Rietveld, cation distribution and elastic investigations of nanocrystalline Li0.5+0.5xZrxFe2.5-1.5xO4 synthesized via sol-gel route

Kounsalye, Jitendra S.; Humbe, Ashok V.; Chavan, Apparao R.; Jadhav, K. M.

doi:10.1016/j.physb.2018.08.007

Cited by 21 publications

(3 citation statements)

References 37 publications

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“…The ionic radii of the B sites increased due to the settlement of the Ce 3+ ions. This augmentation in the ionic radii of the A and B sites reduced the fundamental frequency [ 26 , 33 ]. The peaks with a wave number of 2354 cm −1 were attributed to the presence of carbonyl groups, while the peak at around 2926 cm −1 was ascribed to O-H stretching [ 10 , 11 , 12 , 25 , 34 , 35 ].…”

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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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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“…ions to the A-sites; consequently, an equivalent number of Zn 2? ions also transfer from A-sites to B-sites to equalize the strain [48,52,53]. The peaks around 1105 cm -1 are attributed to the Fe-M ferrite system.…”

Section: Structural Studiesmentioning

confidence: 99%

Structural, optical, and magnetic properties of nanostructured Ag-substituted Co-Zn ferrites: insights on anticancer and antiproliferative activities

Alshahrani

Elsaeedy

Fares

et al. 2021

J Mater Sci: Mater Electron

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Magnetic spinel ferrite nanoparticles possess high scientific attention for the researchers attributed to its broad area for biomedicine purposes, comprising cancer magnetic hyperthermia and targeted drug delivery. Herein, we report the ultrasound irritation assisted the sol-gel method for the spinel Zn 0.5 Co 0.5x Ag 2x Fe 2 O 4 (x = 0.00, 0.10, 0.20, and 0.30) nanoparticles (NPs) synthesis. The Rietveld refinement patterns revealed the successful synthesis of the cubic structure Zn 0.5 Co 0.5-x Ag 2x Fe 2 O 4 and the crystallite size ranged from 14.1 nm to 18.4 nm. Also, the optical band gap decreased from 2.39 eV for Co-Zn ferrite to 2.20 eV for Zn 0.5 Co 0.2 Ag 0.6 Fe 2 O 4 sample. Electron paramagnetic resonance spectroscopy was used to study ferromagnetic resonance characteristics of the Zn 0.5 Co 0.5-x Ag 2x Fe 2 O 4 samples. The resonance field was increased from 2512.2 Gauss for Co-Zn ferrite sample to 2834.8 Gauss for Zn 0.5 Co 0.2 Ag 0.6 Fe 2 O 4 sample, while the line width decreased from 2401.3 to 1990.1 Gauss. Also, the saturation was reduced from 45.68 emu.g -1 for the pristine Zn 0.5 Co 0.5 Fe 2 O 4 sample to 22.20 emu.g -1 for Zn 0.5 Co 0.2 Ag 0.6 Fe 2 O 4 sample. Furthermore, cytotoxicity of Zn 0.5-Co 0.2 Ag 0.6 Fe 2 O 4 NPs against human breast cancer MCF-7, HepG2 liver cancer, and LoVo colorectal cancer cells was examined. The cytotoxicity of Zn 0.5 Co 0.2-Ag 0.6 Fe 2 O 4 on the previous cancer cell lines resulted in inhibition of cell growth estimated by MTT assay.

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“…Notably, there was little difference in the intensity and full width at half-maximum (fwhm) of the characteristic diffraction peaks between the BTO-T and the pristine BTO, which demonstrates that the NaBH 4 reduction method did not alter the intrinsic crystal structure of the BaTiO 3 . Moreover, it was found from the detailed analysis of the XRD patterns that the position of the (102) peak gradually shifted to the left at a small angle with temperature, suggesting that the lattice distortion occurred in their crystal structure . In order to further reveal the structure evolution of the thermal reduced samples, the XRD patterns were refined by the Rietveld refinement technique with the help of the GSAS program (Figure S1).…”

Section: Resultsmentioning

confidence: 99%

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Wang

Feng

et al. 2023

ACS Appl. Mater. Interfaces

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Multidrug-resistant bacteria caused by the unlimited overuse of antibiotics pose a great challenge to global health. An antibacterial method based on reactive oxygen species (ROS) is one of the effective strategies without inducing bacterial resistance. Owing to the ability of generating ROS, piezocatalytic material-mediated sonodynamic therapy (SDT) has drawn much attention. However, its major challenge is the low ROS generation efficiency in the piezocatalytic process due to the poor charge carrier concentration of piezoelectric materials. Vacancy engineering can regulate the charge density and largely promote ROS generation under ultrasound (US) irradiation. Herein, a US-responsive self-doped barium titanate with controlled oxygen vacancy (Vo) concentrations was successfully synthesized through a facile thermal reduction treatment at different temperatures (i.e., 350, 400, and 450 °C), and the corresponding samples were named as BTO-350, BTO-400, and BTO-450, respectively. Then, the effect of Vo concentrations on ROS generation efficiency during the piezocatalytic process was systematically studied. And BTO-400 was found to possess the highest piezocatalytic activity and excellent sonodynamic antibacterial performance against Escherichia coli and Staphylococcus aureus. Furthermore, its antibacterial mechanism was confirmed that the ROS generated under US could damage bacterial cell membrane and cause considerable leakage of cytoplasmic components and irreversible death of bacteria. Notably, the in vivo results illustrated that the BTO-400 could serve as an effective antibacterial agent and accelerate skin healing via SDT therapy. In all, the Vo defect-modified nano-BaTiO3 has a noticeable potential to induce a rapid and efficient sterilization as well as skin tissue repair by SDT.

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Rietveld, cation distribution and elastic investigations of nanocrystalline Li0.5+0.5xZrxFe2.5-1.5xO4 synthesized via sol-gel route

Cited by 21 publications

References 37 publications

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

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

Structural, optical, and magnetic properties of nanostructured Ag-substituted Co-Zn ferrites: insights on anticancer and antiproliferative activities

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

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Rietveld, cation distribution and elastic investigations of nanocrystalline Li0.5+0.5xZrxFe2.5-1.5xO4 synthesized via sol-gel route

Cited by 21 publications

References 37 publications

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

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

Structural, optical, and magnetic properties of nanostructured Ag-substituted Co-Zn ferrites: insights on anticancer and antiproliferative activities

Defect-Modified nano-BaTiO3 as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

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Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization