Enhanced antibacterial and corrosion resistance properties of Ag substituted hydroxyapatite/functionalized multiwall carbon nanotube nanocomposite coating on 316L stainless steel for biomedical application

Sivaraj, D.; Vijayalakshmi, K.

doi:10.1016/j.ultsonch.2019.104730

Cited by 71 publications

(30 citation statements)

References 58 publications

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“…The Ag NP has shown good antibacterial properties as it contacts with microorganisms through crossing cell membranes and disrupting bacterial proteins [13][14][15][16]. The application based on the antibacterial mechanisms of Ag NP is limited due to the use of large amount of precious metal and the accompanying leaching.…”

Section: Antibacterial Activity Of Ag/tio 2 /Pda Nanofilm Under Visibmentioning

confidence: 99%

“…Presently, the antibacterial mechanism of 316L SS is mainly based on the dissolution of Ag, Cu, or Zn ions [9][10][11][12], which is limited by several factors such as the safe range of ion concentration, competition between rates of ion dissolution and bacterial proliferation and the antibacterial period [13][14][15][16]. Photocatalysis is a highly efficient and inexpensive technique to inhibit and kill the bacteria [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial properties of Ag/TiO2/PDA nanofilm on anodized 316L stainless steel substrate under illumination by a normal flashlight

Liu

et al. 2020

J Mater Sci

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The demand of medical materials for rapid and efficient elimination of bacteria has seen a dramatic surge over the past few years. In this study, antibacterial nanofilms with reactive oxygen species were generated by photocatalysis. To prepare these nanofilms, Ag and amorphous TiO 2 nanoparticles decorated on polydopamine (PDA) were coated on three-dimensional (3D) nanopore arrays, which was fabricated on a substrate of anodized stainless steel. All the antibacterial tests were conducted with a household flashlight, which may be considered as a practical approach for antibacterial materials. The photoelectrochemical property of the 3D Ag/TiO 2 /PDA nanofilm on 316L stainless steel (Ag/TiO 2 /PDA SS) was about 15 times higher than that of the annealed Ag/ TiO 2 /PDA SS, and consequently, it exhibited higher antibacterial activity. The enhanced photoelectrochemical property is attributed to the successful separation of electrons (amorphous TiO 2 ) and holes (Ag nanoparticles). Further, when a plate containing 3D Ag/TiO 2 /PDA SS was irradiated with visible light just for 10 min, it immediately destroyed the bacteria in 10 6 CFU/mL without any bacterial colony. After five weeks, there were still no bacterial colonies in the plate corresponding to Ag/TiO 2 /PDA SS under visible light, while Ag/TiO 2 / PDA SS in dark had a negligible effect on the bacteria, i.e., the antibacterial mechanism through direct contact and ion dissolution was not efficient. The excellent antibacterial properties of 3D Ag/TiO 2 /PDA SS illuminated by flashlight provides an efficient, facile, and cost-effective technique for the development of antibacterial medical materials to meet the increasing demand of eliminating bacterial infections.

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Section: Antibacterial Activity Of Ag/tio 2 /Pda Nanofilm Under Visibmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antibacterial properties of Ag/TiO2/PDA nanofilm on anodized 316L stainless steel substrate under illumination by a normal flashlight

Liu

et al. 2020

J Mater Sci

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“…According to their results, the measured corrosion currents in Hanks’ solution varied between 0.4 and 0.9 µAcm −2 , depending on the morphology of the HAp powder. There are also research works on studying the corrosion characteristic of ionic doped CP coatings [ 34 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 ]. Iqbal et al [ 34 ] reported the biodegradability properties of zinc-doped hydroxyapatite−zeolite/polycaprolactone composite coating, prepared by dip coating onto a magnesium substrate.…”

Section: Resultsmentioning

confidence: 99%

Morphological, Chemical, and Biological Investigation of Ionic Substituted, Pulse Current Deposited Calcium Phosphate Coatings

Furkó

Balázsi

2020

Materials

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Ionic substituted calcium phosphate coatings (iCP) have been prepared by the electrochemical pulse current deposition technique with an alternate pulse on and off time of 5 ms onto a titanium alloy substrate. The elemental distribution and morphology of the deposited layers have been extensively studied by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and transmission electron microscopy (TEM). The crystallinity and phase structure of iCPs have been investigated by X-ray diffraction (XRD). The corrosion characteristics and biodegradability of coatings have been determined by electrochemical measurements, recording potentiodynamic curves in a physiological solution over a long-term immersion period. The cell viability tests confirmed that the iCP coating was biocompatible, while the corrosion tests proved its biodegradable characteristic. In our paper, we compare the morphological, chemical, and biological characteristics of silver and zinc substituted calcium phosphate layers deposited by the electrochemical method.

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“…Advances in Materials Science and Engineering as antibiotics, metallic nanomaterials, and some natural antibiotics [81,82]. erefore, the addition of MNPs can mitigate the disadvantages of CS.…”

Section: Analgesicmentioning

confidence: 99%

Recent Advances in Chitosan‐Based Metal Nanocomposites for Wound Healing Applications

Wang

et al. 2020

Advances in Materials Science and Engineering

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Chitosan (CS) has been extensively studied as a natural polymer, in the field of wound repair, due to its useful properties, which include a lack of toxicity and stimulation, excellent biological affinity, degradability, and promotion of collagen deposition. However, inferior mechanical strength and moderate antibacterial properties are the drawbacks restricting its further clinical application. Many researchers have adopted the use of nanotechnology, in particular metallic nanoparticles (MNPs), in order to improve the mechanical strength and specific antibacterial properties of chitosan composites, with promising results. Furthermore, chitosan naturally functions as a reducing agent for MNPs, which can also reduce cytotoxicity. Thus, CS, in combination with MNPs, exhibits antibacterial activity, excellent mechanical strength, and anti-inflammatory properties, and it has great potential to accelerate the process of wound healing. This review discusses the current use of CS and MNPs in wound healing and emphasises the synergy and the advantages for various applications in wound healing.

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Enhanced antibacterial and corrosion resistance properties of Ag substituted hydroxyapatite/functionalized multiwall carbon nanotube nanocomposite coating on 316L stainless steel for biomedical application

Cited by 71 publications

References 58 publications

Antibacterial properties of Ag/TiO2/PDA nanofilm on anodized 316L stainless steel substrate under illumination by a normal flashlight

Antibacterial properties of Ag/TiO2/PDA nanofilm on anodized 316L stainless steel substrate under illumination by a normal flashlight

Morphological, Chemical, and Biological Investigation of Ionic Substituted, Pulse Current Deposited Calcium Phosphate Coatings

Recent Advances in Chitosan‐Based Metal Nanocomposites for Wound Healing Applications

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