From composite molecular structures to a multiplicity of supramolecular aggregates: The role of intermolecular interactions in biosurfactant self-assembly

Russo Krauss, Irene; Esposito, Rodolfo; Paduano, Luigi; D'Errico, Gerardino

doi:10.1016/j.cocis.2024.101792

Current Opinion in Colloid & Interface Science

2024

DOI: 10.1016/j.cocis.2024.101792

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From composite molecular structures to a multiplicity of supramolecular aggregates: The role of intermolecular interactions in biosurfactant self-assembly

Irene Russo Krauss,

Rodolfo Esposito,

Luigi Paduano

et al.

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2024

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Cited by 3 publications

References 88 publications

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Foams based on biosurfactant mixtures. Part II. Influence of mixture composition on foam stability

Krzan,

Kudłacik-Kramarczyk,

Drabczyk

et al. 2024

Current Opinion in Colloid & Interface Science

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Foams based on biosurfactant mixtures. Part II. Influence of mixture composition on foam stability

Krzan,

Kudłacik-Kramarczyk,

Drabczyk

et al. 2024

Current Opinion in Colloid & Interface Science

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Synthetic approaches of carbohydrate based self-assembling systems

Wang,

Chen,

Aryal

et al. 2024

Org. Biomol. Chem.

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Surface and Aggregation Properties of Rhamnolipids in Water–Bioethanol Mixtures: A Step toward Green Formulation Design

Esposito,

Taddeo,

Russo

et al. 2024

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Water–ethanol mixtures are largely exploited for many different applications, from industrial processes to pharmaceutical formulations. Surfactants are often added to tune their interfacial properties. Sustainability concerns require redesigning such blends to minimize their environmental impact. A successful approach is to replace synthetic oil-based components with affordable unpurified bio-derived alternatives. In this respect, we have characterized aqueous mixtures of bioethanol, obtained by the fermentation of algae, and rhamnolipids, biosurfactants of microbial origin. The physico-chemical characterization of water–bioethanol binary mixtures in terms of refractive index, density, viscosity, and surface tension indicates that bioethanol behaves like pure ethanol with negligible effects of impurities. Analysis of tensiometric titrations shows that, at bioethanol contents higher than 20–30% bioethanol mass percent, rhamnolipid aggregation is impaired, whereas surface adsorption at the water–air interface remains poorly affected. Overall, bio-derived components can be proposed as a promising alternative to oil-derived chemicals in eco-sustainable formulations.

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From composite molecular structures to a multiplicity of supramolecular aggregates: The role of intermolecular interactions in biosurfactant self-assembly

Cited by 3 publications

References 88 publications

Foams based on biosurfactant mixtures. Part II. Influence of mixture composition on foam stability

Foams based on biosurfactant mixtures. Part II. Influence of mixture composition on foam stability

Synthetic approaches of carbohydrate based self-assembling systems

Surface and Aggregation Properties of Rhamnolipids in Water–Bioethanol Mixtures: A Step toward Green Formulation Design

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