Silver Nano-Trees Deposited in the Pores of Anodically Oxidized Titanium and Ti Scaffold

摘要

The authors present a possibility of growing silver nano-trees in the pits and voids of a titaniumsurface. The titanium samples used in the experiments were prepared via two different processingpaths - by anodic oxidation and powder metallurgy. In the first case a porous Ti oxide surface wasformed, whereas in the second case a Ti void composite of the porosity of approx. 70% was formed.Electrochemical deposition using HNO3 + AgNO3 mixture leads to a formation of Ag nano-trees thatare embedded in the pores. The Ag nano-trees, which are fixed in the pits and voids, should bepromising in antibacterial application. The materials were characterized by scanning electronmicroscopy and Raman spectroscopy.