EFFECT OF CHITOSAN AS ACTIVE SUBSTANCE IN HYDROGEL ON THE DIFFUSION OF DYES
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU151907" target="_blank" >RIV/00216305:26310/23:PU151907 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.37904/nanocon.2023.4788" target="_blank" >http://dx.doi.org/10.37904/nanocon.2023.4788</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/nanocon.2023.4788" target="_blank" >10.37904/nanocon.2023.4788</a>
Alternative languages
Result language
angličtina
Original language name
EFFECT OF CHITOSAN AS ACTIVE SUBSTANCE IN HYDROGEL ON THE DIFFUSION OF DYES
Original language description
Cation active chitosan was studied as the active substance incorporated into an inert hydrogel to affect its transport and barrier properties. The inert hydrogel was based on thermo-reversible agarose which can be prepared in defined shape and size required for the mathematical description of studied transport. Amido Black 10B was chosen as a model anionic dye able to interact with chitosan. Agarose hydrogels with the contents of chitosan equal to 2, 5, and 10.g per gram of hydrogel were prepared. Diffusion experiments were realized at three different temperatures (30, 40, and 50 degrees C). Transport experiments in hydrogels provided the values of effective diffusion coefficients involving the effect of interactions between chitosan and dye under given conditions. The incorporation of chitosan into inert hydrogel resulted in the decrease in the dye diffusivity. An apparent equilibrium constant as the ratio between immobilized and free movable dye particles was determined on the basis of the comparison of dye diffusivities in hydrogels enriched by chitosan with values obtained for pure agarose hydrogel. The increase in temperature enhanced diffusion rate as expected. The increase in diffusion coefficients with increasing temperature showed on the predominant influence of higher mobility in comparison with temperature dependence of reaction rate.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
21000 - Nano-technology
Result continuities
Project
<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
15th International Conference on Nanomaterials - Research & Application
ISBN
978-80-88365-15-0
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
177-182
Publisher name
TANGER LTD
Place of publication
SLEZSKA
Event location
Brno, Czech Republic
Event date
Oct 18, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001234125400029