Enhancement of corrosion resistance and bioactivity of titanium by Au nanoparticle-loaded TiO2 nanotube layer

Wang, Cunyang; Bai, Yu; Bai, Yuebin; Gao, Jingjun; Ma, Wen

doi:10.1016/j.surfcoat.2015.12.051

Cited by 16 publications

(5 citation statements)

References 31 publications

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“…Among these fillers and pigments, nanofillers physically block micropores and cavities of the polymer matrix and reduce the penetration of the electrolyte through the coating and consequently to the metal/coating interface due to a higher surface area compared to the microsized fillers conventionally used. 2,21 The barrier and corrosion protective properties of various types of nanofillers such as ZrO 2 , 22 Ag 2 O, 23 SiO 2 , 24 Al 2 O 3 , 25 ZnO, 26 Fe 2 O 3 , 27 Cr 2 O 3 , 28 TiO 2 , 29,30 Au, 31 and clay 32 incorpo-rated in epoxy coatings applied on steel substrates have been studied in saline aqueous solutions. It was shown that epoxy coatings offer better barrier and corrosion protective properties in the presence of these nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…The barrier and corrosion protective properties of various types of nanofillers such as ZrO 2 , Ag 2 O, SiO 2 , Al 2 O 3 , ZnO, Fe 2 O 3 , Cr 2 O 3 , TiO 2 , , Au, and clay incorporated in epoxy coatings applied on steel substrates have been studied in saline aqueous solutions. It was shown that epoxy coatings offer better barrier and corrosion protective properties in the presence of these nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and Corrosion Protection Properties of a Smart Composite Epoxy Coating with Dual-Encapsulated Epoxy/Polyamine in Carbon Nanospheres

Haddadi

Mahdavian

Taheri

et al. 2019

Ind. Eng. Chem. Res.

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Carbon nanocapsules doped separately with epoxy and polyamine were used to fabricate an epoxy nanocomposite coating. Carbon nanospheres with dual-encapsulated epoxy/ polyamine were dispersed uniformly in the epoxy resin at concentrations of 2, 5, and 10 wt %. The mechanical properties of the nanocomposites were studied by tensile testing and scratch hardness measurements. Furthermore, nanocomposites were applied on mild steel substrates, and their corrosion protection and barrier performance were evaluated using electrochemical impedance spectroscopy (EIS). Adhesion loss measurements of coatings after 240 h exposure to 3.5 wt % NaCl solution were performed by pull-off adhesion testing. Also, the buried steel/ polymer interface was studied in situ using attenuated total reflection Fourier transform infrared spectroscopy in the Kretschmann geometry. The results showed that both mechanical and corrosion protection properties of the prepared nanocomposites are enhanced as compared to the baseline epoxy coating and improved with the concentration of doped carbon nanocapsules. Maximum mechanical and corrosion protection properties were achieved in the case of 10 wt % doped carbon nanocapsules as a result of active intermolecular interactions between the epoxy and polyamine chains of the coating matrix and amine groups grafted on the surface of carbon capsules.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical and Corrosion Protection Properties of a Smart Composite Epoxy Coating with Dual-Encapsulated Epoxy/Polyamine in Carbon Nanospheres

Haddadi

Mahdavian

Taheri

et al. 2019

Ind. Eng. Chem. Res.

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“…Ferraris [9] has reported the medical grade Ti with micro-and nano-surface textured for dental implants. In Wang's research [10], gold (Au) nanoparticle-loaded TiO 2 nanotube layer can enhance the corrosion resistance and bioactivity of titanium for medical implants. In Zhang's research [11], mechanical behavior is correlated with the corrosion in the real application, where stress is normally.…”

Section: Introductionmentioning

confidence: 99%

Influence of roughness on in-vivo properties of titanium implant surface and their electrochemical behavior

Chen

Chang

et al. 2016

Surface and Coatings Technology

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“…[ 30 ] Moreover, the decoration of the functional layer further prevented the diffusion of the corrosive medium to the Ti surface, and the inherent inertness of Au NPs could also enhance the corrosion resistance of the samples. [ 31 ] The mechanical strength and the chemical stability of the Au‐RE/TiO 2 layer thus allowed the implant to be applied in the implantation surgery for a long period.…”

Section: Resultsmentioning

confidence: 99%

Photoelectrons Sequentially Regulate Antibacterial Activity and Osseointegration of Titanium Implants

Tang,

Wang,

et al. 2023

Advanced Materials

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Titanium implants are widely used in the biological field, however, implantation occasionally fails due to infection from the microbes during the surgery or poor osseointegration after the surgery. To solve the problem, we have designed an intelligent functional surface on the titanium implant that can sequentially eradicate bacteria biofilm at the initial period of post‐surgery time and promote osseointegration at the late period of post‐surgery time. Such surface can be excited by near infrared light (NIR), with rare earth nanoparticles (RE NPs) to upconvert the NIR light to visible range and adsorbed by Au nanoparticles (Au NPs), supported by TiO2 porous film grown tightly on titanium implants. Under NIR irradiation, the implant converts the energy of phonon to hot electrons and lattice vibrations at the surface, where the former flows directly to the contact substance or partially reacts with the surrounding to generate reactive oxygen species, and the latter leads to the increase of local temperature. The in vitro and in vivo experiments have suggested that the biofilm or microbes on the implant surface could be eradicated by NIR treatment. In addition, the surface exhibits superior biocompatibility for cell survival, adhesion, proliferation, and osteogenic differentiation, which provides the foundation for osseointegration. In‐vivo implantation experiments (micro‐computed tomography (micro‐CT), histological analysis, etc.) demonstrate that osseointegration is promoted, which could be attributed to the photoelectron‐induced manipulation of the osteogenesis‐related cells, surface topography, and bioactivity of functional nanoparticles. Our work thus has demonstrated that NIR‐generated electrons by upconversion can sequentially eradicate biofilms and regulate the osteogenic process, which provides a new direction to fabricate an efficient implant surface.This article is protected by copyright. All rights reserved

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Enhancement of corrosion resistance and bioactivity of titanium by Au nanoparticle-loaded TiO2 nanotube layer

Cited by 16 publications

References 31 publications

Mechanical and Corrosion Protection Properties of a Smart Composite Epoxy Coating with Dual-Encapsulated Epoxy/Polyamine in Carbon Nanospheres

Mechanical and Corrosion Protection Properties of a Smart Composite Epoxy Coating with Dual-Encapsulated Epoxy/Polyamine in Carbon Nanospheres

Influence of roughness on in-vivo properties of titanium implant surface and their electrochemical behavior

Photoelectrons Sequentially Regulate Antibacterial Activity and Osseointegration of Titanium Implants

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