Molecular interactions involving aqueous Triton X-100 micelles and anionic surfactants: Investigations on surface activity and morphological transitions

Thakkar, Khushbu; Bharatiya, Bhavesh; Ray, Debes; Aswal, Vinod K.; Bahadur, Pratap

doi:10.1016/j.molliq.2016.08.086

Cited by 16 publications

(3 citation statements)

References 53 publications

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“…The compounds that increase the cloud point decrease the micelle size, while those that decrease the cloud point of the nonionic surfactant induce a significant micellar growth. The decrease in size of the micelles in the presence of ionic surfactants has been previously reported 45 and it seems to be due to a decrease in the aggregation number of the micelles. The original nonionic micelles break up when the SAIL is added and new SAIL/nonionic micelles reform with smaller number of total molecules due to the onset of headgroup electrostatic repulsions brought about by the ionic nature of the SAIL.…”

Section: Methodssupporting

confidence: 61%

Impact of Surface Active Ionic Liquids on the Cloud Points of Nonionic Surfactants and the Formation of Aqueous Micellar Two-Phase Systems

et al. 2017

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Aqueous micellar two-phase systems (AMTPS) hold a large potential for cloud point extraction of biomolecules but are yet poorly studied and characterized, with few phase diagrams reported for these systems, hence limiting their use in extraction processes. This work reports a systematic investigation of the effect of different surface-active ionic liquids (SAILs)-covering a wide range of molecular properties-upon the clouding behavior of three nonionic Tergitol surfactants. Two different effects of the SAILs on the cloud points and mixed micelle size have been observed: ILs with a more hydrophilic character and lower critical packing parameter (CPP < /) lead to the formation of smaller micelles and concomitantly increase the cloud points; in contrast, ILs with a more hydrophobic character and higher CPP (CPP ≥ 1) induce significant micellar growth and a decrease in the cloud points. The latter effect is particularly interesting and unusual for it was accepted that cloud point reduction is only induced by inorganic salts. The effects of nonionic surfactant concentration, SAIL concentration, pH, and micelle ζ potential are also studied and rationalized.

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Section: Methodssupporting

confidence: 61%

Impact of Surface Active Ionic Liquids on the Cloud Points of Nonionic Surfactants and the Formation of Aqueous Micellar Two-Phase Systems

et al. 2017

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“…Different properties (interfacial, micellization, drugs solubilization ability, clouding property, etc.) of TX-100 in the occurrence of charge amphiphiles have been analyzed by means of experimental methods [ 3 , 12 , 13 ]. TX-100 varies from other conventional nonionic surfactants because their hydrophilic portion was found to be longer compared with the hydrophobic section of the monomer [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Interaction of TX-100 and Antidepressant Imipramine Hydrochloride Drug Mixture: Surface Tension, 1H NMR, and FT-IR Investigation

Rub

Azum

Kumar

et al. 2022

Gels

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Interfacial interaction amongst the antidepressant drug-imipramine hydrochloride (IMP) and pharmaceutical excipient (triton X-100 (TX-100-nonionic surfactant)) mixed system of five various ratios in dissimilar media (H2O/50 mmol·kg−1 NaCl/250 mmol·kg−1 urea) was investigated through the surface tension method. In addition, in the aqueous solution, the 1H-NMR, as well as FT-IR studies of the studied pure and mixed system were also explored and deliberated thoroughly. In NaCl media, properties of pure/mixed interfacial surfaces enhanced as compared with the aqueous system, and consequently the synergism/attractive interaction among constituents (IMP and TX-100) grew, whereas in urea (U) media a reverse effect was detected. Surface excess concentration (Γmax), composition of surfactant at mixed monolayer (X1σ), activity coefficient (f1σ (TX-100) and f2σ (IMP)), etc. were determined and discussed thoroughly. At mixed interfacial surfaces interaction, parameter (βσ) reveals the attractive/synergism among the components. The Gibbs energy of adsorption (ΔGadso) value attained was negative throughout all employed media viewing the spontaneity of the adsorption process. The 1H NMR spectroscopy was also employed to examine the molecular interaction of IMP and TX-100 in an aqueous system. FT-IR method as well illustrated the interaction amongst the component. The findings of the current study proposed that TX-100 surfactant could act as an efficient drug delivery vehicle for an antidepressant drug. Gels can be used as drug dosage forms due to recent improvements in the design of surfactant systems. Release mechanism of drugs from surfactant/polymer gels is dependent upon the microstructures of the gels and the state of the drugs within the system.

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“…They found that, when the content of NP-40 in the surfactant mixture is 80 wt %, it results in the most stable latex particles and greatest polymerization rate. They proposed that anionic emulsifiers form mixed micelles with nonionics and increase the space charge repulsion between micelles, thus leading to their stabilization. , Besides, the nonionic–anionic surfactant mixtures could help to elevate the clouding point (CP) of nonionic surfactants and decrease the kraft point (KP) of anionic surfactants, and sodium dodecyl benzenesulfonate (SDBS) plus Triton X-100 (TX-100) is an example reported by Goel . Therefore, we envision that the usage of a mixed nonionic–anionic emulsifier is promising to guarantee the operating stability of emulsion polymerization in the tubular reactor, although there is no related report until now to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

Continuous Flow Synthesis of Polystyrene Nanoparticles via Emulsion Polymerization Stabilized by a Mixed Nonionic and Anionic Emulsifier

Liu

Lü

Luo

2017

Ind. Eng. Chem. Res.

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Conducting emulsion polymerization in continuous flow mode for polymer nanoparticle synthesis has the potential to improve productivity and reliability but has to face the fact that the emulsion is difficult to remain stable without stirring. In this work, a mixed nonionic–anionic emulsifier TX-100/SDBS (4:1) was found to perform much better in stabilizing pre-emulsion than anionic emulsifier SDBS and then was exploited in the microflow system to achieve reliable operation, controllable conversion, and continuous synthesis of nanoparticles with uniform size (PDI < 0.09). The reaction temperature could be elevated to 95 °C, and the emulsifier concentration could be decreased to 8.515 mM. The average size of the nanoparticles was facilely adjusted from 52 to 92 nm by changing the emulsifier concentration.

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Molecular interactions involving aqueous Triton X-100 micelles and anionic surfactants: Investigations on surface activity and morphological transitions

Cited by 16 publications

References 53 publications

Impact of Surface Active Ionic Liquids on the Cloud Points of Nonionic Surfactants and the Formation of Aqueous Micellar Two-Phase Systems

Impact of Surface Active Ionic Liquids on the Cloud Points of Nonionic Surfactants and the Formation of Aqueous Micellar Two-Phase Systems

Interaction of TX-100 and Antidepressant Imipramine Hydrochloride Drug Mixture: Surface Tension, 1H NMR, and FT-IR Investigation

Continuous Flow Synthesis of Polystyrene Nanoparticles via Emulsion Polymerization Stabilized by a Mixed Nonionic and Anionic Emulsifier

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