With the emergence of nanotechnology, the search for effective biocidal agents has focused on the development of
nano-sized particles of materials such as silver [6], copper, zinc oxide [7] and gold [8]. Out of these, silver and gold
are prohibitively expensive to be used on industrial scale. Therefore, current research work focuses metal oxides like
TiO2 as effective antibacterial agents for coating on the high density polyethylene (HDPE) films. TiO2 has been
chosen for the nanoparticle coating on HDPE films since the antimicrobial activity of TiO2 nanoparticles is well
established [9-13].