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Effect of monohydric alcohols on structural properties of macromolecular solutions

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Il Nuovo Cimento D

Summary

We report on the effects of monohydric alcohols on the thixotropic properties of a 1% (by weight) BSA solution. The presence of alcohols in the solution medium, even in very small amounts, weakens the structure responsible for the thixotropic properties: this effect increases with increasing alcohol concentration and alkyl group size. We also present indirect evidence relating the observed effects to the alteration, in the presence of alcohols, of protein-solvent hydrophobic interactions.

Riassunto

Si riportano gli effetti di alcoli monoidrici sulle proprietà tixotropiche di una soluzione di BSA (1% in peso). La presenza degli alcoli nella soluzione, anche a piccole concentrazioni, indebolisce la struttura che origina le proprietà tixotropiche. Tale effetto cresce al crescere della concentrazione alcoolica e con le dimensioni dei gruppi alchilici. Si presentano altresí evidenze indirette che collegano gli effetti osservati con un’alterazione delle interazioni idrofobiche causate dagli alcoli.

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Giordano, R., Wanderlingh, F., Cordone, L. et al. Effect of monohydric alcohols on structural properties of macromolecular solutions. Il Nuovo Cimento D 2, 47–54 (1983). https://doi.org/10.1007/BF02451229

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  • DOI: https://doi.org/10.1007/BF02451229

PACS. 87.15

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