Synthesis, characterization, magnetic and antimicrobial properties of silver chromite nanoparticles

El-Bassuony, Asmaa A. H.; Abdelsalam, H. K.

doi:10.1007/s10854-020-02924-8

Cited by 21 publications

(6 citation statements)

References 50 publications

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“…Generally, the increase of the charge carriers decreases the crystallinity of the material. 49,50 Thus, AgCrO 2 is more crystalline than AgFeO 2 delafossite due to the (N/m*) of the AgCrO 2 delafossite being smaller than that of AgFeO 2 delafossite.…”

Section: Optical Propertiesmentioning

confidence: 99%

Influence of Elastic and Optical Properties on AgFeO2 and AgCrO2 Delafossite to be Applied in High-Frequency Applications

El-Bassuony

Abdelsalam

Gamal

2022

JOM

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Nanometric AgFeO2 and AgCrO2 delafossite were easily prepared by the flash auto-combustion method. The two main bands estimated from FTIR (Fourier-transform infrared) analysis were the tetrahedral A-site (573 cm−1 for AgFeO2, 630 cm−1 for AgCrO2) and the octahedral B-site (484 cm−1 for AgFeO2, 595 cm−1 for AgCrO2). This study is mainly focused on the elastic properties evaluated from the FTIR analysis and showed that AgCrO2 delafossite is more elastic than AgFeO2 delafossite. The elastic properties can be explained by studying the longitudinal and transverse velocities. Owing to the optical properties results, AgCrO2 delafossite is a promising material to be applied in optical devices. However, AgFeO2 delafossite is a promising material in magnetic applications because it showed a large switching field distribution by 9-fold more than that of AgCrO2 delafossite. Moreover, high-frequency applications were calculated from the magnetic analysis and showed that both samples could be applied in ultra-high microwave applications.

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Section: Optical Propertiesmentioning

confidence: 99%

Influence of Elastic and Optical Properties on AgFeO2 and AgCrO2 Delafossite to be Applied in High-Frequency Applications

El-Bassuony

Abdelsalam

Gamal

2022

JOM

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“…The easy, low cost, rapid, save time and give high yield method is the Flash auto-combustion technique in which all the investigated samples have been prepared with it [ 18 – 22 ]. Magnetic nanomaterials are important in many technological applications especially biomedical applications [ 23 – 25 ]. As reported, there is a relation between the saturation magnetization and the antimicrobial properties in which high saturation magnetization gives strong antibacterial activity [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Attractive study of the antimicrobial, antiviral, and cytotoxic activity of novel synthesized silver chromite nanocomposites

et al. 2022

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Antibiotic resistance is a global problem. This is the reason why scientists search for alternative treatments. In this regard, seven novel silver chromite nanocomposites were synthesized and assayed to evaluate their antimicrobial, antiviral, and cytotoxic activity. Five bacterial species were used in this study: three Gram-positive (Bacillus subtilis, Micrococcus luteus, and Staphylococcus aureus) and two Gram-negative (Escherichia coli and Salmonella enterica). Three fungal species were also tested: Candida albicans, Aspergillus niger, and A. flavus. The MIC of the tested compounds was determined using the bifold serial dilution method. The tested compounds showed good antibacterial activity. Maximum antibacterial activity was attained in the case of 15 N [Cobalt Ferrite (0.3 CoFe2O4) + Silver chromite (0.7 Ag0.5Cr2.5O4)] against M. luteus. Concerning antifungal activity, C. albicans was the most susceptible fungal species. The maximum inhibition was recorded also in case of 15 N [Cobalt Ferrite (0.3 CoFe2O4) + Silver chromite (0.7 Ag0.5Cr2.5O4)]. The most promising antimicrobial compound 15 N [Cobalt Ferrite (0.3 CoFe2O4) + Silver chromite (0.7 Ag0.5Cr2.5O4)] was assayed for its antiviral and cytotoxic activity. The tested compound showed weak antiviral activity. The cytotoxic activity against Mammalian cells from African Green Monkey Kidney (Vero) cells was detected. The inhibitory effect against Hepatocellular carcinoma cells was detected using a MTT assay. The antimicrobial effect of the tested compounds depends on the tested microbial species. The tested compounds could be attractive and alternative antibacterial compounds that open a new path in chemotherapy.

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“…50 Therefore, introducing strong antibacterial substances did not affect the microorganisms. [51][52][53] CONCLUSION Lanthanum perovskite-hematite (LaFeO 3 -Fe 2 O 3 ) (LaH) nanoparticles and a cobalt lanthanum nanofer- rite/lanthanum perovskite-hematite (0.3CoLa 0.02-Fe 1.98 O 4 /0.7LaFeO 3 -Fe 2 O 3 ) (CoLa/LaH) nanocomposite were prepared using a rapid method (flash). The XRD and AFM investigations of structure and morphology revealed that the materials have nanoscale sizes.…”

Section: Antimicrobial Studymentioning

confidence: 99%

Study of the Structural and Magnetic Properties of a Novel Cola/Lah Nanocomposite Material

Gamal

El-Bassuony

Hafez

et al. 2022

JOM

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A novel nanocomposite consisting of 0.3 cobalt lanthanum nanoferrite/0.7 lanthanum perovskite–hematite nanoparticles (CoLa/LaH) and lanthanum perovskite–hematite nanoparticles (LaH) was synthesized using a simple method. The crystallite size was determined by the X-ray diffraction (XRD) pattern, and the particle size was determined using atomic force microscopy (AFM) to demonstrate that the nano-samples had sizes within the nanoscale range. Fourier transform infrared analysis was utilized to ensure that the nano-samples were formed. By adding CoLa nanoferrite to the LaH nanoparticles, an improvement in magnetic measurements was observed. The saturation magnetization of the CoLa/LaH nanocomposite was 1.1-fold larger than that of LaH. Also, the CoLa/LaH coercivity was 1.7-fold higher than in LaH. Furthermore, the CoLa/LaH nanocomposite displayed a higher operating high frequency of 8.9 GHz, which could be used in an X-band super-high microwave frequency, than the LaH nanoparticles. The LaH nanoparticles, on the other hand, demonstrated a high operating frequency of 8.2 GHz, which could be used in the C-band super-high microwave frequency. No activity was observed for the investigated samples against the tested microorganisms, which was unexpected behavior. Therefore, the investigated nano-samples are interesting for being applied in magnetic targeting and separators, in particular the CoLa/LaH nanocomposite.

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Synthesis, characterization, magnetic and antimicrobial properties of silver chromite nanoparticles

Cited by 21 publications

References 50 publications

Influence of Elastic and Optical Properties on AgFeO2 and AgCrO2 Delafossite to be Applied in High-Frequency Applications

Influence of Elastic and Optical Properties on AgFeO2 and AgCrO2 Delafossite to be Applied in High-Frequency Applications

Attractive study of the antimicrobial, antiviral, and cytotoxic activity of novel synthesized silver chromite nanocomposites

Study of the Structural and Magnetic Properties of a Novel Cola/Lah Nanocomposite Material

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