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Mannose-based surfactant as biofunctional nanoemulsion stabilizer.

Pablo G Argudo1, Lea Spitzer2, Emmanuel Ibarboure1

  • 1Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, 16 Avenue Pey-Berland, 33600 Pessac, France.

Colloids and Surfaces. B, Biointerfaces
|September 29, 2022
PubMed
Summary
This summary is machine-generated.

A novel mannose-based surfactant derived from natural resources effectively creates oil-in-water nanoemulsions. This biocompatible surfactant retains biological properties, showing potential for nanocarrier applications.

Keywords:
BiorecognitionConcanavalin AMannoseNanoemulsionParticle size distribution

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Area of Science:

  • Biomaterials Science
  • Colloid and Surface Chemistry
  • Green Chemistry

Background:

  • Petrochemical-based surfactants face feedstock depletion and environmental concerns.
  • Bio-based surfactants offer unique properties and improved performance in colloidal systems like emulsions.
  • Developing sustainable amphiphiles from natural resources is crucial for environmental and economic reasons.

Purpose of the Study:

  • To investigate the emulsification properties of a synthesized biocompatible mannose-based surfactant.
  • To evaluate the surfactant's performance in forming oil-in-water (O/W) nanoemulsions with various natural oils and aqueous phases.
  • To assess the retention of biological properties in the mannose groups of the surfactant within the nanoemulsions.

Main Methods:

  • Synthesis of a biocompatible mannose-based surfactant.
  • Evaluation of emulsification in the presence of castor, sunflower, olive, and soybean oils.
  • Testing with pure water and phosphate-buffered saline as aqueous phases.
  • Characterization of O/W nanoemulsions formed using a low-energy preparation protocol.
  • In vitro assessment of mannose-concanavalin A binding to confirm biorecognition properties.

Main Results:

  • The mannose-based surfactant demonstrated effective emulsification for O/W nanoemulsions across all tested natural oils and aqueous phases.
  • Successful nanoemulsion formation was achieved using low surfactant concentrations and a low-energy preparation method.
  • The mannose groups on the surfactant retained their native biological activity, confirmed by specific binding to concanavalin A.
  • The designed nanoemulsions exhibited inherent biorecognition properties.

Conclusions:

  • The synthesized mannose-based surfactant is a promising bio-based alternative to petrochemical surfactants for creating stable O/W nanoemulsions.
  • The surfactant's ability to maintain biological functionality opens avenues for its use in advanced nanocarrier systems.
  • This research highlights the potential of utilizing natural resources for developing functional and sustainable amphiphilic molecules.