Novel multifunctional films

Brook, L.A.; Evans, Philip G.; Foster, H. A.; Pemble, Martyn E.; Sheel, David W.; Steele, Abbey; Yates, Heather M.

doi:10.1016/j.surfcoat.2007.04.020

Cited by 42 publications

(32 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various antibacterial coatings have been investigated in the literature [1][2][3][4][5][6][7][8][9][10][11] and some of them are available on the market [12][13][14][15]. In particular silver-containing materials are being widely used since silver is known to have a powerful anti-bacterial activity [5,16,17] and to induce low bacterial resistance compared to that of antibiotics.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Silver nanocluster-silica composite antibacterial coatings for materials to be used in mobile telephones

Miola

Perero

Ferraris

et al. 2014

Applied Surface Science

View full text Add to dashboard Cite

a b s t r a c tAntibacterial coatings containing different amount of metallic silver nanoclusters embedded in a silica matrix have been deposited by co-sputtering technique on several different polymers used in mobile telephones components such as: screens, covers, and microphone felts.Sputtering parameters have been varied to obtain different coating thickness and silver content, in order to meet antibacterial, aesthetic and functional requirements for each component. In particular, an antibacterial functionality has been obtained for screens, covers and felts without affecting their respective transparency, aesthetic and acoustic properties.The optimal parameters for each part have been used to obtain an antibacterial mobile telephone suitable for personnel operating in hospitals or other environments with potentially high bacterial contamination.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Several techniques able to provide an antibacterial surface on different materials have been developed [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Silver nanocluster-silica composite antibacterial coatings for materials to be used in mobile telephones

Miola

Perero

Ferraris

et al. 2014

Applied Surface Science

View full text Add to dashboard Cite

show abstract

“…The disadvantages of conventional PVD deposition approach are: the high investment costs and the high temperatures needed precluding film deposition on textiles besides the large amount of heat used requiring costly cooling systems. Recently, Foster et al [9], Yates et al [10], Musil et al [11], and Brooks et al [12] have reported antibacterial Ag and Cu coatings on glass and polymer films depositing the metal/oxides by CVD.…”

Section: Introductionmentioning

confidence: 99%

Comparison of HIPIMS sputtered Ag- and Cu-surfaces leading to accelerated bacterial inactivation in the dark

Rtimi

Baghriche

Pulgarín

et al. 2014

Surface and Coatings Technology

View full text Add to dashboard Cite

Recently, compact uniform and adhesive films of Ag and Cu have been prepared by DC-magnetron sputtering (DC), pulsed DC magnetron sputtering (DCP) and high power impulse magnetron sputtering (HIPIMS). This study reports the HIPIMS deposition for Ag and Cu on textile fabrics, the bacterial inactivation kinetics and the nature of the species in the plasma produced during HIPIMS sputtering. The deposition rates of Ag and Cu atoms and the bacterial inactivation times are reported in the dark and under light as a function of the applied peak currents during the sputtering by HIPIMS. By X-ray photoelectron spectroscopy (XPS), the surface percentage atomic concentration and the oxidation state changes are reported during bacterial inactivation. The Ar and metal-ions produced in the magnetron chamber were determined by mass spectroscopy (QMS). A mechanism for the bacterial inactivation is suggested for Ag and Cu HIPIMS sputtered surfaces.

show abstract

“…In the literature, various solutions to bacterial contamination of solid surfaces have been proposed. This includes, for instance, conventional chemical or physical surface cleaning as well as high-technology surface treatments such as silver ion implantation, [9,10] silver composite thin films, [11][12][13] TiO 2 under UV radiation, [14][15][16] polymer films containing triclosan, [17] quaternary ammonium salts, [18,19] and UV-activated core-shell composite nanoparticles which can be sprayed onto solid surfaces, including the human body. [20][21][22] Some major disadvantages of the above solutions are the complexity and the high cost of the fabrication process, as well as the use of UV radiation to activate the anti-bacterial behavior when TiO 2 is involved.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, silver doping can enhance the photocatalytic property of TiO 2 when small quantities are incorporated, [32] or when it is deposited on the surface of the film. [33,34] The processes that have been extensively used for the growth of TiO 2 -Ag are sol-gel, [32,33] CVD, [12,34,35] and PVD. [36] The anti-bacterial properties of the TiO 2 -Ag nanocomposite coatings were investigated under UV irradiation, but the results could be a combination of the anti-bacterial effect of the TiO 2 surface coating and of direct UV sterilization.…”

Section: Introductionmentioning

confidence: 99%

CVD Elaboration of Nanostructured TiO₂‐Ag Thin Films with Efficient Antibacterial Properties

Mungkalasiri

Bedel

Emieux

et al. 2010

Chemical Vapor Deposition

View full text Add to dashboard Cite

Nanostructured TiO 2 -Ag composite coatings are deposited by direct liquid injection metal-organic (DLI-MO) CVD at 683 K in a one-step process. Silver pivalate (AgPiv) and titanium tetra-iso-propoxide (TTIP) are used as Ag and Ti molecular precursors, respectively. Metallic silver nanoparticles are co-deposited with anatase TiO 2 on stainless steel, glass, and silicon wafers. The silver particles are uniformly embedded in the oxide matrix through the entire film thickness. The influence of the growth conditions, including injection parameters, is investigated on the chemical, physical, and structural characteristics of the coatings as well as on their anti-bacterial activities. The bacterium Staphylococcus aureus is employed for anti-bacterial tests. The films are bactericidal, according to the JIS Z 2801 standard test performed in the dark, when they contain less than 1 at.-% of silver. Under UV irradiation they exhibit a photocatalytic activity which decays by increasing the silver content. As a result of this dual functionality, the TiO 2 -Ag nanocomposite coatings show promising potentialities as long-term anti-bacterial surfaces since selfcleaning can be achieved periodically under UV light in order to maintain an efficient anti-bacterial activity in the dark or in visible light.

show abstract

Novel multifunctional films

Cited by 42 publications

References 25 publications

Silver nanocluster-silica composite antibacterial coatings for materials to be used in mobile telephones

Silver nanocluster-silica composite antibacterial coatings for materials to be used in mobile telephones

Comparison of HIPIMS sputtered Ag- and Cu-surfaces leading to accelerated bacterial inactivation in the dark

CVD Elaboration of Nanostructured TiO₂‐Ag Thin Films with Efficient Antibacterial Properties

Contact Info

Product

Resources

About

Novel multifunctional films

Cited by 42 publications

References 25 publications

Silver nanocluster-silica composite antibacterial coatings for materials to be used in mobile telephones

Silver nanocluster-silica composite antibacterial coatings for materials to be used in mobile telephones

Comparison of HIPIMS sputtered Ag- and Cu-surfaces leading to accelerated bacterial inactivation in the dark

CVD Elaboration of Nanostructured TiO2‐Ag Thin Films with Efficient Antibacterial Properties

Contact Info

Product

Resources

About

CVD Elaboration of Nanostructured TiO₂‐Ag Thin Films with Efficient Antibacterial Properties