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Applied Microbiology and Biotechnology

, Volume 90, Issue 5, pp 1609–1624 | Cite as

Mechanistic aspects in the biogenic synthesis of extracellular metal nanoparticles by peptides, bacteria, fungi, and plants

  • Nelson DuránEmail author
  • Priscyla D. Marcato
  • Marcela Durán
  • Alka Yadav
  • Aniket Gade
  • Mahendra Rai
Mini-Review

Abstract

Metal nanoparticles have been studied and applied in many areas including the biomedical, agricultural, electronic fields, etc. Several products of colloidal silver are already on the market. Research on new, eco-friendly and cheaper methods has been initiated. Biological production of metal nanoparticles has been studied by many researchers due to the convenience of the method that produces small particles stabilized by protein. However, the mechanism involved in this production has not yet been elucidated although hypothetical mechanisms have been proposed in the literature. Thus, this review discusses the various mechanisms provided for the biological synthesis of metal nanoparticles by peptides, bacteria, fungi, and plants. One thing that is clear is that the mechanistic aspects in some of the biological systems need more detailed studies.

Keywords

Silver Nanobiotechnology Nanoparticles Biogenic Mechanisms 

Notes

Acknowledgments

Support from FAPESP, CNPq, Brazilian Network in Nanocosmetics (MCT/CNPq), and the Binational Exchange Program Indo-Brazil (SCI/CNPQ) are acknowledged.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Nelson Durán
    • 1
    • 2
    Email author
  • Priscyla D. Marcato
    • 1
  • Marcela Durán
    • 1
  • Alka Yadav
    • 3
  • Aniket Gade
    • 3
  • Mahendra Rai
    • 3
  1. 1.Chemistry Institute, Biological Chemistry LaboratoryUniversidade Estadual de CampinasCampinasBrazil
  2. 2.Center of Natural and Human Sciences, Department of Biochemistry and BiophysicsUniversidade Federal do ABCSanto AndréBrazil
  3. 3.Department of BiotechnologySGB Amravati UniversityAmravatiIndia

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