Ag NPs decorated on the magnetic rod-like hydroxyapatite/MIL-101(Fe) nanocomposite as an efficient catalyst for the reduction of some nitroaromatic compounds and as an effective antimicrobial agent

Beiranvand, Maryam; Farhadi, Saeed; Mohammadi-Gholami, Abdelnasser

doi:10.1039/d3ra01180a

Cited by 8 publications

(4 citation statements)

References 61 publications

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“…The zeta potential of ionic non-substituted hydroxyapatite is a negative charge [42,43], and the zeta potential of hydroxyapatite used in this study is unlikely to favor adhesion to S. mutans since the zeta potential of S. mutans is also a negative charge. According to recent reports, ion doping has changed the zeta potential of hydroxyapatite to a positive charge and acquired higher antibacterial properties [44,45]. Therefore, it is necessary to prepare hydroxyapatite with a positive zeta potential and analyze the changes in the gene expression of S. mutans in the presence of hydroxyapatite to achieve a higher inhibitory effect against S. mutans.…”

Section: Discussionmentioning

confidence: 99%

Inhibitory Effect of Adsorption of Streptococcus mutans onto Scallop-Derived Hydroxyapatite

Usuda

Kametani

Hamada

et al. 2023

IJMS

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Hydroxyapatite adsorbs various substances, but little is known about the effects on oral bacteria of adsorption onto hydroxyapatite derived from scallop shells. In the present study, we analyzed the effects of adsorption of Streptococcus mutans onto scallop-derived hydroxyapatite. When scallop-derived hydroxyapatite was mixed with S. mutans, a high proportion of the bacterial cells adsorbed onto the hydroxyapatite in a time-dependent manner. An RNA sequencing analysis of S. mutans adsorbed onto hydroxyapatite showed that the upregulation of genes resulted in abnormalities in pathways involved in glycogen and histidine metabolism and biosynthesis compared with cells in the absence of hydroxyapatite. S. mutans adsorbed onto hydroxyapatite was not killed, but the growth of the bacteria was inhibited. Electron microscopy showed morphological changes in S. mutans cells adsorbed onto hydroxyapatite. Our results suggest that hydroxyapatite derived from scallop shells showed a high adsorption ability for S. mutans. This hydroxyapatite also caused changes in gene expression related to the metabolic and biosynthetic processes, including the glycogen and histidine of S. mutans, which may result in a morphological change in the surface layer and the inhibition of the growth of the bacteria.

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Section: Discussionmentioning

confidence: 99%

Inhibitory Effect of Adsorption of Streptococcus mutans onto Scallop-Derived Hydroxyapatite

Usuda

Kametani

Hamada

et al. 2023

IJMS

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“…The use of different magnetic nanoparticles [ 299 ], and nanocomposites [ 172 , 300 ] as antimicrobial agents arises from their unique properties, which enable tailored approaches for addressing bacterial infections effectively. Magnetic hydroxyapatite is one of the promising materials for biomedical applications due to its biocompatibility, biodegradability, and magnetic properties [ 177 , 287 , 301 , 302 , 303 ].…”

Section: Magnetic Hydroxyapatite Nanoparticles In Nanomedicinementioning

confidence: 99%

Magnetic Hydroxyapatite Nanoparticles in Regenerative Medicine and Nanomedicine

Inam,

Sprio,

Tavoni

et al. 2024

IJMS

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This review focuses on the latest advancements in magnetic hydroxyapatite (mHA) nanoparticles and their potential applications in nanomedicine and regenerative medicine. mHA nanoparticles have gained significant interest over the last few years for their great potential, offering advanced multi-therapeutic strategies because of their biocompatibility, bioactivity, and unique physicochemical features, enabling on-demand activation and control. The most relevant synthetic methods to obtain magnetic apatite-based materials, either in the form of iron-doped HA nanoparticles showing intrinsic magnetic properties or composite/hybrid compounds between HA and superparamagnetic metal oxide nanoparticles, are described as highlighting structure–property correlations. Following this, this review discusses the application of various magnetic hydroxyapatite nanomaterials in bone regeneration and nanomedicine. Finally, novel perspectives are investigated with respect to the ability of mHA nanoparticles to improve nanocarriers with homogeneous structures to promote multifunctional biological applications, such as cell stimulation and instruction, antimicrobial activity, and drug release with on-demand triggering.

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“…Hence, the removal of these pollutants is paramount in the assessment of contamination risks and the minimization of potential health hazards (Rehan and Elhaddad 2024 ). There are certain challenges in this sector, despite the numerous studies on photocatalysis or catalytic for destroying pharmaceuticals (Bagheri et al 2017 , Majumdar and Pal 2020 , Pham et al 2023 , Sawunyama et al 2023 ), nitroaromatic compounds (Aswathy et al 2023 ; Beiranvand et al 2023 ; Shahzaib et al 2023 ), and dyes (Guo et al 2023 ; Rafiq et al 2021 ; Saeed et al 2022 ). The majority of the literature focused on removing only one sort of contaminant at a time.…”

Section: Introductionmentioning

confidence: 99%

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Rehan,

Montaser,

El-Shahat

et al. 2024

Environ Sci Pollut Res

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To effectively remove pharmaceuticals, nitroaromatic compounds, and dyes from wastewater, an efficient multifunctional material was created based on silver nanoparticles (Ag) and MIL-125-NH2 (MOF) immobilized on viscose fibers (VF) as a support substrate. Firstly, silver nanoparticles (Ag) were immobilized on the surface of viscose fibers (VF) via in situ synthesis using trisodium citrate (TSC) as a reducing agent to create (VF-Ag). Then, VF and VF-Ag were decorated with the titanium metal–organic framework MIL-125-NH2 (MOF) to create VF-MOF and VF-Ag-MOF. The influence of VF-Ag, VF-MOF, and VF-Ag-MOF on the sonocatalytic or sonophotocatalytic degradation of sulfa drugs was investigated. The results show that VF-Ag-MOF showed excellent sonocatalytic and sonophotocatalytic activity towards the degradation of sulfa drugs compared to VF-Ag and VF-MOF. Furthermore, sonophotodegradation showed a dramatic enhancement in the efficiency of degradation of sulfa drugs compared to sonodegradation. The sonophotodegradation degradation percentage of sulfanilamide, sulfadiazine, and sulfamethazine drugs in the presence of VF-Ag-MOF was 65, 90, and 95 after 45 min of ultrasonic and visible light irradiation. The catalytic activity of VF-Ag, VF-MOF, and VF-Ag-MOF was evaluated through the conversion of p-nitrophenol (4-NP) to p-aminophenol (4-AP). The results demonstrate that VF-Ag-MOF had the highest catalytic activity, followed by VF-Ag and VF-MOF. The conversion percentage of 4-NP to 4-AP was 69%. The catalytic or photocatalytic effects of VF-Ag, VF-MOF, and VF-Ag-MOF on the elimination of methylene blue (MB) dye were investigated. The results demonstrate that VF-Ag-MOF showed high efficiency in removing the MB dye through the reduction (65%) or photodegradation (71%) after 60 min. VF-Ag-MOF composites structure–activity relationships represent that doping within silver NPs enhanced the photocatalytic activity of MIL-125-NH2, which could be explained as follows: (i) Due to the formation of a Schottky barrier at the junction between MIL-125-NH2 and Ag NPs, the photogenerated electrons in the conduction band of MIL-125-NH2 were supposed to be quickly transferred to the valence band of the Ag NPs, and subsequently, the electrons were transferred to the conduction band of Ag NPs. This considerable electron transferring process, which is reported as Z scheme heterojunction, can efficiently suppress the recombination of electron/hole pairs in VF-Ag-MIL-125-NH2 composites. (ii) Sufficient separation between the photogenerated charge carriers (holes and electrons) and avoiding their recombination enhanced the photocatalytic activity of composites.

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Ag NPs decorated on the magnetic rod-like hydroxyapatite/MIL-101(Fe) nanocomposite as an efficient catalyst for the reduction of some nitroaromatic compounds and as an effective antimicrobial agent

Abstract: A novel HAP/MIL-101(Fe)/Ag/Fe3O4 magnetic nanocomposite was synthesized and used for the rapid catalytic reduction of nitro compounds and as an antibacterial agent at room temperature.

Cited by 8 publications

References 61 publications

Inhibitory Effect of Adsorption of Streptococcus mutans onto Scallop-Derived Hydroxyapatite

Inhibitory Effect of Adsorption of Streptococcus mutans onto Scallop-Derived Hydroxyapatite

Magnetic Hydroxyapatite Nanoparticles in Regenerative Medicine and Nanomedicine

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

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