Interactions between Sodium Hyaluronate and β-Cyclodextrin as Seen by Transport Properties

Autor: Lenka Musilová, Aleš Mráček, Eduarda F. G. Azevedo, Artur J. M. Valente, Ana M. T. D. P. V. Cabral, Ana C. F. Ribeiro, Miguel A. Esteso
Rok vydání: 2023
Předmět:
Zdroj: International Journal of Molecular Sciences
Volume 24
Issue 3
Pages: 2889
International journal of molecular sciences
ISSN: 1422-0067
DOI: 10.3390/ijms24032889
Popis: Knowledge of mass transport parameters, diffusion, and viscosity of hyaluronic acid (HA) in the presence of cyclodextrins is of considerable importance for areas such as food packaging and drug delivery, among others. Despite a number of studies investigating the functionalization of HA or the corresponding sodium salt by cyclodextrins, only a few studies have reported the effect of cyclodextrins on the mass transport of HA in the presence of these oligosaccharides. Here, we report the tracer binary and ternary interdiffusion coefficients of sodium hyaluronate (NaHy) in water and aqueous β-cyclodextrin solutions. The diffusion behavior of sodium hyaluronate was dependent on the reduced viscosity of NaHy, which, in turn, presented a concave dependence on concentration, with a minimum at approximately 2.5 g dm-3. The significant decrease in the limiting diffusion coefficient of NaHy (at most 45%) at NaHy concentrations below 1 g dm-3 in the presence of β-cyclodextrin, taking water as the reference, allowed us to conclude that NaHy strongly interacted with the cyclodextrin.
Fundacao para a Ciencia e a Tecnologia (FCT) through COMPETE Programme (Operational Programme for Competitiveness) [UIDB/QUI/00313/2020]; Ministry of Education, Youth and Sports of the Czech Republic DKRVO [RP/CPS/2022/003]
Databáze: OpenAIRE
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