Fabrication of ellagic acid incorporated self-assembled peptide microtubes and their applications

Colloids Surf B Biointerfaces. 2012 Jun 15:95:154-61. doi: 10.1016/j.colsurfb.2012.02.031. Epub 2012 Mar 1.

Abstract

Ellagic acid (EA), a plant polyphenol known for its wide-range of health benefits was encapsulated within self-assembled threonine based peptide microtubes. The microtubes were assembled using the synthesized precursor bolaamphiphile bis(N-α-amido threonine)-1,5-pentane dicarboxylate. The self-assembly of the microstructures was probed at varying pH. In general, tubular formations were observed at a pH range of 4-6. The formed microtubes were then utilized for fabrication with EA. We probed the ability of the microtubes as drug release vehicles for EA as well as for antibacterial applications. It was found that the release of EA was both pH and concentration dependent. The biocompatibility as well as cytotoxicity of the EA-fabricated microtubes was examined in the presence of mammalian normal rat kidney (NRK) cells. Finally the antibacterial effects of the EA incorporated peptide microtubes was examined against Escherichia coli and Staphylococcus aureus.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Bacterial Agents / chemical synthesis
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology*
  • Biocompatible Materials / chemical synthesis
  • Biocompatible Materials / chemistry
  • Biocompatible Materials / pharmacology*
  • Cell Line
  • Cell Proliferation
  • Ellagic Acid / chemistry
  • Ellagic Acid / pharmacology*
  • Escherichia coli / drug effects*
  • Hydrogen-Ion Concentration
  • Kidney / cytology
  • Microbial Sensitivity Tests
  • Microtubules / chemistry*
  • Particle Size
  • Peptides / chemical synthesis
  • Peptides / chemistry
  • Peptides / pharmacology*
  • Rats
  • Staphylococcus aureus / drug effects*
  • Surface Properties

Substances

  • Anti-Bacterial Agents
  • Biocompatible Materials
  • Peptides
  • Ellagic Acid