Synthesis of silver nanoparticle-decorated hydroxyapatite (HA@Ag) poriferous nanocomposites and the study of their antibacterial activities

Ni, Zhihui; Gu, Xiuxian; He, Yali; Wang, Zhihua; Zou, Xueyan; Zhao, Yanbao; Sun, Lei

doi:10.1039/c8ra08148d

Cited by 82 publications

(37 citation statements)

References 60 publications

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“…Despite the fact that many metals occur in nature, only elements such as silver, palladium, platinum and gold are widely synthesized for their nanostructured aspect [3]. Silver nanoparticles (AgNPs), among the metals listed above, have drawn a great deal of interest because of their unique properties for use in the textile industries, agriculture, water detoxification, pharmaceutics, and as a catalyst in oxidation reactions and air filtration [4][5][6][7]. Chemical, physical, electrochemical, irradiative, photochemical, and biological methods are now available for the synthesis of silver nanoparticles [8,9].…”

Section: Introductionmentioning

confidence: 99%

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

et al. 2021

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Green synthesis of silver nanoparticles (AgNPs) employing an aqueous plant extract has emerged as a viable eco-friendly method. The aim of the study was to synthesize AgNPs by using plant extract of Sanvitalia procumbens (creeping zinnia) in which the phytochemicals present in plant extract act as a stabilizing and reducing agent. For the stability of the synthesized AgNPs, different parameters like AgNO3 concentration, volume ratios of AgNO3, temperature, pH, and contact time were studied. Further, AgNPs were characterized by UV–visible spectroscopy, FT-IR (Fourier Transform Infrared Spectroscopy), XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy), and EDX (Energy Dispersive X-ray Spectrometer) analysis. FT-IR analysis showed that the plant extract contained essential functional groups like O–H stretching of carboxylic acid, N–H stretching of secondary amides, and C–N stretching of aromatic amines, and C–O indicates the vibration of alcohol, ester, and carboxylic acid that facilitated in the green synthesis of AgNPs. The crystalline nature of synthesized AgNPs was confirmed by XRD, while the elemental composition of AgNPs was detected by energy dispersive X-ray analysis (EDX). SEM studies showed the mean particle diameter of silver nanoparticles. The synthesized AgNPs were used for photocatalytic degradation of Orange G and Direct blue-15 (OG and DB-15), which were analyzed by UV-visible spectroscopy. Maximum degradation percentage of OG and DB-15 azo dyes was observed, without any significant silver leaching, thereby signifying notable photocatalytic properties of AgNPs.

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Section: Introductionmentioning

confidence: 99%

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

et al. 2021

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“…It reveals that the Ag/Ag 3 PO 4 ‐IRMOF‐1and Ag/Ag 3 PO 4 samples indicate high antibacterial activities due to Ag + release in solution media. But, the MIC and MBC of Ag/Ag 3 PO 4 nanoparticles were rather high, compared with data of Ag NPs in other references . Probably, agglomerated Ag NPs have limited the antibacterial properties of the Ag/Ag 3 PO 4 nanoparticles and even nanocomposites.…”

Section: Resultsmentioning

confidence: 72%

A novel Ag/Ag₃PO₄‐IRMOF‐1 nanocomposite for antibacterial application in the dark and under visible light irradiation

Naimi-Joubani

Zanjanchi

Sohrabnezhad

2020

Applied Organom Chemis

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MOF‐5 that sometimes called IRMOF‐1 has been intensively studied in recent years to develop efficient photocatalyst to degrade refractory organics and inactivate bacteria for wastewater treatment. In the present work, Ag/Ag3PO4 nanoparticles incorporated in IRMOF‐1 was successfully prepared via hydrothermal approach. The antibacterial activity of synthesized materials (IRMOF‐1, Ag/Ag3PO4 nanoparticles and Ag/Ag3PO4‐IRMOF‐1 nanocomposite was compared against two types of bacteria (Escherichia coli (E. coil) as Gram negative and Staphylococcus aureus (S. aureus) as Gram‐positive bacteria). The deactivation of the bacteria by the prepared material was measured in the dark and under visible light irradiation. The antibacterial activity of synthesized samples was investigated by determining the minimal inhibitory concentration (MIC), minimal bactericidal concentration (MBC), growth inhibition assay and inhibition zone. The Ag/Ag3PO4‐IRMOF‐1 nanocomposite exhibited stronger antibacterial activities than the Ag/Ag3PO4 nanoparticles and IRMOF‐1 at all tested bacteria types. Based on inhibition zone, without any light irradiation, Ag/Ag3PO4‐IRMOF‐1 nanocomposite showed activity toward E. coil, but in presence of light nanocomposite depicted activity toward S. aureus. The results demonstrated that antibacterial activity of all synthesized samples in the dark and light against S. aureus bacteria was more than E. coil bacteria. The antibacterial activity mechanism was due to sustained‐release of silver ions in the dark and reactive oxygen species (ROS) under visible light. The bioactivity of IRMOF‐1 was related to the degradation of the its structure and the release of Zn2+ ions into the culture medium that bind to the cell wall and deactivation bacteria.

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“…Ag‐loaded hydroxyapatite (HA): Incorporating Ag into HA which is a popular biocompatible and bioactive biomaterial for bone repairing is an effective strategy to endow an antibacterial activity to HA‐based materials. There is an increasing interest in the study of Ag‐doped HA for antimicrobial applications in the recent two decades [22–47].…”

Section: Chemical Antibacterial Strategymentioning

confidence: 99%

Antimicrobial biomaterials with non‐antibiotic strategy

2019

Biosurface and Biotribology

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Biomedical implants have revolutionised medicine, while they also increase the risk of implant-associated infection which is one of the most frequent and severe complications accompanied by the application of biomaterials. Since the widespread usage of antibiotics drives the emergence of multidrug-resistant strains, the orthopaedic implant infections are usually hard to treat due to the antibiotic resistance, tolerance and/or persistence of pathogens. Given the growing impact of multidrug resistance, an urgent need has been triggered to develop new types of antimicrobial strategy other than using antibiotics. In this review, the authors highlight the recent progress on antimicrobial biomaterials with non-antibiotic strategies including chemical strategy, physical strategy, and synergetic strategy. The antimicrobial mechanisms of many kinds of non-antibiotic antimicrobial biomaterials are still not fully understood. Researchers gradually found that welcoming microbial cellular adhesion to a lethal surface was a more effective solution than targeting microbial cellular repulsion when designing antimicrobial surfaces. Moreover, there is a popular tendency to make the antimicrobial biomaterials not only kill pathogenic microbes but also facilitate the adhesion and growth of the healthy cell, which means that the next generation biomaterials should possess dual functions of preventing microbial infection together with promoting tissue regeneration simultaneously for biomedical applications.

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Synthesis of silver nanoparticle-decorated hydroxyapatite (HA@Ag) poriferous nanocomposites and the study of their antibacterial activities

Abstract: We demonstrate a facile and green rapid approach for the synthesis of uniform poriferous hydroxylapatite (HA) and poriferous silver nanoparticles (Ag NPs)-decorated hydroxylapatite (HA@Ag) nanocomposites with excellent antibacterial properties.

Cited by 82 publications

References 60 publications

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

A novel Ag/Ag₃PO₄‐IRMOF‐1 nanocomposite for antibacterial application in the dark and under visible light irradiation

Antimicrobial biomaterials with non‐antibiotic strategy

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Synthesis of silver nanoparticle-decorated hydroxyapatite (HA@Ag) poriferous nanocomposites and the study of their antibacterial activities

Abstract: We demonstrate a facile and green rapid approach for the synthesis of uniform poriferous hydroxylapatite (HA) and poriferous silver nanoparticles (Ag NPs)-decorated hydroxylapatite (HA@Ag) nanocomposites with excellent antibacterial properties.

Cited by 82 publications

References 60 publications

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

Phyto-Extract-Mediated Synthesis of Silver Nanoparticles Using Aqueous Extract of Sanvitalia procumbens, and Characterization, Optimization and Photocatalytic Degradation of Azo Dyes Orange G and Direct Blue-15

A novel Ag/Ag3PO4‐IRMOF‐1 nanocomposite for antibacterial application in the dark and under visible light irradiation

Antimicrobial biomaterials with non‐antibiotic strategy

Contact Info

Product

Resources

About

A novel Ag/Ag₃PO₄‐IRMOF‐1 nanocomposite for antibacterial application in the dark and under visible light irradiation