Biomimetic synthesis and antibacterial characteristics of magnesium oxide-germanium dioxide nanocomposite powders

C. P. Avanzato, J. M. Follieri, I. A. Banerjee, K. R. Fath

Research output: Contribution to journalArticle

17 Scopus citations


The efficiency of growth of nanocrystalline magnesium oxide- germanium dioxide nanocomposite powders at room temperature was investigated in the presence of the amino acids histidine, aspartic acid, and the biopolymer polyL-lysine under varying conditions. It was observed that of the three, poly-L-lysine and histidine were more efficient and formed higher yields of the products. The growth of the nanocomposties was found to be pH-sensitive as indicated by zeta potential as well as TEM, and dynamic light scattering analyses. Furthermore, the nanocomposite powders were found to have significant antibacterial activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria.

Original languageEnglish (US)
Pages (from-to)897-910
Number of pages14
JournalJournal of Composite Materials
Issue number8
StatePublished - Apr 2009
Externally publishedYes



  • Amino acids.
  • Germania
  • Magnesium oxide
  • Nanocomposites

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

Cite this