Micellar and solubilizing properties of rhamnolipids

Autor:	Victor P. Arkhipov, Ruslan V. Arkhipov, Ekaterina V. Petrova, Andrei Filippov
Rok vydání:	2023
Předmět:	Fysikalisk kemi CMC aromatic hydrocarbons dynamic light scattering General Materials Science General Chemistry rhamnolipids Physical Chemistry NMR self-diffusion coefficients solubilization
Zdroj:	Magnetic Resonance in Chemistry. 61:345-355
ISSN:	1097-458X 0749-1581
DOI:	10.1002/mrc.5337
Popis:	We studied the micellar and solubilizing properties of aqueous solutions of unfractionated rhamnolipids produced by Pseudomonas aeruginosa. We used nuclear magnetic resonance (NMR) diffusometry, dynamic light scattering, and conductometry to measure the critical micelle concentration (CMC) of rhamnolipid solutions and determined the effective hydrodynamic radii of rhamnolipid monomers and micelles. Based on selective measurements of the self-diffusion coefficients of molecules, performed by NMR diffusometry, the solubilizing properties of rhamnolipids were studied depending on their concentration in solution; aromatic hydrocarbons, benzene, toluene, ethylbenzene, and para-xylene were taken as solubilizates. On the basis of the measurement results, we estimated the distribution coefficient of the solubilizate between the micellar (solubilized) and free (in the aqueous phase) states and the solubilizing capacity of rhamnolipid micelles. Licens fulltext: CC BY-NC-ND License
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db5eea05777cc9cc973df1972f766059 https://doi.org/10.1002/mrc.5337 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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