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Deposition of silver nanoparticles on titanium surface for antibacterial effect.

Juan L, Zhimin Z, Anchun M, Lei L, Jingchao Z - Int J Nanomedicine (2010)

Bottom Line: The diameter of these nanoparticles ranged from ten to several hundred nm.EDS analyses revealed that there was 4.26% of Ag present on the surface.These data suggest that silver nanoparticle-modified titanium is a promising material with an antibacterial property that may be used as an implantable biomaterial.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, PR China.

ABSTRACT
Microbial colonization on implanted devices and biofilm formation is a recurrent complication in implant surgery and may result in loss of implants. The aim of this study was to deposit silver nanoparticles on a titanium surface to obtain antibacterial properties. In the present study, we prepared a silver nanoparticle-modified titanium (Ti-nAg) surface using silanization method. The morphology and chemical components of the Ti-nAg surface were characterized by scanning electron microscopy (SEM) equipped with energy-dispersive spectroscopy (EDS). Two species of bacteria, Staphylococcus aureus and Escherichia coli, were utilized to test the antibacterial effect of the Ti-nAg treated surface. The SEM examination revealed that a small quantity of silver nanoparticles was sparsely deposited on the titanium surface. The diameter of these nanoparticles ranged from ten to several hundred nm. EDS analyses revealed that there was 4.26% of Ag present on the surface. After a 24-hour incubation, 94% of Staphylococcus aureus and over 95% of Escherichia coli had been killed on the Ti-nAg surface, and the SEM examination of anti-adhesive efficacy test showed that there were less bacteria attached to Ti-nAg surface than to a control surface of untreated Titanium. These data suggest that silver nanoparticle-modified titanium is a promising material with an antibacterial property that may be used as an implantable biomaterial.

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Line scanning of EDS image of the particle on the Ti-nAg surface.Notes: The green line stands for Ag and the red line stands for titanium.Abbreviations: EDS, energy-dispersive spectroscopy; Ti-nAg, silver nanoparticle-modified titanium.
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f3-ijn-5-261: Line scanning of EDS image of the particle on the Ti-nAg surface.Notes: The green line stands for Ag and the red line stands for titanium.Abbreviations: EDS, energy-dispersive spectroscopy; Ti-nAg, silver nanoparticle-modified titanium.

Mentions: During the process of preparing the surfaces one noticeable change was the color of the titanium sheet which became gold after it had been etched using the piranha solution and treated with silver nanoparticle solution (Figure 1b). The SEM micrographs showed silver nanoparticles sparsely deposited on the titanium surface, with a diameter of approximately 100 nm. Some silver nanoparticles formed aggregates (Figure 2a–d). In contrast, the surface of the titanium sheet that has been etched by piranha solution, although not treated with the silver nanoparticle solution, showed many nanopores with a diameter of approximately 50 nm, (Figure 2f). After the Ti coupons had been polished (Figure 2e) no nanopores were observed. To verify the chemical elements present in the nanoparticles EDS analyses were performed. As shown in Figure 3, whenever the probe detected a silver nanoparticle (Figure 3a), the peak value of titanium reduced and the peak value of Ag increased (Figure 3b).The EDS analyses revealed that the nanoparticles on Ti-nAg surface were Ag and they were 4.26% Ag (Figure 4, Table 1).


Deposition of silver nanoparticles on titanium surface for antibacterial effect.

Juan L, Zhimin Z, Anchun M, Lei L, Jingchao Z - Int J Nanomedicine (2010)

Line scanning of EDS image of the particle on the Ti-nAg surface.Notes: The green line stands for Ag and the red line stands for titanium.Abbreviations: EDS, energy-dispersive spectroscopy; Ti-nAg, silver nanoparticle-modified titanium.
© Copyright Policy
Related In: Results  -  Collection

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getmorefigures.php?uid=PMC2865021&req=5

f3-ijn-5-261: Line scanning of EDS image of the particle on the Ti-nAg surface.Notes: The green line stands for Ag and the red line stands for titanium.Abbreviations: EDS, energy-dispersive spectroscopy; Ti-nAg, silver nanoparticle-modified titanium.
Mentions: During the process of preparing the surfaces one noticeable change was the color of the titanium sheet which became gold after it had been etched using the piranha solution and treated with silver nanoparticle solution (Figure 1b). The SEM micrographs showed silver nanoparticles sparsely deposited on the titanium surface, with a diameter of approximately 100 nm. Some silver nanoparticles formed aggregates (Figure 2a–d). In contrast, the surface of the titanium sheet that has been etched by piranha solution, although not treated with the silver nanoparticle solution, showed many nanopores with a diameter of approximately 50 nm, (Figure 2f). After the Ti coupons had been polished (Figure 2e) no nanopores were observed. To verify the chemical elements present in the nanoparticles EDS analyses were performed. As shown in Figure 3, whenever the probe detected a silver nanoparticle (Figure 3a), the peak value of titanium reduced and the peak value of Ag increased (Figure 3b).The EDS analyses revealed that the nanoparticles on Ti-nAg surface were Ag and they were 4.26% Ag (Figure 4, Table 1).

Bottom Line: The diameter of these nanoparticles ranged from ten to several hundred nm.EDS analyses revealed that there was 4.26% of Ag present on the surface.These data suggest that silver nanoparticle-modified titanium is a promising material with an antibacterial property that may be used as an implantable biomaterial.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, PR China.

ABSTRACT
Microbial colonization on implanted devices and biofilm formation is a recurrent complication in implant surgery and may result in loss of implants. The aim of this study was to deposit silver nanoparticles on a titanium surface to obtain antibacterial properties. In the present study, we prepared a silver nanoparticle-modified titanium (Ti-nAg) surface using silanization method. The morphology and chemical components of the Ti-nAg surface were characterized by scanning electron microscopy (SEM) equipped with energy-dispersive spectroscopy (EDS). Two species of bacteria, Staphylococcus aureus and Escherichia coli, were utilized to test the antibacterial effect of the Ti-nAg treated surface. The SEM examination revealed that a small quantity of silver nanoparticles was sparsely deposited on the titanium surface. The diameter of these nanoparticles ranged from ten to several hundred nm. EDS analyses revealed that there was 4.26% of Ag present on the surface. After a 24-hour incubation, 94% of Staphylococcus aureus and over 95% of Escherichia coli had been killed on the Ti-nAg surface, and the SEM examination of anti-adhesive efficacy test showed that there were less bacteria attached to Ti-nAg surface than to a control surface of untreated Titanium. These data suggest that silver nanoparticle-modified titanium is a promising material with an antibacterial property that may be used as an implantable biomaterial.

Show MeSH
Related in: MedlinePlus