SONOCHEMICAL COATING OF TEXTILES WITH METAL OXIDE NANOPARTICLES FOR ANTIMICROBIAL FABRICS

摘要

We disclose a system for preparing antimicrobial surfaces, coated with metal oxide nanoparticles by means of a novel sonochemical method. These antibacterial surfaces are widely used in medical and other applications. The deposition of metal oxides known to possess antimicrobial activity, namely ZnO, MgO and CuO, can significantly extend the applications of textile fabrics, medical devices and other items and prolong the period of their use. By means of the novel sonochemical method disclosed here, uniform deposition of metal oxide nanoparticles is achieved simply.

主权项

1. A method comprising:
immersing a surface in a mixture of metal acetate (M(AC)2) added to a solution; adjusting a pH of the mixture to a range of about 8-10; and ultrasonically irradiating the mixture via ultrasonic waves, the ultrasonic waves
(i) sonochemically causing bubbles to form in the mixture; and(ii) sonochemically causing the bubbles to collapse, wherein the collapsing of the bubbles:
create metal oxide (MO) nanoparticles from the M(AC)2; andform microjets near the surface that embed the MO nanoparticles into the surface.