Synthesis and comparative studies of MnFe2O4 nanoparticles with different natural polymers by sol–gel method: structural, morphological, optical, magnetic, catalytic and biological activities

Jacintha, A. Mary; Umapathy, V.; Neeraja, P.; Rajkumar, Shalini

doi:10.1007/s40097-017-0248-z

Cited by 82 publications

(16 citation statements)

References 42 publications

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“…It is evident from Figure 4a that the FTIR bands are found at 449, 502, 572, 702, 871, 1004, 1409, 1483, 2164, and 3745 cm −1 . [ 50–59 ] In the spinel structure, cations reside in octahedral and tetrahedral sites depending upon their octahedral site preference energy with different cationic stretching vibrations. [ 52–54,57,58 ]…”

Section: Resultsmentioning

confidence: 99%

Superparamagnetic Manganese Ferrite and Strontium Bioactive Glass Nanocomposites: Enhanced Biocompatibility and Antimicrobial Properties for Hyperthermia Application

et al. 2020

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Herein, the strontium bioactive glass with ferrite composites is studied for the application of biocompatibility and magnetic hyperthermia. The bioactive glass SrBG (46.1SiO2–21.9CaO–24.4Na2O–2.6P2O5–5SrO) prepared by the melt quench technique at 1400 °C and manganese ferrite (MnFe2O4) prepared by the modified microwave reflux oven are mixed together and sintered at 400 °C for 6 h for making composites. The in vitro bioactivity of these composites is observed by immersing in simulated body fluid (SBF). The growth of the precipitated hydroxyapatite phase observed after SBF treatment is confirmed by the X‐ray diffractometer (XRD), Fourier transform infrared (FTIR) spectrometer, and scanning electron microscope (SEM) results. The in vitro cell viability assessment of these composites with MG‐63 cell lines indicates that the composites are biocompatible in nature. Furthermore, these composites show the antibacterial effect on the E. coli and S. Aureus bacteria cells. The room temperature superparamagnetic behavior accompanied by the heating ability in these composites proves their potential role for hyperthermia applications.

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Section: Resultsmentioning

confidence: 99%

Superparamagnetic Manganese Ferrite and Strontium Bioactive Glass Nanocomposites: Enhanced Biocompatibility and Antimicrobial Properties for Hyperthermia Application

et al. 2020

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“…The inset shows d-spacing of 0.49 nm, consistent with the (111) plane of the Mn crystal structure. EDAX analysis from HRTEM represents the presence of Mn, Fe and O elements in figure 2(d) and the compositional analysis (table 1) represents the weight and atomic % of element distribution in the system [25,26]. From which, it is found that the Fe to Mn ratio was 2.16:1 that is close to the stoichiometry of theoretical ratio.…”

Section: Resultsmentioning

confidence: 56%

Manganese ferrite nanocubes as an MRI contrast agent

Ravichandran

Velumani

2020

Mater. Res. Express

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Facile synthesis of superparamagnetic, highly crystalline, manganese ferrite nanocubes (MnNCs) is reported. X-ray diffraction depicts single-phase face-centred cubic spinel and the electron microscopy represents the nearly monodispersed cube-like nanostructure with the size ranging from 18 to 20 nm. Vibrating sample magnetometer shows magnetization field-dependent curves at 300 K exhibiting the superparamagnetic behaviour of NCs with negligible remanence. Furthermore, the biocompatibility of NCs was proved by MTT assay. These unique characteristics make this NCs as a contrast agent ideally suited for T 2 -weighted MR imaging. This novel method of synthesizing NCs proves to be very attractive for various biomedical applications because of their outstanding stability and biocompatibility.

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“…Nanopartikel superparamagnetik ferrit memiliki aktivitas antibakteri yang potensial (Jacintha et al 2017). Penelitian sebelumnya telah melaporkan nanopartikel MnFe2O4 PEG-chitosan yang disintesis menggunakan ekstrak Carum copticum memiliki aktivitas antibakteri yang signifikan terutama terhadap bakteri gram negatif (Esmaeili & Ghobadanpuour 2016).…”

Section: Pendahuluanunclassified

Ekstrak Daun Andalas sebagai Capping Agent dalam Green Hydrothermal Synthesis Nanopartikel Mangan Ferrit dan Aplikasinya sebagai Antibakteri

2019

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Abstrak: Pada penelitian ini telah dilakukan sintesis nanopartikel MnFe2O4 secara hidrotermal menggunakan ekstrak daun andalas (M. macroura Miq.) sebagai capping agent. Penelitian ini bertujuan untuk mengetahui pengaruh pH terhadap bentuk dan ukuran nanopartikel MnFe2O4. MnFe2O4 EN10 dan MnFe2O4 EN12 disintesis menggunakan ekstrak daun andalas dan NaOH dengan pH masing-masing 10 dan 12, sementara MnFe2O4 N10 dan MnFe2O4 N12 disintesis tanpa menggunakan ekstrak daun andalas hanya dengan penambahan NaOH pada pH 10 dan 12. Hasil analisis X-Ray Diffraction (XRD) menunjukkan karakteristik MnFe2O4 spinel kubik dengan ukuran kristal 11-16 nm, sedangkan MnFe2O4 E menunjukkan tidak terbentuknya spinel ferrit MnFe2O4 yang terbentuk hanya pengotor yaitu α-Fe2O3. Hasil karakterisasi Scanning Electron Microscopy (SEM) menunjukkan bahwa morfologi nanopartikel MnFe2O4 berbentuk spheric. Nanopartikel MnFe2O4 diaplikasikan sebagai antibakteri terhadap bakteri S. aureus dan E. coli dengan metode sumur.Kata kunci: MnFe2O4, hidrotermal, daun andalas, green synthesis, antibakteri Abstract: In this study hydrothermal synthesis of MnFe2O4 nanoparticles was carried out using andalas leaf extract (M. macroura Miq.) as capping agent. This study aims to determine the effect of pH on the shape and size of MnFe2O4 nanoparticles. MnFe2O4 EN10 and MnFe2O4 EN12 were synthesized using andalas leaf extract and NaOH with a pH of 10 and 12, respectively, while MnFe2O4 N10 and MnFe2O4 N12 were synthesized without using andalas leaf extract only by adding NaOH at pH 10 and 12. X-Ray Diffraction analysis results (XRD) shows the characteristics of MnFe2O4 cubic spinel with a crystal size of 11-16 nm, whereas MnFe2O4 E shows no formation of spinel ferrite MnFe2O4 which formed only impurities namely α-Fe2O3. The results of the characterization of Scanning Electron Microscopy (SEM) showed that the morphology of MnFe2O4 nanoparticles was spheric. MnFe2O4 nanoparticles were applied as antibacterial to the bacteria S. aureus and E. coli with the well method.

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Synthesis and comparative studies of MnFe2O4 nanoparticles with different natural polymers by sol–gel method: structural, morphological, optical, magnetic, catalytic and biological activities

Cited by 82 publications

References 42 publications

Superparamagnetic Manganese Ferrite and Strontium Bioactive Glass Nanocomposites: Enhanced Biocompatibility and Antimicrobial Properties for Hyperthermia Application

Superparamagnetic Manganese Ferrite and Strontium Bioactive Glass Nanocomposites: Enhanced Biocompatibility and Antimicrobial Properties for Hyperthermia Application

Manganese ferrite nanocubes as an MRI contrast agent

Ekstrak Daun Andalas sebagai Capping Agent dalam Green Hydrothermal Synthesis Nanopartikel Mangan Ferrit dan Aplikasinya sebagai Antibakteri

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