The interactions of dextran with surfactant SDS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU131251" target="_blank" >RIV/00216305:26310/18:PU131251 - isvavai.cz</a>
Result on the web
<a href="http://www.ultrasonic2018.com/" target="_blank" >http://www.ultrasonic2018.com/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The interactions of dextran with surfactant SDS
Original language description
Dextran is a homopolysaccharide made of many glucose molecules, produced by enzymatic conversion to sucrose as a bacterial product [1]. Because of positive charged dextran hydrochloride (DEAE) and negative charged sodium dodecyl sulphate (SDS), we can measure interactions between them. Added surfactant reacts with hydrophobic groups of the homopolysaccharide which leads to micelles formation. Micelles can be determined using high resolution ultrasonic spectroscopy (HR-US) which employs sound waves during the measurement. Before characterization of interactions between DEAE and surfactant SDS, properties of DEAE solutions of various concentrations in different solvents (water and 0.15 mmol/l NaCl) were investigated. The ultrasonic velocity was measured by HR-US in a kinetic mode at 25 °C. The ultrasonic velocity increases linearly with the increasing concentration of DEAE. Subsequently, interactions of DEAE with SDS were examined to determine the critical aggregation and critical micelle concentrat
Czech name
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Czech description
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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)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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