Surfactant mediated particle aggregation in nonpolar solvents

Farrokhbin, Mojtaba; Stojimirovic, Biljana; Galli, Marco; Aminian, M. Khajeh; Hallez, Yannick; Trefalt, Gregor

doi:10.1039/c9cp01985e

Cited by 17 publications

(6 citation statements)

References 64 publications

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“…To elucidate the influence of surfactant adsorption on the aggregation behavior of nanoparticles, Farrokhbin et al dispersed three types (amidine latex, silica, and sulfate latex) of nanoparticles in non-polar solvent (decane) and added an anionic surfactant (SDS) and assessed the parameters for aggregation based on the DLVO theory (shielding distance, surface charge, and van der Waals force). 69 As a result, they reported an increase in inhibition of aggregation and stabilization of dispersion in a concentration-dependent manner until the concentration of anionic surfactant in the system reached a certain concentration. Espinosa et al also reported that the dispersion of poly (methyl methacrylate) nanoparticles was stabilized in non-polar solvents (hexane) when a nonionic surfactant (sorbitan trioleate, also named as Span 85) was present in the system.…”

Section: Surfactant-coated Nanoparticlesmentioning

confidence: 98%

A Critical Review of the Use of Surfactant-Coated Nanoparticles in Nanomedicine and Food Nanotechnology

Miyazawa¹,

Itaya²,

Burdeos³

et al. 2021

IJN

104

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Surfactants, whose existence has been recognized as early as 2800 BC, have had a long history with the development of human civilization. With the rapid development of nanotechnology in the latter half of the 20th century, breakthroughs in nanomedicine and food nanotechnology using nanoparticles have been remarkable, and new applications have been developed. The technology of surfactant-coated nanoparticles, which provides new functions to nanoparticles for use in the fields of nanomedicine and food nanotechnology, is attracting a lot of attention in the fields of basic research and industry. This review systematically describes these "surfactant-coated nanoparticles" through various sections in order: 1) surfactants, 2) surfactant-coated nanoparticles, application of surfactant-coated nanoparticles to 3) nanomedicine, and 4) food nanotechnology. Furthermore, current progress and problems of the technology using surfactant-coated nanoparticles through recent research reports have been discussed.

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Section: Surfactant-coated Nanoparticlesmentioning

confidence: 98%

A Critical Review of the Use of Surfactant-Coated Nanoparticles in Nanomedicine and Food Nanotechnology

Miyazawa¹,

Itaya²,

Burdeos³

et al. 2021

IJN

104

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“…When the size and electrical charge are evaluated together, it can be said that a high electrical charge prevents aggregation and retention in the sand filter [49]. The lower stability observed for lower concentrations can be related to the lower magnitude of the particles' ζ potentials [50].…”

Section: Effect Of the Npls Surface Propertiesmentioning

confidence: 99%

Retention and Transport of Nanoplastics with Different Surface Functionalities in a Sand Filtration System

Okutan,

Hul,

Stoll

et al. 2023

Nanomaterials

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The efficiency of sand filtration was investigated in terms of the behavior of the nanoplastics (NPLs) with different surface functionalities. The initial condition concentrations of NPLs were varied, and their effects on retention and transport were investigated under a constant flow rate in saturated porous media. The behavior of NPLs in this porous system was discussed by considering Z- average size and zeta (ζ) potential measurements of each effluent. The retention efficiencies of NPLs were ranked as functionalized with amidine [A-PS]+ > with sulfate [S-PS]− > with surfactant-coated amidine [SDS-A-PS]−. The reversibility of the adsorption process was revealed by introducing surfactant into the sand filter system containing adsorbed [A-PS]+ at three different initial state concentration conditions. The deposition behavior on sand grain showed that positively charged NPLs were attached to the quartz surface, and negatively charged NPLs were attached to the edge of the clay minerals, which can be caused by electrical heterogeneities. The homoaggregates made of positively charged NPLs were more compact than those made of negatively charged NPLs and surfactant-coated NPLs. An anti-correlation was revealed, suggesting a connection between the fractal dimension (Df) of NPL aggregates and retention efficiencies. Increased Df values are associated with decreased retention efficiencies.The findings underscore the crucial influence of NPL surface properties in terms of retention efficiency and reversible adsorption in the presence of surfactants in sand filtration systems.

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“…Farrokhbin et al. studied the aggregation behavior of aqueous suspensions of two types of silica particles, with and without surfactant coatings, in nonpolar media [119] . The solution was treated by Aerosol‐OT (trade name of Fischer Scientific) in n ‐decane solvent and measured the agglomeration kinetics through electrophoretic mobility, zeta potential.…”

Section: Importance and Application Of Zeta Potentialmentioning

confidence: 99%

Revisiting Zeta Potential, the Key Feature of Interfacial Phenomena, with Applications and Recent Advancements

et al. 2022

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Surface of a particle is inevitably charged. When the particle is surrounded by a fluid a potential difference arises between the surface and bulk, called zeta potential (ζ) which controls many interfacial properties of the particle involving in suspension, emulsion, colloid etc. Many phenomena happening around us have at least one step that passes through an interface. Thus, the application of ζ is practically uncountable. Discovered in late 19th century, almost past 120 years, the application of ζ has emerged in many areas to meet the fruitful need of mankind. However, to the best of our knowledge, there is no report disclosed citing the applications at one place as a ready tool for the readers. The present review accumulates extensive survey of literature, bringing out various aspects of ζ in chemistry, engineering, biology, material, and environmental sciences. A brief theoretical background mentioning the principle and practical applications were focused.

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Surfactant mediated particle aggregation in nonpolar solvents

Cited by 17 publications

References 64 publications

A Critical Review of the Use of Surfactant-Coated Nanoparticles in Nanomedicine and Food Nanotechnology

A Critical Review of the Use of Surfactant-Coated Nanoparticles in Nanomedicine and Food Nanotechnology

Retention and Transport of Nanoplastics with Different Surface Functionalities in a Sand Filtration System

Revisiting Zeta Potential, the Key Feature of Interfacial Phenomena, with Applications and Recent Advancements

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