Nanoparticles formed by complexation of poly-γ-glutamic acid and lead ions

M. Bodnar, A. L. Kjøniksen, J. F. Hartmann, L. Daroczi, B. Nyström, J. Borbely

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The present investigation describes the preparation and characterization of novel biodegradable nanoparticles based on complexation of poly-gamma-glutamic acid (y-PGA) with bivalent lead ions. The prepared nanosystems were stable in aqueous media at low pH, neutral and mild alkaline conditions. The solubility and size of these nanoparticles in the dried and swollen states will be described and discussed. The correlation of size of particles, pH of the solutions, concentration and the ratio of compound polyelectrolytes have been studied. It was found, that the size of individual particles was in the range of 40-100 nm measured by TEM. The low and high pH values in mixtures with high concentrations of γ-PGA and Pb2+ ions favored the growth of large complexes. The y-PGA nanoparticles, which are from a biodegradable biomaterial with high flocculating and heavy metal binding activity, may be useful for various water treatment applications in aqueous media.

Original languageEnglish
Title of host publication2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Pages309-312
Number of pages4
Publication statusPublished - Aug 24 2007
Event2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007 - Santa Clara, CA, United States
Duration: May 20 2007May 24 2007

Publication series

Name2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Volume1

Other

Other2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007
CountryUnited States
CitySanta Clara, CA
Period5/20/075/24/07

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Keywords

  • Complexation
  • Lead binding
  • Nanoparticles
  • Poly-γ-glutamic acid

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Bodnar, M., Kjøniksen, A. L., Hartmann, J. F., Daroczi, L., Nyström, B., & Borbely, J. (2007). Nanoparticles formed by complexation of poly-γ-glutamic acid and lead ions. In 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings (pp. 309-312). (2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings; Vol. 1).