 publications

References 38 publications

The self-assembly, aggregation and phase transitions of food protein systems in one, two and three dimensions

The self-assembly, aggregation and phase transitions of food protein systems in one, two and three dimensions

Simulating the Equation of State of Model Globular Proteins Adsorbed at a Surface

A Hybrid Dispatch Strategy Based on the Demand Prediction of Shared Bicycles

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