Detail publikace

Dielektrická spektroskopie kyseliny hyaluronové a jejích solí

LIEDERMANN, K. HOLCMAN, V. EL-FAKHRI, S.

Originální název

Dielectric Spectroscopy of Hyaluronic Acid and its Salts

Český název

Dielektrická spektroskopie kyseliny hyaluronové a jejích solí

Anglický název

Dielectric Spectroscopy of Hyaluronic Acid and its Salts

Typ

článek ve sborníku

Jazyk

en

Originální abstrakt

Hyaluronic acid is a high-molecular-weight polysaccharide found mostly in a human body and widely used in biomedical applications. Our study was focused on its electrical properties in the temperature range 25 K - 325 K and in the frequency range 100 Hz - 1 MHz. Three conductivity regions were found: DC conductivity, universal dielectric response and the super linear power law with the observed frequency dependence of conductivity being 1.06. Activation energy of the DC conductivity process was established to be 5.4 MJ/kmol. ISBN 978-4-88686-006-4

Český abstrakt

Kyselina hyaluronová je vysokomolekulární polysacharid, který se většinou nachází v lidském těle a široce se používá v biomedicínských aplikacích. Naše studium se soustředilo na elektrické vlastnosti kyseliny hyaluronové v teplotním intervalu 25 K - 325 K a ve frekvenčním intervalu 100 Hz - 1 MHz. Byly identifikovány tři rozdílné mechanismy elektrické vodivosti: stejnosměrná vodivost, univerzální dielektrická odezva a superlineární mocninná závislost, přičemž pozorovaná frekvenční závislost vodivost odpovídal funkci f^1.06. Aktivační energie stejnosměrného vodivostního mechanismu činila 5.4 MJ/kmol. International Conference on Electrical Insulating Materials (ISEIM2008),

Anglický abstrakt

Hyaluronic acid is a high-molecular-weight polysaccharide found mostly in a human body and widely used in biomedical applications. Our study was focused on its electrical properties in the temperature range 25 K - 325 K and in the frequency range 100 Hz - 1 MHz. Three conductivity regions were found: DC conductivity, universal dielectric response and the super linear power law with the observed frequency dependence of conductivity being 1.06. Activation energy of the DC conductivity process was established to be 5.4 MJ/kmol. ISBN 978-4-88686-006-4

Klíčová slova

kyselina hyaluronová, dielektrická spektroskopie, relaxace

Rok RIV

2008

Vydáno

07.09.2008

Nakladatel

IEE Japan

Místo

Yokkaichi, Japonsko

ISBN

978-4-88686-006-4

Kniha

Proceedings of 2008 International Symposium on Electrical Insulating Materials

Číslo edice

1

Strany od

234

Strany do

237

Strany počet

4

BibTex


@inproceedings{BUT27468,
  author="Karel {Liedermann} and Vladimír {Holcman} and Salem Omar Saeid {El-Fakhri}",
  title="Dielectric Spectroscopy of Hyaluronic Acid and its Salts",
  annote="Hyaluronic acid is a high-molecular-weight polysaccharide found mostly in a human body and widely used in biomedical applications. Our study was focused on its electrical properties in the temperature range 25 K - 325 K and in the frequency range 100 Hz - 1 MHz. Three conductivity regions were found: DC conductivity, universal dielectric response and the super linear power law with the observed frequency dependence of conductivity being 1.06. Activation energy of the DC conductivity process was established to be 5.4 MJ/kmol.

ISBN 978-4-88686-006-4",
  address="IEE Japan",
  booktitle="Proceedings of 2008 International Symposium on Electrical Insulating Materials",
  chapter="27468",
  howpublished="online",
  institution="IEE Japan",
  year="2008",
  month="september",
  pages="234--237",
  publisher="IEE Japan",
  type="conference paper"
}