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Result

Ultrasonic study of hyaluronan interactions with Septonex – a pharmaceutical cationic surfactant

Interactions between hyaluronan and the cationic surfactant Septonex were regions were observed. Hyaluronan-Septonex aggregates were generally less compressible than Septonex monomers or micelles and their formation in wate...

Physical chemistry

  • 2019
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  • Jimp
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  • Link
Result

Fluorescence study of aggregation behaviour of cationic surfactant carbethopendecinium bromide and its comparison with cetyltrimethylammonium bromide

bromide (Septonex) and cetyltrimethylammonium bromide (CTAB) in aqueous solution as a probe and cetylpyridinium chloride as a quencher. The obtained results for Septonex were compared with the aggregation parameters of CTAB. Genera...

Physical chemistry

  • 2019
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  • Jimp
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  • Link
Result

Hyaluronic acid as a modulator of the cytotoxic effects of cationic surfactants

CTAB (cetyltrimethylammonium bromide) and Septonex (carbethoxypendecinium (bacteria, fungi, mammal cells, etc.). Colloidal complexes of CTAB or Septonex or Septonex-HyA complexes reduce (in different rate according to the u...

CF - Fyzikální chemie a teoretická chemie

  • 2015
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  • Jx
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Result

Hyaluronic Acid, a Useful Tool for Modulation of Cytotoxic Effects of Cationic Surfactants

CTAB and Septonex are cationic surfactants known for harmful effects on different cell types (bacteria, fungi, mammal cells, etc.). Colloidal complexes of CTAB or Septonex with oppositely charged hyaluronic acid were prepared primar...

CF - Fyzikální chemie a teoretická chemie

  • 2014
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  • O
Result

Aggregation of Hyaluronan and Surfactant Studied by Fluorescence Cross-Correlation Spectroscopy

Hyaluronan and Septonex aggregation was studied by means of fluorescence correlation spectroscopy with fluorescence probes Atto 655, Nile red and Rhodamine 6g. FCS determined changes in diffusion coefficient of Nile red only when hyaluronan ...

CF - Fyzikální chemie a teoretická chemie

  • 2014
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  • O
Result

Hyaluronic acid in complexes with surfactants: The efficient tool for reduction of the cytotoxic effect of surfactants on human cell types

tThe cationic surfactants carbethoxypendecinium bromide (Septonex and Septonex-HyA complexes were found to reduce the cytotoxicity induced by surfactants osteoblasts and fibroblasts were more sensitive to Septonex. Moreover...

Polymer science

  • 2017
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  • Jimp
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  • Link
Result

Determination of carbethopendecinium bromide in eye drops by capillary electrophoresis with capacitively coupled contactless conductivity detection

Antiseptic agent carbethopendecinium bromide (septonex) was determined by capillary electrophoresis with capacitively coupled contactless conductivity detection. The method was successfully applied to the assay of carbethopendecinium bromide...

CB - Analytická chemie, separace

  • 2011
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  • Jx
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  • Link
Result

The effect of pH and multivalent ions on the mechanical properties of gels with micellar nanodomains

– Septonex). Using the method of rheology, the effect of pH and addition of multivalent ions to the mixture of Hya-Septonex, was studied. Samples underwent both oscillatory and flow measurements. Generally, pH suppressed the elasti...

Physical chemistry

  • 2018
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  • O
Result

Effect of Surfactants and Ionic Strength on Dissociation of Hydrochlorides of Phenothiazine Derivatives

A study of the effect of the anionic surfactant dodecyl sulfate, the cationic surfactant carbethoxypentadecyl trimethyl ammonium bromide (Septonex), nonionic surfactant p-octyl phenyl polyoxyethylene (Triton X-100), and a strong electrolyte ...

CB - Analytická chemie, separace

  • 2009
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  • Jx
Result

Hyaluronan interactions with cationic surfactants-Insights from fluorescence resonance energy transfer and anisotropy techniques

- Cetyltrimethylammonium bromide (CTAB) and Septonex. In pure micellar solutions, the same values of the probe pair were lower for Septonex micelles than in the case of CTAB. This was attributed to steric effects of the carbethoxy ...

Physical chemistry

  • 2022
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  • Jimp
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