Dynamics of micellar oligomeric and monomeric sodium 10-undecenoate

Gambogi, Robert J.; Blum, Frank D.

doi:10.1016/0021-9797(90)90372-u

Cited by 19 publications

(10 citation statements)

References 18 publications

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“…The GPC analysis of oSUD (Figure S2 in the SI) showed a single peak with a molecular mass of ∼3300 ± 150 Da, which resulted in a degree of polymerization of 17 ± 1, that was in good agreement with previous results. 16 The oligomers arranged in micelles, with a micellar size, determined by DLS, of 3.1 ± 0.6 nm.…”

Section: Characterization Of Oligomeric Undecylenate (Osud)mentioning

confidence: 99%

“…14 Oligomeric surfactants, 15 sometimes called oligomeric micelles, "surfmers", or "polysoaps", are a family of amphiphiles whose insights have started to be revealed in the past decade. Sodium undecylenate (SUD), which is the most studied surfmer, in which molecules are covalently bonded tail-to-tail, 16 has been proved to have no critical micelle concentration (cmc), which implies the formation of aqueous micelles at all concentrations. 17 These micelles show high stability because of the fact that surfactant molecules do not exchange with the equilibrium solution or with each other.…”

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confidence: 99%

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Multicore Magnetic Nanoparticles Coated with Oligomeric Micelles: Characterization and Potential for the Extraction of Contaminants over a Wide Polarity Range

et al. 2016

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Oligomeric micelles from sodium undecylenate (oSUD) were chemisorbed to magnetic iron oxide nanoparticles (MNPs) through a single-step synthetic route involving the simultaneous nanoparticle formation and functionalization in an aqueous medium. The resulting spherical nanoparticles (MNPs-oSUD) consisted of a concatenation of iron oxide cores, with an average size of 7.7 nm, bound by oSUD micelles (particle average diameter of ca. 200 nm). Micellar coverage was ∼50% of the MNP-oSUD (by weight) and offered multiple retention mechanisms (e.g., dispersion, hydrogen bonding, polar, and ionic) for solute solubilization while keeping it intact during analyte elution. The high density of micelles and variety of interactions provided by this sorbent rendered it highly efficient for the extraction of aromatic amines in a wide polarity range (log K values from -0.80 to 4.05) from textiles, urine, and wastewater. Extraction took 5 min, no cleanup or evaporation of the extracts was needed and the method, based on LC-MS/MS quantitation, proved matrix-independent. Recoveries for 17 aromatic amines in samples were in the range of 93%-123% while those with negative log K values were in the range of 69%-87%. Detection limits for aromatic amines in textiles (0.007-2 mg kg) were well below the limits legislated by the European Union (EU) (30 mg kg) and those in urine and wastewater (0.004-1.5 μg L) were at the level usually found in real-world applications. All the analyzed samples were positive in aromatic amines. The easy synthesis and excellent extraction properties of MNPs-oSUD anticipate their high potential not only for multiresidue analysis but also in other fields such as water remediation.

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Section: Characterization Of Oligomeric Undecylenate (Osud)mentioning

confidence: 99%

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confidence: 99%

Multicore Magnetic Nanoparticles Coated with Oligomeric Micelles: Characterization and Potential for the Extraction of Contaminants over a Wide Polarity Range

et al. 2016

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“…Admicellar polymerization requires formation of a stable double layer of surfactants on the surface of MPs and adsorption of the primary layer onto MPs alters the surface from a hydrophilic state to hydrophobic one thus acting as a suitable substrate for encapsulating hydrophobic polymers. We found that a 10-undecenoic acid primary layer, which has vinyl groups for copolymerization with proper monomers [29,30], was uniformly adsorbed onto individual MPs. The second surfactant layer to cover the MPs with the adsorbed primary layer must enable dispersion of the particles in aqueous solution.…”

Section: Resultsmentioning

confidence: 98%

Development of novel magnetic nano-carriers for high-performance affinity purification

Nishio

Masaike

Ikeda

et al. 2008

Colloids and Surfaces B: Biointerfaces

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“…They are now commonly used in formulating products such as cosmetics, paints, foodstuffs, and petroleum production additives. Polymeric surfactants [45][46] have gained popularity as potential pseudostationary phases for separations in MEKC in the recent years [47][48][49][50][51][52]. A considerable interest in the use of polymeric surfactants arises because of their distinct advantages over conventional micelles.…”

Section: Polymeric Surfactantsmentioning

confidence: 99%