Ultrasound Radiation as a “Throwing Stones” Technique for the

I. Perelshtein,† G. Applerot,† N. Perkas,† J. Grinblat,† E. Hulla,‡ E. Wehrschuetz-Sigl,‡ A. Hasmann,‡ G. Guebitz,‡ and A. Gedanken*,† †

Kanbar Laboratory for Nanomaterials, Department of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel

‡

Institut fu¨r Umweltbiotechnologie, Petersgasse 12, 8010 Graz, Austria

ABSTRACT Ultrasound irradiation was applied as a “throwing stones” technique for coating cotton bandages with MgO and Al2O3 commercially obtained nanoparticles. The homogeneous distribution of the nanoparticles without any aggregation on the fabrics was demonstrated. The antibacterial activities of the MgO/Al2O3-fabric nanocomposite were tested against Escherichia coli (Gram negative) and Staphylococcus aureus (Gram positive) cultures. A significant bactericidal effect, even in a concentration