Detail publikace

High-resolution ultrasonic spectroscopy for studying of polyelectrolytes and surfactants

KARGEROVÁ, A. PEKAŘ, M.

Originální název

High-resolution ultrasonic spectroscopy for studying of polyelectrolytes and surfactants

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

Hyaluronan is a well-known biopolymer synthesized in various organisms including the human body. It is formed by a repeated basic dimeric unit composed of glucuronic acid and N-acetyl-glucosamine. Due to its biological origin, biocompatibility, non-immunogenicity, and biodegradability, hyaluronan has found various applications in the fields of cosmetics and medicine. Due to the presence of carboxylic groups in its backbone, hyaluronan behaves in aqueous environments as a polyelectrolyte. At physiological pH values, hyaluronan possesses negative charge and is thus capable of attractive electrostatic interactions with positively charged partners. Thus, interactions between hyaluronan and cationic surfactants have been intensively studied as a specific example of a broader class of polyelectrolyte-surfactant interactions. The binding of surfactant to hyaluronan was detected for surfactants with an alkyl chain consisting of at least ten carbon atoms (1, 2). Interactions between hyaluronan and the cationic surfactant Septonex were studied using high resolution ultrasound spectroscopy. Four different interaction regions were identified in aqueous solution in a narrow interval of surfactant concentrations. In contrast, in 0.15 mol/L NaCl solution, essentially only two principal regions were observed. Hyaluronan-Septonex aggregates were generally less compressible than Septonex monomers or micelles and their formation in water was not appreciably affected by hyaluronan molecular weight.

Klíčová slova

Polyelectrolytes, surfactants, high resolution ultrasonic spectroscopy

Autoři

KARGEROVÁ, A.; PEKAŘ, M.

Vydáno

5. 10. 2018

Nakladatel

Brno University of Technology, Faculty of Chemistry

Místo

Brno

Strany od

12

Strany do

12

Strany počet

32

URL

BibTex

@misc{BUT155768,
  author="Andrea {Hurčíková} and Miloslav {Pekař}",
  title="High-resolution ultrasonic spectroscopy for studying of polyelectrolytes and surfactants",
  year="2018",
  pages="12--12",
  publisher="Brno University of Technology, Faculty of Chemistry",
  address="Brno",
  url="http://www.hrus2018.com//",
  note="abstract"
}