Authors : C. M. Tank1, S. V. Bhoraskar2, and V. L. Mathe3*
Page Nos : 1243-1250
Description :
Silica-coated silicon nanotubes (SNTs) were synthesized using direct arc plasma assisted gas phase condensation. Transmission electron microscopy showed that SNTs exhibited average diameter of 14 nm with length of several 100 nm. The wall thickness was found to be less than 1 nm which is the first report of its own kind. The anti bacterial activity of these nanotubes was studied for two Gram-positive and Gram-negative bacteria using the optical densitometric technique, and by determining colony-forming units. SNTs showed good activity against all the tested bacteria. Specifically SNTs were found to inhibit multidrug-resistant Staphylococcus aureus at 10 μg/ml (IC 50 = 100 μg/ml).
Keywords
Silicon nanotubes, Thermal plasma synthesis, Thin-walled, Antibacterial activity.
