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Multilamellar ceramide core-structured microvehicles with substantial skin barrier function recovery.

Kyounghee Shin1, Kun Bong Lee2, Jee-Hyun Hwang3

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This study developed novel microvehicles with a ceramide core, encapsulated by bacterial cellulose nanofibers, to effectively restore skin barrier function. These microvehicles significantly reduce water loss and improve skin structure for healthier skin.

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Area of Science:

  • Materials Science
  • Biotechnology
  • Dermatology

Background:

  • Skin barrier dysfunction is a major concern in dermatology.
  • Current treatments for skin barrier repair have limitations.
  • Advanced delivery systems are needed for effective ceramide delivery.

Purpose of the Study:

  • To develop a novel multilamellar ceramide microvehicle platform for enhanced skin barrier recovery.
  • To investigate the structural properties and stability of the microvehicles.
  • To evaluate the efficacy of the microvehicles in restoring damaged skin barrier function.

Main Methods:

  • Fabrication of bacterial cellulose nanofiber (BCNF)-enveloped ceramide-rich lipid microparticles (CerMPs) using Pickering emulsions.
  • Characterization of CerMP structure, including multilamellar arrangement and crystal growth inhibition.
  • In vitro and in vivo assessment of skin barrier function, including transepidermal water loss (TEWL) and epidermal integrity.

Main Results:

  • BCNF shell effectively prevented ceramide crystal growth, ensuring long-term stability.
  • Multilamellar structure of CerMPs allowed tuning of properties via fatty alcohol chain length.
  • Significant reduction in TEWL and restoration of epidermal structure in damaged skin models.
  • Demonstrated potential for developing advanced skin-friendly formulations.

Conclusions:

  • The BCNF-enveloped CerMP system offers a promising platform for substantial skin barrier function recovery.
  • This technology provides a practical approach for creating effective skin barrier strengthening formulations.
  • Further development could lead to innovative dermatological treatments.