Abstract:In the current work, pulse current deposition has been used to prepare evenly distributed and uniformly sized Ag nanoparticles on a TiO2 nanotube array photoelectrode. The Ag particle size and loading were controlled by the pulse deposition time. The Ag/TiO2 nanotube arrays were characterized by SEM, TEM, XRD, XPS and UV-vis diffuse reflection absorption. The resulting electrode contained intimately coupled, three-dimensional Ag/TiO2 structures with greatly improved photocurrent generation and charge transfer … Show more
“…5 (a)), i.e., Ag 3d 5/2 and Ag 3d 3/2 binding energies appeared at 369 eV and 375 eV, respectively. This is in good agreement with metallic silver values [44,45]. XPS spectrum of Zn 2p (Fig.…”
Section: Experimental Procedures For Photocatalytic Degradation Of Dyesupporting
“…5 (a)), i.e., Ag 3d 5/2 and Ag 3d 3/2 binding energies appeared at 369 eV and 375 eV, respectively. This is in good agreement with metallic silver values [44,45]. XPS spectrum of Zn 2p (Fig.…”
Section: Experimental Procedures For Photocatalytic Degradation Of Dyesupporting
“…Ag 3d 5/2 peak for AgO is at 367.4 eV. 32 So, the XPS spectrum of Ag 3d in TiNT-Ag60s (Figure 4) further confirms that the nanoparticles are AgO. Both TEM and XPS results clearly show that AgO nanoparticles were on the TiNTs.…”
Section: Characterization Of Ago-deposited Tintssupporting
Infection-related complications have been a critical issue for the application of titanium orthopedic implants. The use of Ag nanoparticles offers a potential approach to incorporate antimicrobial properties into the titanium implants. In this work, a novel and simple method was developed for synthesis of Ag (II) oxide deposited TiO
2
nanotubes (TiNTs) using electrochemical anodization followed by Ag electroplating processes in the same electrolyte. The quantities of AgO nanoparticles deposited in TiNT were controlled by selecting different electroplating times and voltages. It was shown that AgO nanoparticles were crystalline and distributed throughout the length of the nanotubes. Inductively coupled plasma mass spectrometry tests showed that the quantities of released Ag were less than 7 mg/L after 30 days at 37°C. Antimicrobial assay results show that the AgO-deposited TiNTs can effectively kill the
Escherichia coli
bacteria. Although the AgO-deposited TiNTs showed some cytotoxicity, it should be controllable by optimization of the electroplating parameters and incorporation of cell growth factor. The results of this study indicated that antimicrobial properties could be added to nanotextured medical implants through a simple and cost effective method.
“…6 c) peak located at 400.4 eV could be assigned to neutral amino group -NH2 or N-H bond of amide bond present in the protein moiety [ 24,25,26 ].From the survey scan (Fig.6d) and spectrum of Ag 3d (Fig. 6 e) the binding energies of Ag 3d5/2 and Ag 3d3/2 are found to be at 368 and 374 eV, respectively[ 27,28,29,30 ].Therefore, it is concluded that the proteins were responsible for the bio-reduction of AgNO3 into AgNPs. X-ray diffraction analysis X-ray diffraction is used to assess the crystalline structure and preferred orientation in powder solid samples of the AgNPs.…”
Section: Xps Of the Silver Nanoparticlesmentioning
Nanobiotechnology deals with the properties of nanomaterials and their potential uses. Here we report for the first time novel, cost-effective and eco-friendly method for the rapid green synthesis of silver nanoparticles (AgNPs) using leaf extracts of Myriostachya wightiana. The growth of silver nanoparticles was monitored by UV-vis spectroscopy complemented by Zeta potential, dynamic light scattering technique (DLS), Fouriertransform infrared spectroscopy (FTIR), Transmission electron microscope (TEM) and X-ray diffraction (XRD).The surface plasmon resonance (SPR)
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