NMR diffusometry and conductometry study of the host–guest association between β-cyclodextrin and dodecane 1,12-bis(trimethylammonium bromide)

Cabaleiro-Lago, Celia; Nilsson, Markus; Valente, Artur J.M.; Bonini, Massimo; Söderman, Olle

doi:10.1016/j.jcis.2006.04.016

Cited by 30 publications

(16 citation statements)

References 34 publications

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“…Inclusion complexes between CD (alfa, beta and gamma) and surfactants in aqueous solution have been studied and characterized by a wide battery of techniques: conductometry [20,21], measurement of speed of sound [22,23], isothermal calorimetry [24], chemical shift NMR [25], self-diffusion NMR [5,26,27], fluorescence [28], surfactant selective electrode [29], surface tension [30], and kinetic methods [31]. However, relatively few studies deal with gemini surfactants and their interactions with cyclodextrins.…”

Section: Introductionmentioning

confidence: 99%

The effect of the head-group spacer length of 12-s-12 gemini surfactants in the host–guest association with β-cyclodextrin

Carvalho

Correia

Valente

et al. 2011

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

The effect of the head-group spacer length of 12-s-12 gemini surfactants in the host–guest association with β-cyclodextrin

Carvalho

Correia

Valente

et al. 2011

Journal of Colloid and Interface Science

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“…A fully systematic studies on the interaction of shorter chain bolaform surfactants (with 12 methylene groups or less) with cyclodextrins were reported by Macartney [332] and Söderman [98,292]. Starting with β-CD-containing systems, the interaction of dodecane 1,12-bis(trimethylammonium bromide), C 12 Me 6 Br 2 , with β-cyclodextrin leads to the formation of a 1:1 complex with binding constants of 3000 and 2500 M −1 (Table 10) as obtained by 1 H NMR self-diffusion and electrical conductivity, at 298.15 K, respectively [292].…”

mentioning

confidence: 98%

“…Starting with β-CD-containing systems, the interaction of dodecane 1,12-bis(trimethylammonium bromide), C 12 Me 6 Br 2 , with β-cyclodextrin leads to the formation of a 1:1 complex with binding constants of 3000 and 2500 M −1 (Table 10) as obtained by 1 H NMR self-diffusion and electrical conductivity, at 298.15 K, respectively [292]. The resulting complex shows a size similar to that of a bare CD as seen by NMR diffusometry.…”

mentioning

confidence: 99%

The formation of host–guest complexes between surfactants and cyclodextrins

Valente

Söderman

2014

Advances in Colloid and Interface Science

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178

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Cyclodextrins are able to act as host molecules in supramolecular chemistry with applications ranging from pharmaceutics to detergency. Among guest molecules surfactants play an important role with both fundamental and practical applications. The formation of cyclodextrin/surfactant host-guest compounds leads to an increase in the critical micelle concentration and in the solubility of surfactants. The possibility of changing the balance between several intermolecular forces, and thus allowing the study of, e.g., dehydration and steric hindrance effects upon association, makes surfactants ideal guest molecules for fundamental studies. Therefore, these systems allow for obtaining a deep insight into the host-guest association mechanism. In this paper, we review the influence on the thermodynamic properties of CD-surfactant association by highlighting the effect of different surfactant architectures (single tail, double-tailed, gemini and bolaform), with special emphasis on cationic surfactants. This is complemented with an assessment of the most common analytical techniques used to follow the association process. The applied methods for computation of the association stoichiometry and stability constants are also reviewed and discussed; this is an important point since there are significant discrepancies and scattered data for similar systems in the literature.In general, the surfactant-cyclodextrin association is treated without reference to the kinetics of the process. However, there are several examples where the kinetics of the process can be investigated, in particular those where volumes of the CD cavity and surfactant (either the tail or in special cases the head group) are similar in magnitude.This will also be critically reviewed.

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“…This is, on the other side, good for fabrication of vesicles that can endure very acidic or alkaline conditions. Recently, b-CD is reported to form complexes with some bolaamphiphiles [94,95]; it is therefore might be potentially used to tailor the morphology of the aggregates in the catanionic bola/surfactant mixed systems, as they have successfully done in conventional catanionic surfactant mixed systems [96].…”

Section: Tunable Morphologies Of the Self-assembled Structuresmentioning

confidence: 99%

Recent advances in the mixed systems of bolaamphiphiles and oppositely charged conventional surfactants

Yan

Huang

2009

Journal of Colloid and Interface Science

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NMR diffusometry and conductometry study of the host–guest association between β-cyclodextrin and dodecane 1,12-bis(trimethylammonium bromide)

Cited by 30 publications

References 34 publications

The effect of the head-group spacer length of 12-s-12 gemini surfactants in the host–guest association with β-cyclodextrin

The effect of the head-group spacer length of 12-s-12 gemini surfactants in the host–guest association with β-cyclodextrin

The formation of host–guest complexes between surfactants and cyclodextrins

Recent advances in the mixed systems of bolaamphiphiles and oppositely charged conventional surfactants

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