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Related Experiment Video

Updated: Mar 7, 2026

Manufacture and Drug Delivery Applications of Silk Nanoparticles
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Curcumin-functionalized silk biomaterials for anti-aging utility.

Lei Yang1, Zhaozhu Zheng1, Cheng Qian2

  • 1National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China.

Journal of Colloid and Interface Science
|February 20, 2017
PubMed
Summary
This summary is machine-generated.

Silk fibroin encapsulation enhances curcumin's anti-aging properties. Silk-associated curcumin, in films and nanoparticles, superiorly retards cell aging compared to free curcumin, preserving antioxidant activity for biomedical use.

Keywords:
Anti-agingCurcuminRat bone marrow mesenchymal stem cells (rBMSCs)Silk fibroin

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Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Natural Product Chemistry

Background:

  • Curcumin, a natural antioxidant from turmeric, has anti-aging potential but suffers from poor stability and solubility.
  • Silk fibroin has previously preserved curcumin's antioxidant activity, promoting stem cell differentiation.
  • Encapsulating curcumin in silk fibroin aims to improve its stability and efficacy for anti-aging applications.

Purpose of the Study:

  • To compare the anti-aging effects of curcumin encapsulated in silk fibroin films (silk/cur films) and nanoparticles (silk/cur NPs) against free curcumin (FC).
  • To elucidate the mechanism behind the anti-aging properties of silk-associated curcumin.
  • To optimize silk-curcumin formulations for future biomedical applications.

Main Methods:

  • Curcumin was encapsulated into silk fibroin films and nanoparticles.
  • Materials were characterized using SEM, FTIR, and DSC to confirm structure and stability.
  • Rat bone marrow mesenchymal stem cells (rBMSCs) were cultured with FC, silk/cur film, and silk/cur NP to assess cell proliferation and aging markers (P53, P16, HSP70, β-Galactosidase activity).

Main Results:

  • SEM, FTIR, and DSC confirmed stable beta-sheet structures in silk/cur materials, indicating strong curcumin binding to silk fibroin.
  • Slow release of active curcumin was observed from the silk fibroin matrices.
  • Both silk-associated curcumin formulations (NP and film) and FC retarded cell aging, with silk-associated curcumin demonstrating superior efficacy over FC.

Conclusions:

  • Silk fibroin encapsulation effectively preserves curcumin's antioxidant activity and enhances its anti-aging effects.
  • Silk-associated curcumin, particularly in nanoparticle and film forms, offers a promising strategy for anti-aging therapies.
  • The strong binding of curcumin to silk fibroin's beta-sheet domains facilitates slow release and sustained activity, improving biomedical application potential.