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Related Concept Videos

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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Biomimetic Protein Materials for Adjuvant-Free Dermal Penetration.

Marianna T P Favaro1,2, Eric Voltà-Durán1,2,3, Julieta M Sánchez1,2,4,5

  • 1Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08320 Barcelona, Spain.

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|April 15, 2026
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Summary

Researchers developed a novel biomimetic protein depot using self-assembling amyloids for effective dermal delivery. This platform, functionalized with a specific peptide, achieved deep skin penetration, offering a promising noninvasive therapeutic strategy for skin disorders.

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Area of Science:

  • Biomaterials Science
  • Dermal Drug Delivery
  • Protein Engineering

Background:

  • Current dermal delivery methods for proteins face limitations in efficacy and safety.
  • Developing noninvasive strategies for effective protein delivery through the skin is crucial for treating skin disorders.

Purpose of the Study:

  • To develop and evaluate a novel biomimetic protein depot platform for enhanced dermal delivery.
  • To assess the transdermal penetration capabilities of functionalized protein amyloids.

Main Methods:

  • Generated granular, nontoxic amyloids via Zn-mediated coordination of hexahistidine-tagged proteins.
  • Functionalized amyloids with cell-penetrating peptide R9 or tight junction modulator c-CPE.
  • Evaluated transdermal penetration in mouse models.

Main Results:

  • c-CPE-functionalized protein amyloids demonstrated consistent distribution through the dermis into hypodermal layers.
  • Plain and R9-functionalized granules showed restricted skin permeation.
  • The c-CPE functionalization enhanced permeability without auxiliary adjuvants, lipids, or invasive methods.

Conclusions:

  • Self-assembled protein amyloids represent a promising and adaptable biomaterial class for dermal protein delivery.
  • The c-CPE-functionalized system holds significant translational potential for noninvasive management of cutaneous conditions.