This is the first definitive study dealing with modeling and simulation of unhindered and hindered creaming and sedimentation behaviors of nanoparticle-stabilized Pickering emulsions. Simulation results clearly demonstrate the strong influence of three-phase contact angle of nanoparticles present at the oil/water interface. The presence of nanoparticles at the oil/water interface has a strong influence on the creaming/sedimentation behaviors of single droplets and swarm of droplets. Pickering emulsions stabilized by monodisperse latex particles: effects of. Modeling and simulation of nanoparticle-stabilized Pickering emulsions are carried out next. The basic requirement is the food-grade status of used PPs and good stability of the resulting products. The available experimental data on settling/creaming of concentrated emulsions and suspensions are interpreted in terms of the drift flux theory. To realize its potential, nanocellulose, an amphiphilic biopolymer with the presence of rich -OH and -CH structural groups, was investigated via molecular dynamics simulation to reveal its full potential as Pickering emulsion stabilizer at the molecular level. The use of Pickering emulsions in food systems has been discussed very intensively, and PPs in simple food emulsion systems have been reviewed many times 31,32,33,34,35,36,37,38,39,40,41,42. In this article, the unhindered and hindered settling/creaming behaviors of conventional emulsions and suspensions are first reviewed briefly. It is important to understand and quantify sedimentation and creaming in such dispersed systems as they affect the shelf-life of products manufactured in the form of suspensions and emulsions. This responsive system worked well for many different types of oils and was the first to report on a protein-based CO 2/N 2-responsive emulsion, holding great promise for the development of more sustainable, green chemical conversion processes for the food, pharmaceutical, and biomedical industries.Suspensions and emulsions are prone to kinetic instabilities of sedimentation and creaming, wherein the suspended particles and droplets fall or rise through a matrix fluid. Moreover, the recycled enzyme still maintained its catalytic activity, with a conversion yield of more than 90% after each cycle, which was not found in any of the previously reported CO 2-responsive systems. More importantly, the demulsification, product separation, and recycling of the NaCas emulsifier as well as the enzyme could be facilely achieved by alternatively bubbling CO 2/N 2 more than 30 times. This work presents advances obtained via the implementation of the coarse-grained Dissipative Particle Dynamic simulation framework, DPD. The NaCas-stabilized emulsion displayed a much higher reaction efficiency compared with conventional CO 2/N 2-responsive Pickering emulsions stabilized by solid particles with functional groups from polymers or surfactants introduced to tailor responsiveness, reflected by the fact that most enzymes were transferred and enriched at the oil–water interface. mechanisms responsible for emulsions stability by providing algorithms designed to study the phenomena of interest. To understand the interactions and distribution of droplets, and to provide an understanding of the stability of Pickering emulsions, from evaluating structural and thermodynamic quantities according to the problem parameters from molecular dynamics simulations, in this respect we consider these emulsions as a colloidal suspension. The energy requirement (E ads) for desorption of spherical NPs of radius (r) can be estimated using Eq. This study aimed to report an efficient and sustainable biocatalysis system via a robust CO 2/N 2-responsive Pickering oil-in-water (o/w) emulsion stabilized solely by pure sodium caseinate (NaCas), which was made naturally in a scalable manner. This indicates that Pickering emulsions and foams are generally more stable compared to the surfactant stabilized analogue 42, 43. However, developing simple and green strategies to avoid enzyme denaturation, facilitate product separation, and achieve the recovery of enzyme and colloidal particle stabilizers is still a challenge. Pickering emulsions are emulsions stabilized by colloidal particles and serve as an excellent platform for biphasic enzymatic catalysis.
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