New solutions for combatting implant bacterial infection based on silver nano-dispersed and gallium incorporated phosphate bioactive glass sputtered films: A preliminary study

Evaluation of Antibacterial Effects of Matrix-Induced Silver Ions against Antibiotic-Resistant ESKAPE Pathogens

“…In a previous study, B.W. Stuart et al released silver ions from phosphate bioactive glasses in water, and the concentration of silver ions dramatically increased in 4 h, but slowed between 4 h and 12 h [32]. To better investigate the ion state of silver species in four different matrixes, the high-resolution XPS spectra of W-Ag, Tau-Ag, PBS-Ag, and TSB-Ag are demonstrated in Figure 2.…”

Gallium containing bioactive materials: A review of anticancer, antibacterial, and osteogenic properties

“…A homogenous, crack-free, and 1 μm thick coating was obtained, enabling apatite formation on the surface of the alloy substrate. Moreover, Stuart et al [ 108 , 141 ] incorporated Ga into phosphate bioactive glass thin-films (Ga-PBG) to develop antibacterial activities and enhance osteogenesis potential for applications in next generation implant coatings. Ga-PBG coatings reduced the viability of E. coli and S. aureus bacteria compared to uncoated titanium.…”

Opposite effects of gold and silver nanoparticle decoration of graphenic surfaces on bacterial attachment

“…45,53 Briefly, bacterial strain suspensions (2.0 McFarland in DPBS) were centrifuged (5 min, 5000 rpm) and set in contact with NP solutions. After 1 h of incubation at 37 1C, the samples were centrifuged, washed three times with DPBS, and fixed in glutaraldehyde (3% in DPBS) for 24 h. Afterward, the samples were washed in DPBS, rinsed with osmium tetroxide (Sigma-Aldrich) solution (1% in DPBS, 4 h), and dehydrated in ethanol solutions (15 min for each sample) with gradually increasing concentrations (20,30,40,50,60,70,80,90,96, and 100%). After dehydration, the samples were rinsed with propylene oxide (Sigma-Aldrich) for 20 min and incubated overnight in a 1 : 1 propylene oxide/resin mixture (Durcupan, Sigma-Aldrich).…”

“…Surface-stabilized AgNPs may also release Ag + . 69,70 The concentration of total Ag in solution after 1 h incubation in PBS measured via the F-AAS method was 0.06 mg L À1 . The F-AAS results show that the concentration of these ions was at least 10 3 times lower than the minimal inhibitory concentration (MIC).…”