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Polyaminoacid-Induced Growth of Metal Nanoparticles on Layer-by-Layer Templates
- Source :
- DTIC
- Publication Year :
- 2008
-
Abstract
- We report on preparation of redox-active nanoscale layer-by-layer (LbL) films with polyaminoacid-decorated surfaces that serve for both nucleation and growth of uniformly distributed gold nanoparticles at ambient conditions. We found that a poly-L-tyrosine (pTyr), a synthetic polyaminoacid, was able to direct nanoparticle formation to solid, flexible, and patterned surfaces preventing particle agglomeration. The gold particles were 8 +/- 2 nm in diameter, surrounded by 3-6 nm polyaminoacid shell, and confined to the topmost polyaminoacid layer. The reported results on bioinspired gold formation can be readily expanded to any inorganic-selective surface and provide a simple, robust, and nontoxic method to obtain nonaggregated inorganic nanoparticles at ambient conditions.<br />Published in Chemistry of Materials, v20 p5822-5831, 2008. Prepared in collaboration with Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, OH. Sponsored in part by Office of Naval Research.
Details
- Database :
- OAIster
- Journal :
- DTIC
- Notes :
- text/html, English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.ocn872740419
- Document Type :
- Electronic Resource