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anionic surfactants; cationic surfactants; nonionic surfactants, etc ; antioxidants; droplet size; emulsifiers; emulsions; food industry; hydrocolloids; lactic acid; mayonnaise; microgels; oils; oxidation; pea protein; protein isolates; resveratrol; sodium; viscosity; xanthan gum; Show all 20 Subjects
Abstract:
... Properties of 50/50 oil/water emulsion stabilized by pea protein isolate microgel particles (PPIMP)/xanthan gum (XG) and co-emulsifiers were evaluated. Three surfactants with different charging characteristics (lauric arginate, LAE, cationic surfactant; diacetyl tartaric acid esters of mono- and diglycerides, DATEM, nonionic surfactant; sodium stearyl lactate, SSL, anionic surfactant) were selecte ...
... Microalgal biomass harvesting and cell disruption are the main bottlenecks for downstream processing of microalgae such as high-value bioproducts extraction and biofuels production. In this study, we evaluated the performance of dual flocculation between cationic surfactants and bio-polymer of chitosan for simultaneous biomass harvesting and bioproducts extraction from Chlorella sorokiniana microa ...
... The study described the synthesis, characterization, and application of newly prepared sulfathiazole-modified amide/imide co-polymers for the extraction of trace Sb(III) from edible vegetable oils. The method was based on the pH-dependent complexation between Sb(III) and chelators as a result of charge transfer via tautomerization in presence of the mixed ionic surfactants in 5%(v/v) 2-propanol, 1 ...
surfactants, etc ; agricultural wastes; biomass; biosorbents; contact angle; corn stover; human health; hydrophobicity; laccase; lignin; oils; pith; pollution; sorbents; sorption; synthesis; van der Waals forces; wastewater; China; Show all 19 Subjects
Abstract:
... Oil pollution is causing deleterious damage to aquatic ecosystems and human health. The utilization of agricultural waste such as corn stalk (CS) to produce biosorbents has been considered an ecofriendly and efficient approach for removing oil. However, most previous studies focused on the modification of the whole CS, which is inefficient due to the heterogeneity of CS. In this study, corn stalk ...
anionic surfactants, etc ; Gadus morhua; allergens; anion exchange chromatography; chemical precipitation; fish; food chemistry; heat treatment; muscle protein; polyacrylamide gel electrophoresis; sodium dodecyl sulfate; solubility; thiols; tropomyosins; Show all 14 Subjects
Abstract:
... Tropomyosin, a myofibrillar muscle protein, has been recognized as a finfish allergen. In this study, tropomyosin from Atlantic cod fillets (Gadus morhua, CTM) was purified using a two-step purification strategy (isoelectric precipitation and anion-exchange chromatography). CTM structural configuration in two sample matrices (impure and pure) were elaborated using different polyacrylamide gel elec ...
surfactants, etc ; Fourier transform infrared spectroscopy; antioxidant activity; antioxidants; bioactive compounds; cellulose; contact angle; droplet size; fish; fractionation; gel chromatography; hydrocolloids; hydrophobicity; ingredients; moieties; nanocrystals; nanoemulsions; nuclear magnetic resonance spectroscopy; oxidation; Show all 19 Subjects
Abstract:
... A novel type of emulsifiers (STOC- SAC0, SAC8 & SAC12) were synthesized from nature-abundant cellulose by a two-step process: preparartion of soluble cellulose by TEMPO-mediated oxidation of cellulosic nanocrystal and fractionation (STOC), and introduction of hydrophobic moiety by alkyl (C0, C8 & C12)succinylation of resulting soluble polysaccharides. The synthetic products were structurally verif ...
anionic surfactants; cationic surfactants, etc ; colloids; mixtures; solubilization; surfaces; wills; Show all 7 Subjects
Abstract:
... Precipitates occur readily in the aqueous mixture of cationic and anionic surfactants. We report that the precipitates formed in the catanionic surfactant systems at charge ratios deviated from 1:1 can be solubilized by simply increasing the total surfactant concentrations. At higher concentrations, there are vesicles in the supernatant, which will sequester the monomer surfactant in equilibrium w ...
anionic surfactants; cationic surfactants; nonionic surfactants, etc ; cetyltrimethylammonium bromide; filtration; groundwater; human health; pollution; polysorbates; remediation; research; sodium dodecylbenzenesulfonate; titanium dioxide; Show all 13 Subjects
Abstract:
... Nanomaterials are threatening the environment and human health, but there has been little discussion about the stability and mobility of nanoparticles (NPs) in saturated porous media at environmentally relevant concentrations of surfactants, which is a knowledge gap in exploring the fate of engineered NPs in groundwater. Therefore, the influences of the anionic surfactant (sodium dodecylbenzene su ...
... Pairs of peptide amphiphiles with immiscible hydrophobic tails were synthesized and their assembly formation was investigated. These pairs formed self-sorting supramolecular fibres using a standard heating–cooling protocol, while one pair with longer hydrophobic tails formed a co-assembly when an additional heating process was applied. ...
... This study aimed to quantify the effect of membrane surface porosity on particulate fouling predicted by the MFI-UF method at constant flux. Firstly, the surface porosity of polyethersulfone UF membranes (5–100 kDa) was determined using ultra-high resolution SEM. Thereafter, the MFI-UF was measured using suspensions of polystyrene particles (75 nm), which were pre-washed to remove surfactant and p ...
... Recent developments in the study of the formation of self-assembled surfactant structures and multilayers at the solid-solution interface are presented. It covers a wide range of phenomena, but in this review the main focus is on the surface structures formed from dilute solution in the presence of electrolyte and in more concentrated solutions. Their formation under those conditions are set in th ...
... The surface dilatational and shear moduli of surfactant and protein interfacial layers can be derived from surface pressures measured with a Wilhelmy plate parallel, ΔΠpar and perpendicular ΔΠperp to the barriers in a Langmuir trough. Applying area oscillations, A0+ ΔAeiωt, in a rectangular Langmuir trough induces changes in surface pressure, ΔΠpar and ΔΠperp for monolayers of soluble palmitoyl-ly ...
... Fullerene C₆₀ is an all-carbon cage molecule with rich physicochemical properties. It is highly symmetric and hydrophobic, which can be used as a building block for the preparation of amphiphiles that self-assemble into diverse supramolecular structures in aqueous solutions. Meanwhile, C₆₀ is also lipophobic, which is different from the alkyl chains in traditional surfactants. By attaching alkyl c ...
anionic surfactants; nonionic surfactants, etc ; bioremediation; microbial activity; petroleum; polysorbates; sludge; sucrose; technology; water content; Show all 10 Subjects
Abstract:
... This research documents the effects of Tween 80 as a nonionic surfactant and sodium dodecyl sulfate (SDS) as an anionic surfactant on the bioremediation of oily sludge. An oily sludge batch with TPH (total petroleum hydrocarbon) content of 6.8% was obtained from a gasoil storage facility. Both surfactants were examined at dosage levels of 0, and 2 mg/kg, each at three moisture content of 15, 25, a ...
... Cellular functions are regulated with high spatial control through the local activation of chemical processes in a complex inhomogeneous matrix. The development of synthetic macroscopic systems with a similar capacity allows fundamental studies aimed at understanding the relationship between local molecular events and the emergence of functional properties at the macroscopic level. Here, we show t ...
surfactants, etc ; biomimetics; industry; liquids; wettability; Show all 5 Subjects
Abstract:
... The overflow behavior of liquid at a curved surface or a surface border is a common phenomenon in many circumstances of daily life and industry. Accurate control of overflow is beneficial for improving the convenience of our daily life and efficiency of production, thus has great importance not only for enhancing existing applications but for creating new products. The effect of surface wettabilit ...
surfactants, etc ; ethylbenzene; hydrophobicity; octane; solubilization; Show all 5 Subjects
Abstract:
... Hydrocarbons are well-known insoluble oils which are rarely considered as stimuli to trigger molecular self-assembly transition. We report in this work that hydrocarbons are a class of distinct stimuli for the self-assembly transition in the catanionic surfactant systems. Particularly, the cyclic hydrocarbons and chain-like ones has exactly opposite impact. By solubilizing in the palisade region o ...
surfactants, etc ; microstructure; nanoparticles; rheology; rheometers; Show all 5 Subjects
Abstract:
... Particle-laden fluid interfaces are the central component of many natural and engineering systems. Understanding the mechanical properties and improving the stability of such interfaces are of great practical importance. Janus particles, a special class of heterogeneous colloids, might be used as an effective surface-active agent to control the assembly and interfacial rheology of particle-laden f ...
... Crude oil often contains long-chain fatty acid components. The fatty acid usually exists as a dissociative anionic surfactant in the oil phase. This study introduced a novel cationic surfactant to absorb the in situ anionic surfactant. Thus, a dual surfactant system was formed, and surfactant aggregates were produced near the water–oil interface. Due to the viscoelastic and fragile aggregates, spo ...
surfactants, etc ; amyloid; neurotoxicity; peptides; therapeutics; Show all 5 Subjects
Abstract:
... α-Synuclein (a-syn) oligomers and fibrils are behind neurodegeneration in Parkinson’s disease (PD), but therapeutically targeting them is challenging. Amphipathic and cationic helical peptides inhibit amyloid formation and suppress neurotoxicity by selectively binding the solvent-accessible regions in these toxic species. Can endogenous peptides, like LL-37, constitute a new therapeutic paradigm i ...