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Related Experiment Video

Updated: Jan 21, 2026

Engineered 3D Silk-collagen-based Model of Polarized Neural Tissue

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Published on: October 23, 2015

Transdermal Silk-Recombinant Collagen Nanocomplexes with Synergistic Bioactivity.

Ying Guo¹, Huaxiang Yang¹, Qiyuan Song¹

¹The Fourth Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Medical College of Soochow University, Soochow University, Suzhou 215000, P. R. China.

ACS Biomaterials Science & Engineering

|January 20, 2026

Summary

Silk nanofibers (SNF) enhance the transdermal delivery of hydrophilic macromolecules like recombinant collagen XVII (RCL). These SNF-RCL nanocomplexes improve skin barrier repair and promote tissue healing in photodamaged skin.

Keywords:

nanocomplexes recombinant collagen silk skin barrier transdermal

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Area of Science:

Biomaterials Science
Regenerative Medicine
Dermatology

Background:

Hydrophilic macromolecules offer therapeutic potential in regenerative medicine and cosmetics.
Their application is limited by poor transdermal penetration.
Silk nanofibers (SNF) exhibit promising transdermal capabilities.

Purpose of the Study:

To develop a transdermal delivery system for hydrophilic macromolecules using SNF.
To investigate the formation and properties of SNF-recombinant collagen XVII (RCL) nanocomplexes.
To evaluate the efficacy of these nanocomplexes in skin repair.

Main Methods:

Assembling recombinant collagen XVII (RCL) with silk nanofibers (SNF) to create nanocomplexes.
Controlling nanostructure and size by varying the SNF:RCL ratio.
Assessing transdermal capacity, skin barrier repair, and bioactivity in vitro and in vivo.
Evaluating topical application of nanocomplex gels on photodamaged skin.

Main Results:

SNF-RCL nanocomplexes exhibited controllable nanostructures and sizes.
Optimal SNF:RCL ratios yielded significant transdermal capacity and skin barrier repair.
Synergistic bioactivity was observed in SNF-RCL nanocomplexes.
In vivo studies showed enhanced tissue healing of photodamaged skin with nanocomplex gels.

Conclusions:

SNF can form effective transdermal delivery systems for hydrophilic macromolecules without compromising bioactivity.
SNF-RCL nanocomplexes demonstrate potential for treating skin conditions requiring enhanced delivery.
This approach offers a promising strategy for developing advanced transdermal therapies for skin diseases.