Preparation and antibacterial properties of hybrid-zirconia films with silver nanoparticles

Azócar, Manuel; Vargas, Esteban; Duran, Nicole; Arrieta, Abel; González, E.; Pavez, Jorge; Kogan, Marcelo J.; Zagal, José H.; Páez, Maritza

doi:10.1016/j.matchemphys.2012.09.042

Cited by 20 publications

(9 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Silver has a historic performance in medicine due to its powerful antimicrobial activity [27][28][29][30][31][32][33][34], with a broad-spectrum of activity against different microorganisms which usually implies the oxidation of metallic silver to Ag + [35,36]. Since bacterial infections are associated with prosthetic failures, silver has been considered as a coating of A C C E P T E D M A N U S C R I P T…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Ferreri

Galindo

Palácio

et al. 2015

Materials Science and Engineering: C

View full text Add to dashboard Cite

Nowadays, with the increase of elderly population and related health problems, knee and hip joint prosthesis are being widely used worldwide. However, failure of these invasive devices occurs in a high percentage thus demanding the revision of the chirurgical procedure. Within the reasons of failure, microbial infections, either hospital or subsequently-acquired, contribute in high number to the statistics. Staphylococcus epidermidis (S. epidermidis) has emerged as one of the major nosocomial pathogens associated with these infections. Silver has a historic performance in medicine due to its potent antimicrobial activity, with a broad-spectrum on the activity of different types of microorganisms. Consequently, the main goal of this work was to produce Ag-ZrCN coatings with antimicrobial activity, for the surface modification of hip prostheses. Thin films of ZrCN with several silver concentrations were deposited onto stainless steel 316 L, by DC reactive magnetron sputtering, using two targets, Zr and Zr with silver pellets (Zr+Ag target), in an atmosphere containing Ar, C2H2 and N2. The antimicrobial activity of the modified surfaces was tested against S. epidermidis and the influence of an activation step of silver was assessed by testing samples after immersion in a 5% (w/v) NaClO solution for 5 min. The activation procedure revealed to be essential for the antimicrobial activity, as observed by the presence of an inhibition halo on the surface with 11 at.% of Ag. The morphology analysis of the surface before and after the activation procedure revealed differences in silver distribution indicating segregation/diffusion of the metallic element to the film's surface. Thus, the results indicate that the silver activation step is responsible for an antimicrobial effect of the coatings, due to silver oxidation and silver ion release.

show abstract

Section: Accepted Manuscriptmentioning

confidence: 99%

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Ferreri

Galindo

Palácio

et al. 2015

Materials Science and Engineering: C

View full text Add to dashboard Cite

show abstract

“…Comparing the antibacterial ability and mechanism of Ag containing alloys or composites [10,23,32,38,39] most of literatures conclude that Ag + -ions-release causes the bacteria-inhibiting effect. In this study, YSZ-Ag composites exhibited significant inhibiting effect when 0.5 wt% Ag was added.…”

Section: The Effect Of Ag-ions-release On Bacteria Inhibitingmentioning

confidence: 99%

A mechanistic study on the antibacterial behavior of silver doped bioceramic

Chung

Lin

et al. 2015

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Silver nanoparticles exhibit antibacterial properties against broad spectrum of bacteria, such as Escherichia coli [2,4,11], Bacillus subtilis [4], Staphylococcus aureus [4,11], Streptococcus sp [8], Psuedomonas sp [8], Pseudomonas aeruginosa [4], Listeria monocytogenes [11], Salmonella typhi [4,11], and Streptococcus mutans [12].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Antibacterial properties of membranes modified by acrylic acid with silver nanoparticles

Bojarska

Piątkiewicz

2015

Desalination and Water Treatment

View full text Add to dashboard Cite

Organic fouling is a very important problem in case of membrane filtration processes. Partially, impact of fouling might be overcome by: back puls, membrane cleaning, cross-flow filtration, or surface modification. In this paper, first, surface modification of membrane by acrylic acid and then silver nanoparticles will be presented. In the first step of modification, acrylic acid is grafted to the surface of the polypropylene capillary membrane, thanks to Fenton-type reaction. Then, membranes are further modified by the synthesis of silver nanoparticles directly on the membrane surface. It is well known that silver nanoparticles exhibit antibacterial properties for micro-organisms such as Escherichia coli and Bacillus subtilis. Also the presence of acrylic acid on the surface of the membrane should reduce adhesion of particles to the membrane surface. In the present work, results obtained for acrylic acid grafting will be presented including FT-IR analysis and the amount of grafted carboxylic groups. Results for membranes further modified by silver nanoparticles, as well as tests for antibacterial properties of such membranes, will be presented. Antibacterial properties of modified membranes were tested on two model gram positive and gram negative bacteria: E. coli and B. subtilis. Tests were performed in liquid and solid Lysogeny Broth. The presented membranes exhibit very good antibacterial/bacteriostatic properties.

show abstract

Preparation and antibacterial properties of hybrid-zirconia films with silver nanoparticles

Cited by 20 publications

References 32 publications

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

A mechanistic study on the antibacterial behavior of silver doped bioceramic

Antibacterial properties of membranes modified by acrylic acid with silver nanoparticles

Contact Info

Product

Resources

About