Pregled bibliografske jedinice broj: 818474
Dielectric relaxation in Hylarunic acid sodium salt
Dielectric relaxation in Hylarunic acid sodium salt // 2nd Christmas biophysics workshop / Rudi Podgornik (ur.).
Bled, 2007. (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 818474 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Dielectric relaxation in Hylarunic acid sodium salt
Autori
Dolanski Babić, Sanja ; Vuletić, Tomislav ; Tomić, Silvia
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
2nd Christmas biophysics workshop
/ Rudi Podgornik - Bled, 2007
Skup
2nd Christmas biophysics workshop
Mjesto i datum
Bled, Slovenija, 15.12.2007. - 16.12.2007
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Hylarunic acid; dielectric relaxation
Sažetak
Structural properties of Na-HA aqueous solutions can be quantified using dielectric spectroscopy in the frequency range 100 Hz–100 MHz. Two relaxation modes are typically detected that can be attributed to diffusive motion of polyion counterions. The overall study as a function of polyion length, concentration and added salt concentration demonstrates that the motion of polyion counterions detected at MHz frequencies probes collective properties, whereas the motion at kHz range probes single-chain properties of polyelectrolytes. Fundamental length scales found to characterize the polyelectrolyte structure differ for the dilute and semidilute regime and also depend on the strength of electrostatic interactions and the flexibility.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
