Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

Maksoud, M. I. A. Abdel; El-Sayyad, Gharieb S.; El-Bastawisy, Hanan S.; Fathy, Rasha M.

doi:10.1039/d1ra04785j

Cited by 44 publications

(11 citation statements)

References 101 publications

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“…Nano-Ag particles tend to agglomerate at small diameters, < 20 nm, due to their large surface-to-volume ratio and high surface energy, which reduces their antibacterial activity. This difficulty has been addressed by researching silver-carriers such as titanium dioxide, zeolite, activated carbon, and silica, and these efforts have greatly increased their antimicrobial effectiveness (Abdel Maksoud et al 2021 , 2022 ; Bekhit et al 2022 ; Qasim et al 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

2022

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The bacterial wilt is a global destructive plant disease that initiated by the phytopathogenic Ralstonia solanacearum. This study display a novel biofabrication of silica/silver nanocomposite using Fusarium oxysporum-fermented rice husk (RH) under solid state fermentation (SSF). The biofabricated nanocomposite was characterized by XRD, UV–Vis. spectroscopy, DLS, SEM, EDX elemental mapping, and TEM analyses as well as investigated for anti-R. solanacearum activity. Response surface methodology was also processed for optimizing the biofabrication process and improving the anti-bacterial activity of the fabricated nanocomposite. Maximum suppression zone of 29.5 mm against R. solanacearum was reached at optimum RH content of 6.0 g, AgNO3 concentration of 2.50 mM, reaction pH of 6.3, and reaction time of 2 days. The anti-R. solanacearum activity of the fabricated nanocomposite was further improved by exposing the F. oxysporum strain to a gamma irradiation dose of 200 Gy. In conclusion, RH recycling under SSF by F. oxysporum could provide an innovative, facile, non-expensive, and green approach for fabricating SiO2/Ag nanocomposite that could be applied efficiently as an eco-friendly antibacterial agent to combat R. solanacearum in agricultural applications. Moreover, the developed method could serve as a significant platform for the designing of new nanostructures for broad applications.

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Section: Discussionmentioning

confidence: 99%

Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

2022

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“…Pieces of agar around 5 mm in diameter and 2–3 mm thick with colonies of interest were cut with a dissecting tool. 44 To each sample, 4% glutaraldehyde (EL-Nasr Pharmaceuticals Chemicals Co., Cairo, Egypt) was used as a primary fixative in 0.1 M phosphate buffer and was added in a sufficient amount to wet the agar block. The plate was covered and left to stand for up to 24 hours at room temperature.…”

Section: Methodsmentioning

confidence: 99%

Nanobiotic formulations as promising advances for combating MRSA resistance: susceptibilities and post-antibiotic effects of clindamycin, doxycycline, and linezolid

et al. 2021

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“…Similar behavior was seen in previous work. 50 Figure 3 shows the FT-IR spectrum of CWO and PANi/ CWO nanocomposite. CWO's characteristic FTIR peaks appeared in 420-840 cm À1 attributed to W-O and Cu-O.…”

Section: Bach Studymentioning

confidence: 99%

Gamma radiation‐induced synthesis of polyaniline/CuWO₄nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

Abdel Maksoud,

Ghobashy,

Aly

et al. 2024

Applied Organom Chemis

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The release of cobalt‐60 and cesium‐137 in the environment is considered dangerous pollutants. In this concern, the present work deals with gamma radiation‐induced synthesis of novel polyaniline/CuWO4 (PANi/CWO) nanocomposite adsorbent and estimating its potential adsorption capacity for cobalt‐60 and cesium‐137 from aqueous solution. The crystallite size of pure CWO NPs and PANi/CWO nanocomposite is found in the nanoscale range. Also, SEM images and XRD results confirmed the successful preparation of PANi/CWO nanocomposite. Further, the elemental mapping images proved that all the investigated elements were homogeneously distributed over the PANi/CWO nanocomposite. Besides, the adsorption experiments were conducted separately to investigate the adsorption behavior of cobalt‐60 and cesium‐137 by PANi/CWO nanocomposite. Adsorption processes have also been performed, and numerous factors, including medium pH, contact time, initial metal ion concentration, and temperature, have been tested. Batch experiments were done to get the optimum conditions for removing cobalt‐60 and cesium‐137. Four kinetic models were investigated, indicating that the adsorption process of cobalt‐60 and cesium‐137 onto PANi/CWO nanocomposite is controlled by chemisorption and intra‐particle diffusion. Four equilibrium isotherm models were investigated, revealing that the adsorption process is a monolayer and multilayer process on a heterogeneous surface. The (∆Ho) value suggested that this study's removal of cesium and cobalt has an endothermic behavior, whereas the positive (∆So) value proved that the examined system is random. The effect of temperature was investigated, and the calculated thermodynamic parameters indicated that the removal of cobalt‐60 and cesium‐137 by PANi/CWO nanocomposite has an endothermic behavior.

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Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

Abstract: This work aimed at the gamma irradiation-assisted synthesis of silver (Ag)-decorated ZnFe2O4 (ZFO) ferrite nanoparticles (NPs), which were tested for their antibacterial and antibiofilm activities against some pathogenic bacteria from medical operating room surfaces.

Cited by 44 publications

References 101 publications

Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

Nanobiotic formulations as promising advances for combating MRSA resistance: susceptibilities and post-antibiotic effects of clindamycin, doxycycline, and linezolid

Gamma radiation‐induced synthesis of polyaniline/CuWO₄nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

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Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

Abstract: This work aimed at the gamma irradiation-assisted synthesis of silver (Ag)-decorated ZnFe2O4 (ZFO) ferrite nanoparticles (NPs), which were tested for their antibacterial and antibiofilm activities against some pathogenic bacteria from medical operating room surfaces.

Cited by 44 publications

References 101 publications

Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

Nanobiotic formulations as promising advances for combating MRSA resistance: susceptibilities and post-antibiotic effects of clindamycin, doxycycline, and linezolid

Gamma radiation‐induced synthesis of polyaniline/CuWO4nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

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Gamma radiation‐induced synthesis of polyaniline/CuWO₄nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions