Antibacterial silver coating on poly(ethylene terephthalate) fabric by using high power impulse magnetron sputtering

Antimicrobial Nanostructured Coatings: A Gas Phase Deposition and Magnetron Sputtering Perspective

“…It is interesting to note that such films composed of a single element present good adhesion, as shown by the ASTM D3359 cellophane tape test on hard and flexible substrates. On the other hand, the mixing into the coating of elements needed to obtain killing activity against both GP and GN strains has raised the issue of the coating mechanical stability [44,56,[116][117][118]. Musil et al [44,118] suggested that in this kind of thin film, the relative content of the most efficient antibacterial metals, Ag and Cu, needs to be between 10% and 30%, and this almost always results in a strong reduction of its hardness and in a poor mechanical stability, in particular if the film thickness is on the order of hundreds of nm.…”

“…Musil et al [44,118] suggested that in this kind of thin film, the relative content of the most efficient antibacterial metals, Ag and Cu, needs to be between 10% and 30%, and this almost always results in a strong reduction of its hardness and in a poor mechanical stability, in particular if the film thickness is on the order of hundreds of nm. This is a major drawback, since many practical applications of antibacterial coatings on contact surfaces of rigid or flexible substrates require a long lifetime, and therefore hardness and resistance to wear [56,116,117]. Moreover, when such coatings are deposited on flexible substrates, they easily crack and/or delaminate due to the residual stress resulting from the growth mode (for some reviews on thin film growth modes and on the effect on surfaces, see for instance [119,120]).…”

“…The mechanical characteristics measured through Vickers tests were the film hardness H, defined as its resistance to local plastic deformation [122], the elastic recovery We, defined as the fraction of a given deformation of a solid which behaves elastically [123], the Young's modulus E and the effective Young's modulus E* = E(1 − ν 2 ), where ν = Poisson ratio has been obtained by mechanical indentation. The results obtained on the Zr-Cu-N coatings are summarized in Figure 4a resistance to wear [56,116,117]. Moreover, when such coatings are deposited on flexible substrates, they easily crack and/or delaminate due to the residual stress resulting from the growth mode (for some reviews on thin film growth modes and on the effect on surfaces, see for instance [119,120]).…”

Preparation and Characterization of FC Films Coated on PET Substrates by RF Magnetron Sputtering

“…The magnetron sputtering technology can be used to prepare super-hard films, wearable and corrosion-resistant films, superconducting films, magnetic films, optical films, and other specific films [1]. It has been using the magnetron sputtering to deposit thin films on fabric to obtain functionalities, such as wettability, hydrophilicity, hydrophobicity, antibacterial property, and uvioresistant property [2][3][4][5][6][7][8][9].…”

Performance of FC Film Deposited on PET Fabric by a Magnetron Sputtering Method

“…Recently, it has been used to prepare dielectric films, lubricate films and the other functional macromolecule films [1][2][3][4][5].…”