Nanostructured Mg substituted Mn-Zn ferrites: A magnetic recyclable catalyst for outstanding photocatalytic and antimicrobial potentials

Maksoud, M. I. A. Abdel; El-Sayyad, Gharieb S.; El‐Khawaga, Ahmed M.; Elkodous, M. Abd; Abokhadra, A.; El-Sayed, Mohamed A.; Gobara, Mohamed; Soliman, L. I.; El-Bahnasawy, H. H.; Ashour, Ahmed

doi:10.1016/j.jhazmat.2020.123000

Cited by 76 publications

(36 citation statements)

References 90 publications

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“…Lastly, in the acidic medium, ionic species are created (Ni, Ag, and Zn ions), resulting in cellular and genotoxicity due to the interactions among the negatively charged vital organelles. 86,87 Conclusion RGO and its nanocomposites with metal-oxide (NiO, AgO, and ZnO) NPs were designed and fabricated in this work. The SEM/ EDX mapping technique distinguished the effect of the hybridization of the metal oxide NPs on the external shape of the prepared RGO.…”

Section: Antibiolm Potential Of the Synthesized Rgo-metal Oxide Nanocompositesmentioning

confidence: 99%

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

et al. 2021

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Section: Antibiolm Potential Of the Synthesized Rgo-metal Oxide Nanocompositesmentioning

confidence: 99%

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

et al. 2021

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“…It is important to state that the grown moderate mono-size distributed ZnCe x Fe 2−x O 4 (X = 0.0, 0.02, 0.04, 0.06, 0.08) NPs were attributed to the synthesis method, and the particle size distribution was sharply increased as Ce 3+ ions content increased in the prepared sample. It is common that DLS size measurements become higher than the crystallite size (D) measurements ( Figure 1 ), as DLS analysis is estimating the hydrodynamic radius of ZnCe x Fe 2−x O 4 (X = 0.0, 0.02, 0.04, 0.06, 0.08) NPs bounded by water molecules, resulting in larger particle sizes of the capped NPs, while XRD analysis is calculating the crystallite size of the powder material without water layer [ 42 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Abdel-Rafei

Thabet

Maksoud

et al. 2021

IJMS

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Cancers are a major challenge to health worldwide. Spinel ferrites have attracted attention due to their broad theranostic applications. This study aimed at investigating the antimicrobial, antibiofilm, and anticancer activities of ebselen (Eb) and cerium-nanoparticles (Ce-NPs) in the form of ZnCexFe2−XO4 on human breast and colon cancer cell lines. Bioassays of the cytotoxic concentrations of Eb and ZnCexFe2−XO4, oxidative stress and inflammatory milieu, autophagy, apoptosis, related signalling effectors, the distribution of cells through the cell-cycle phases, and the percentage of cells with apoptosis were evaluated in cancer cell lines. Additionally, the antimicrobial and antibiofilm potential have been investigated against different pathogenic microbes. The ZOI, and MIC results indicated that ZnCexFe2−XO4; X = 0.06 specimen reduced the activity of a wide range of bacteria and unicellular fungi at low concentration including P. aeruginosa (9.5 mm; 6.250 µg/mL), S. aureus (13.2 mm; 0.390 µg/mL), and Candida albicans (13.5 mm; 0.195 µg/mL). Reaction mechanism determination indicated that after ZnCexFe2−xO4; X = 0.06 treatment, morphological differences in S. aureus were apparent with complete lysis of bacterial cells, a concomitant decrease in the viable number, and the growth of biofilm was inhibited. The combination of Eb with ZFO or ZnCexFe2−XO4 with γ-radiation exposure showed marked anti-proliferative efficacy in both cell lines, through modulating the oxidant/antioxidant machinery imbalance, restoring the fine-tuning of redox status, and promoting an anti-inflammatory milieu to prevent cancer progression, which may be a valuable therapeutic approach to cancer therapy and as a promising antimicrobial agent to reduce the pathogenic potential of the invading microbes.

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“…DLS size measurements were higher than particle size measurements in TEM. DLS analysis is estimating the hydrodynamic radius of nano-SiO 2 and SiO 2 /Ag nanocomposite bounded by water molecules, resulting in larger particle sizes of the capped nanoparticles, while TEM is calculating the average particle size of the powder material without the water layer (Abdel Maksoud et al 2020 ). Based on the obtained PDI values, the prepared particles in the nanocomposite showed moderate mono-size dispersion.…”

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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Nanostructured Mg substituted Mn-Zn ferrites: A magnetic recyclable catalyst for outstanding photocatalytic and antimicrobial potentials

Cited by 76 publications

References 90 publications

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

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

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