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Biosynthesis of Silver Nanoparticles

Published online by Cambridge University Press:  15 February 2011

Rajesh R. Naik ,
Sarah J. Stringer ,
Jay M. Johnson  and
Morley O. Stone
Rajesh R. Naik
Affiliation:
Air Force Research Laboratory, Materials and Manufacturing Directorate, Biotechnology Group, Wright-Patterson AFB, Dayton, OH 45433.
Sarah J. Stringer
Affiliation:
Air Force Research Laboratory, Materials and Manufacturing Directorate, Biotechnology Group, Wright-Patterson AFB, Dayton, OH 45433.
Jay M. Johnson
Affiliation:
University of Dayton Research Institute, Dayton OH 45469. Email: [email protected]
Morley O. Stone
Affiliation:
Air Force Research Laboratory, Materials and Manufacturing Directorate, Biotechnology Group, Wright-Patterson AFB, Dayton, OH 45433.
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Abstract

The use of biomolecules in the creation of inorganic materials offers an alternative to conventional synthetic methods. Biomolecules are currently used to control nucleation and growth of inorganic nanoparticles. Here we demonstrate the formation of silver nanoparticles in the presence of silver-binding peptides. Examination of the silver nanoparticles by transmission electron microscopy revealed a variety of crystal morphologies such as hexagons, triangles and spheres. The peptides serve to reduce the silver ions in the aqueous solution to metallic silver as well as control crystal growth. The nucleation property of peptides can be used as tool for bottom-up fabrication.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 774: Symposium O – Materials Inspired by Biology , 2003 , O8.3
Copyright
Copyright © Materials Research Society 2003

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