Study of interaction between chitosan and sodium lauryl ether sulfate

Petrović, Ljiljana; Milinković, Jelena; Fraj, Jadranka; Bučko, Sandra; Katona, Jaroslav; Spasojević, Ljiljana

doi:10.1007/s00396-017-4205-7

Cited by 8 publications

(24 citation statements)

References 30 publications

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“…In our previous study, several different techniques (turbidimetry, viscometry, tensiometry, electrophoretic mobility, etc.) were combined in order to investigate interaction mechanisms between Ch and SLES indicated the existence of different interaction mechanisms leading to the formation of complexes of different properties (19). It was observed that at relatively low concentration of SLES, soluble Ch/SLES complex occurs while a stable coacervate was formed at mass ratio of Ch:SLES 1:2.…”

Section: Resultsmentioning

confidence: 99%

“…At this mass ratio coacervate phase fully precipitated from solution. Further increase of SLES concentration leads to re-dissolution of coacervate phase (19). Since the formed complexes show different physicochemical characteristics depending on the mass ratio of chitosan and SLES, there were interesting to investigate the rheological properties of their aqueous solutions.…”

Section: Resultsmentioning

confidence: 99%

“…Based on previous studies mass ratios of Ch:SLES (140:1; 14:1; 7:1; 3:1; 1,4:1; 1:2; 1:3,5; 1:7) were chosen and they cover the region before and after insoluble coacervate formation (19). Chitosan concentration was 0.2% (w/w).…”

Section: Resultsmentioning

confidence: 99%

“…The application of coacervates depends greatly on their rheological properties systematically explored the mechanism involved in the rheological properties of coacervates (8). In our previous study (19) several different techniques were combined in order to investigate interaction mechanisms between Ch and sodium lauryl ether sulfate (SLES) and the influence of Ch concentration on the behavior of Ch/SLES complexes in the bulk and at the interfaces. These data were complemented by turbidity, viscosity, and electrophoretic mobility measurements, thus providing information on association in the bulk phase, which allowed a better understanding of their behavior at the air/water interface (19).…”

Section: Introductionmentioning

confidence: 99%

“…In our previous study (19) several different techniques were combined in order to investigate interaction mechanisms between Ch and sodium lauryl ether sulfate (SLES) and the influence of Ch concentration on the behavior of Ch/SLES complexes in the bulk and at the interfaces. These data were complemented by turbidity, viscosity, and electrophoretic mobility measurements, thus providing information on association in the bulk phase, which allowed a better understanding of their behavior at the air/water interface (19). Nevertheless, the rheological properties of the formed coacervates have not been investigated yet.…”

Section: Introductionmentioning

confidence: 99%

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Rheological characterisation of chitosan/sodium lauryl ether sulfate complexes

et al. 2019

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Chitosan is a cationic biopolymer, which attracts more and more attention in recent years, due to its exceptional physical and chemical properties, expressive biocompatibility and possibilities of obtaining from renewable sources. Formed polymer/surfactant complexes affect changes in the rheological properties and the final result is the formation of coacervates. The purpose of this study was to investigate the rheological properties of aqueous solutions of cationic polyelectrolyte, chitosan and sodium lauryl ether sulfate (SLES), an anionic surfactant, widely used in the cosmetics industry. Using the Thermo Haake RS600 rheometer, changes in the rheological and elastic properties of chitosan and SLES mixtures have been identified, gained as a result of the interaction of the components. In all examined samples coefficient of thixotropy was increasing with increase SLES concentration and achieves a maximum value at the mass ratio chitosan:SLES 1:2, after which it reduces. The oscillatory measurements in mixtures, performed by amplitude sweep method at low oscillating frequency 1 Hz, show that the linear viscoelastic region increases with increasing SLES concentration up to the same chitosan:SLES mass ratio. By monitoring the changes in the rheological parameters of the mixtures over five days, it was observed that the viscosity, the coefficient of thixotropy and elasticity were increasing, indicating that changes in the system occur over a longer period of time. In that manner, obtained results indicate the possibility of using rheological methods for a more detailed description of the interaction in the chitosan/SLES mixtures, important for their application in cosmetics and pharmaceutical industries.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rheological characterisation of chitosan/sodium lauryl ether sulfate complexes

et al. 2019

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Unusual Compatibility of N‐Reacetylated Oligochitosan with Sodium Dodecyl Sulfate in Aqueous Solution with a Wide Range of the Solution pH

et al. 2021

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N‐reacetylated oligochitosan (RA‐oligoCHI) with molecular weight ≤ 12 kDa and a random‐type distribution of acetyl groups can form soluble RA‐CHI/SDS (SDS; sodium dodecyl sulfate) complexes and transparent solutions both in acidic, where RA‐oligoCHI is soluble, and alkaline aqueous media, where RA‐oligoCHI is soluble too, at SDS concentration above its critical micellar concentration. AN antibacterial activity test shows that RA‐CHIs preserve a high bacteriostatic activity toward S. aureus and E. coli in the presence of SDS both in acidic and alkaline aqueous solutions. The discovered compatibility and preservation of antibacterial activity can make promising the application of RA‐CHIs as artificial biocides for the preparation of microbiologically stable pharmaceutical hydrocolloids and cosmetic compositions containing strong anionic surfactants designed for topical applications.

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CO2-switchable emulsion with controllable stability and viscosity based on chitosans and cetyltrimethylammonium bromide

Lin,

Jiang

2024

Carbohydrate Polymers

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Study of interaction between chitosan and sodium lauryl ether sulfate

Cited by 8 publications

References 30 publications

Rheological characterisation of chitosan/sodium lauryl ether sulfate complexes

Rheological characterisation of chitosan/sodium lauryl ether sulfate complexes

Unusual Compatibility of N‐Reacetylated Oligochitosan with Sodium Dodecyl Sulfate in Aqueous Solution with a Wide Range of the Solution pH

CO2-switchable emulsion with controllable stability and viscosity based on chitosans and cetyltrimethylammonium bromide

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