Molecularly imprinted polymers for alpha-tocopherol delivery

Drug Deliv. 2008 May;15(4):253-8. doi: 10.1080/10717540802006724.

Abstract

Biomedical applications of antioxidants have increased dramatically since the link between human diseases and oxidative stress was established. This paper focuses on alpha -tocopherol and on the possibility of employing molecularly imprinted polymers as a controlled release device for alpha-tocopherol in gastrointestinal simulating fluids. Polymers were synthesized using methacrylic acid as functional monomer and ethylene glycol dimethacrylate as cross-linker. Considerable differences in recognition characteristics between imprinted and non-imprinted polymers, both in organic and in aqueous media, were observed. Imprinted polymers bound much more alpha-tocopherol and showed a controlled/sustained drug release capacity in gastrointestinal simulating fluids.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antioxidants / chemistry
  • Antioxidants / pharmacokinetics*
  • Cross-Linking Reagents / chemistry
  • Delayed-Action Preparations
  • Drug Carriers / chemistry
  • Drug Delivery Systems
  • Gastric Juice / metabolism
  • Intestinal Secretions / metabolism
  • Methacrylates / chemistry
  • Molecular Imprinting*
  • Polymers / chemistry*
  • alpha-Tocopherol / chemistry
  • alpha-Tocopherol / pharmacokinetics*

Substances

  • Antioxidants
  • Cross-Linking Reagents
  • Delayed-Action Preparations
  • Drug Carriers
  • Methacrylates
  • Polymers
  • methacrylic acid
  • ethylene dimethacrylate
  • alpha-Tocopherol