Viscosity and Percolative Phenomena in AOT based Microemulsions

Cid, Antonio; Gómez‐Díaz, Diego; Mejuto, J. C.; Navaza, José M.

doi:10.3139/113.110119

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…Cao et al [ 29 ] reported using an ionic surfactant, sodium di-2-ethyl hexyl sulfosuccinate [ 30 , 31 , 32 ] (AOT), to activate or charge PS nanoparticles of different sizes: 141, 311, and 535 nm. The behavior of nanoplastics showed that the PS/AOT/water system’s charging mechanism was adsorption-dominated, revealing the importance of the association between the activation of the particle surfaces and particle charging.…”

Section: Methodsmentioning

confidence: 99%

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Recent Advances in the Aggregation Behavior of Nanoplastics in Aquatic Systems

Cid-Samamed,

Diniz

2023

IJMS

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This short review aims to critically discuss the recent advances in supramolecular chemistry to achieve the aggregation of nanoplastics in aquatic systems. Polymer modification provides a vital tool for designing novel and ad hoc synthesized surfactants with properties tuned for some specific applications (e.g., stimuli-responsive nanomaterial, conducting polymers), mainly to aggregate other polymers from the environment. Far from the typical use of surfactants, which ease the dispersion of insoluble molecules in water media or aid solubilization of insoluble molecules on local media, in this case, nanoarchitectonics serve researchers to design surfactants with a focus on the capture of nanoplastics from the environment. Additionally, monovalent and divalent salt additions aided NPs in coagulating in the aquatic systems. Finally, the latest research on NPs’ removal efficiency on wastewater treatment plant is reviewed to summarize the advances.

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Section: Methodsmentioning

confidence: 99%

“…Cao et al [ 29 ] assessed the charge-mediating of PSNPs using AOT surfactant in aqueous solutions [ 30 , 31 , 32 ]. PSNPs were obtained with three different sizes: 141, 311, and 535 nm.…”

Section: Methodsmentioning

confidence: 99%

Recent Advances in the Aggregation Behavior of Nanoplastics in Aquatic Systems

Cid-Samamed,

Diniz

2023

IJMS

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“…Varying droplets' radii authors were able to control particle dimension. They reported that the proper selection of microemulsion components would ease the exchange of reagents between the "transition dimers" formed by two droplets of the microemulsions; for this to happen, an important alteration in the local curvature is necessary, so the selection of adequate surfactants that shows a radius of curvature close to their natural radius will facilitate the opening of channels [4][5][6][7][8][9], particle formation, and growth. Once the particles are formed, the surfactant particles act as surface agents, limiting the future growth of the particles.…”

Section: Metal Nanoparticles (Mnps) 21 Anionic Surfactantsmentioning

confidence: 99%

Synthesis of NPs by Microemulsion Method

Cid¹

2018

Microemulsion - A Chemical Nanoreactor [Working Title]

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Microemulsions are self-aggregated colloidal systems that provide a controllable system with a promising application as nanoreactors: they can act as pools within which the properties of the nanoparticles can be controlled without difficulty. So in this chapter, I will deal with the metal NPs synthesized by the microemulsion method. This method allows in some cases to control the properties of size, shape, and crystal structure of the metallic NPs, thus generating with the same reagents a series of seeds of different shapes and sizes. The control of the reaction time, the temperature, and the reaction conditions will give us a production of different geometries that will find different applications in large range of research fields.

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“…Internal dynamics of microemulsions has been largely studied, especially on the phenomenon of electrical percolation [1][2][3][4]. Electrical percolation is characterized by an increment in electrical conductivity when the temperature, or the volume fraction of the dispersed phase, reaches a critical value [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of Amphiphiles on Percolation of AOT-Based Microemulsions Prediction Using Artificial Neural Networks

Astray¹,

Cid²,

Moldes³

et al. 2017

Properties and Uses of Microemulsions

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In this chapter, the ability of artificial neural networks was evaluated to predict the influence of amphiphiles as additive upon the electrical percolation of dioctyl sodium sulfosuccinate (AOT)/isooctane/water microemulsions. In particular, water/AOT/isooctane microemulsion behaviour has been modelled. These microemulsions have been developed in presence of 1-n-alcohols, 2-n-alcohols, n-alkylamines and n-alkyl acids. In all cases, a neural network has been obtained to predict with accuracy the experimental behaviour to identify the physico-chemical variables (such as additive concentration, molecular mass, log P, pK a or chain length) that exert a greater influence on the model. All models are valuable tools to evaluate the percolation temperature for AOT-based microemulsions.

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Viscosity and Percolative Phenomena in AOT based Microemulsions

Cited by 8 publications

References 21 publications

Recent Advances in the Aggregation Behavior of Nanoplastics in Aquatic Systems

Recent Advances in the Aggregation Behavior of Nanoplastics in Aquatic Systems

Synthesis of NPs by Microemulsion Method

Influence of Amphiphiles on Percolation of AOT-Based Microemulsions Prediction Using Artificial Neural Networks

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