Comparative Study of MnFe2 O 4 Nanoparticles Synthesized by Sol-gel Method with Two Different Surfactants

Jacintha, Mary; Neeraja, P.; Sivakumar, M.; Chinnaraj, K.

doi:10.1007/s10948-016-3714-9

Cited by 18 publications

(7 citation statements)

References 23 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%

“…[ 51 ] Symmetric stretching of non‐bridging oxygen atoms between SiO 4 tetrahedral units is found as a minor absorption band at around 702 cm −1 , whereas the band at around 1004 cm −1 is due to the SiOSi asymmetric stretching mode of vibration with one non‐bridging oxygen (SiO1NBO) per SiO 4 tetrahedral unit. [ 50,51,55 ] The band at 871 cm −1 is attributed to the POP asymmetric stretching mode of vibration. [ 59 ] The bands at around 1409 and 1483 cm −1 represent the CH bending modes of vibration.…”

Section: Resultsmentioning

confidence: 99%

“…The absorption bands at around 2164 and 3745 cm −1 are due to the presence of OH stretching mode of adsorbed water molecules. [ 55,56 ] Figure 4b shows the FTIR spectra of biocomposites (MfSrBG 1–MfSrBG 4) after 14 days of SBF treatment. The fresh bands are observed at 557, 873, 1407, and 3749 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

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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%

Section: Resultsmentioning

confidence: 99%

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

et al. 2020

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“…The sharpness of these bands is correlated to the high degree of crystallinity of MnFe 2 O 4 nanostructures. A broad vibration band at 3449 and 3421 cm −1 are associated with the O-H stretching vibration of the adsorbed water molecules indicating higher amount of surface OH [33,34]. A small band at 1383 cm (Fig.…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir) Studiesmentioning

confidence: 95%

“…Heat treatment would have also caused agglomeration, resulting in bigger grains. This is a typical characteristic feature of spinel ferrites [33,35]. By analyzing both the samples, sample prepared using PF act as better surfactant than sample prepared using WF.…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir) Studiesmentioning

confidence: 99%

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

Jacintha

Umapathy

Neeraja³

et al. 2017

J Nanostruct Chem

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Nanosized manganese ferrite (MnFe 2 O 4 ) particles were prepared by sol-gel method using natural polymers like wheat flour (WF) and potato flour (PF) as surfactants and its structural, morphological, optical and magnetic characteristics were studied by X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), scanning electron microscope (SEM), photoluminescence spectroscopy (PL) and vibration sample magnetometer (VSM). Brunauer-Emmett-Teller (BET) surface area test also performed and the results obtained were discussed. The average crystallite size was found to be 23 and 16 nm for WF/MnFe 2 O 4 and PF/MnFe 2 O 4 samples, respectively. Magnetic hysteresis loops confirmed the super-paramagnetic behavior for both the samples. For oxidation of benzyl alcohol to benzaldehyde, the catalytic activity of MnFe 2 O 4 nanoparticles (NPs) was carried out. Antimicrobial and antifungal activity of WF/MnFe 2 O 4 and PF/MnFe 2 O 4 samples were investigated against two Gram-positive bacteria (Staphylococcus aureus, Streptococcus pneumoniae), two Gram-negative bacteria (Pseudomonas aeruginosa, Salmonella paratyphi) and fungus (Candida albicans) using inhibition zone method. Minimum Inhibitory Concentration (MIC) values also calculated to determine susceptibilities of bacteria to drugs and also to evaluate the activity of new antimicrobial agents. The in vitro cytotoxicity of newly synthesized samples were analyzed by MTT assay against MCF-7, A549 and HaCaT cell lines in a dose-dependent fashion. Among these two samples, sample B (using potato flour) shows better response than sample A (using wheat flour) and both the samples were non-toxic to normal cell line. The concentration required to kill 50% of the cell (IC 50 ) was also calculated. Graphical AbstractMnFe 2 O 4 nanoparticles were synthesized by sol-gel method using natural polymers, wheat flour and potato flour, as surfactant. The as-prepared MnFe 2 O 4 was characterized by XRD, FT-IR, SEM, EDX, PL and VSM analysis. The average crystallite size was found to be 23 and 16 nm for WF/MnFe 2 O 4 and PF/MnFe 2 O 4 samples, respectively. Magnetic hysteresis loops confirmed the super-paramagnetic behavior for both the samples. The catalytic activity of MnFe 2 O 4 nanoparticles (NPs) were carried out for oxidation of benzyl alcohol to benzaldehyde. Biological activities like antimicrobial, antifungal and anticancer activities of the samples were investigated. Among these two samples, PF/MnFe 2 O 4 shows better response than WF/MnFe 2 O 4 and both the samples were non-toxic to normal cell line.

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Preparation and characterization of a novel organic–inorganic hybrid nanostructure: application in synthesis of spirocompounds

2020

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Comparative Study of MnFe2 O 4 Nanoparticles Synthesized by Sol-gel Method with Two Different Surfactants

Cited by 18 publications

References 23 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

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

Preparation and characterization of a novel organic–inorganic hybrid nanostructure: application in synthesis of spirocompounds

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