Vitamin-loaded electrospun cellulose acetate nanofiber mats as transdermal and dermal therapeutic agents of vitamin A acid and vitamin E

Eur J Pharm Biopharm. 2007 Sep;67(2):387-97. doi: 10.1016/j.ejpb.2007.03.018. Epub 2007 Mar 31.

Abstract

The present contribution reports the use of mats of electrospun cellulose acetate (CA; acetyl content=39.8%; Mw=30,000 Da) nanofibers as carriers for delivery of the model vitamins, all-trans retinoic acid or vitamin A acid (Retin-A) and alpha-tocopherol or vitamin E (Vit-E). The amounts of Vit-E and Retin-A loaded in the base CA solution [17% w/v in 2:1 v/v acetone/N,N-dimethylacetamide (DMAc)] were 5 and 0.5 wt% (based on the weight of CA), respectively. Cross-sectionally round and smooth fibers were obtained. The average diameters of these fibers ranged between 247 and 265 nm. The total immersion of the vitamin-loaded as-spun CA fiber mats in the acetate buffer solutions containing either 0.5 vol % Tween 80 or 0.5 vol % Tween 80 and 10 vol % methanol was used to arrive at the cumulative release of the vitamins from the fiber mat samples. The same was also conducted on the vitamin-loaded solution-cast CA films for comparison. In most cases, the vitamin-loaded as-spun fiber mats exhibited a gradual and monotonous increase in the cumulative release of the vitamins over the test periods (i.e., 24 h for Vit-E-loaded samples and 6 h for Retin-A-loaded ones), while the corresponding as-cast films exhibited a burst release of the vitamins.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetates / chemistry
  • Administration, Cutaneous*
  • Buffers
  • Cellulose / analogs & derivatives*
  • Cellulose / chemistry
  • Chemistry, Pharmaceutical / methods*
  • Drug Administration Routes
  • Electrochemistry / methods
  • Microscopy, Electron, Scanning
  • Models, Chemical
  • Nanoparticles / chemistry*
  • Skin / drug effects*
  • Stress, Mechanical
  • Tretinoin / chemistry*
  • Vitamin E / chemistry*
  • Vitamins / chemistry

Substances

  • Acetates
  • Buffers
  • Vitamins
  • Vitamin E
  • acetylcellulose
  • Tretinoin
  • Cellulose