Green Synthesis Methods of CoFe2O4and Ag-CoFe2O4Nanoparticles Using Hibiscus Extracts and Their Antimicrobial Potential

Gingaşu, Dana; Mîndru, Ioana; Patron, Luminiţa; Calderón-Moreno, José Maria; Mocioiu, Oana Cătălina; Preda, Silviu; Stănică, Nicolae; Sultana, Nasrin; Dobre, Nicoleta; Popa, Marcela; Pîrcălăbioru, Grațiela Grădişteanu; Chifiriuc, Mariana Carmen

doi:10.1155/2016/2106756

Cited by 93 publications

(39 citation statements)

References 33 publications

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“…Along with the plant and leaf extracts, the extracts of flowers, fruits, peels, and seeds have been explored as fuel in combustion process for the synthesis of metal oxides. Gingasu et al., compared the effect of Hibiscus rosa‐sinensis flower and leaf extracts as the fuel in combustion process for the synthesis of CoFe 2 O 4 and Ag‐CoFe 2 O 4 nanoparticles. The crystalline size of the CoFe 2 O 4 particles synthesised using hibiscus flower extract was found to have 10 nm and 18 nm respectively for as synthesised and calcined at 800 °C.…”

Section: Plant Based Renewable Fuels In Combustion Processmentioning

confidence: 99%

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

Vivekanandhan¹

2019

ChemistrySelect

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Metal oxide nanostructures receive great interest due to their unique size and shape dependent physicochemical and functional properties. With the rapid growth of metal oxide nanotechnology, their chemical synthesis processes have become the most promising one due to their simplicity and versatility. Among the various available chemical processes such as sol‐gel, hydrothermal, polyol and precipitation, the combustion process receives significant attention. In particular, the combustion process has been extensively explored for the synthesis of various nanostructured materials including metal oxides, which involves in the exothermic reaction upon thermal heating of precursor chemicals. Recently, the combustion process has been reinvented by using the various renewable resource‐based organic fuels, which receives increasing interest among global researchers. A wide range of plant/ leaf, fruit, flower, seed, peel, latex and tuber extracts along with the plant‐derived products have been explored in combustion process for the synthesis of various metal oxides. Hence, the present review is aimed to focus the recent advances in the combustion process by using renewable fuels for the synthesis of metal oxide nanostructures and also the emerging opportunities.

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Section: Plant Based Renewable Fuels In Combustion Processmentioning

confidence: 99%

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

Vivekanandhan¹

2019

ChemistrySelect

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“…Nanopartikel spinel ferrit mempunyai rumus struktur MFe2O4 (M= Mn 2+, Co 2+, , Fe 2+, , Ni 2+, , Mg 2+ , Cu 2+, , Zn 2+, ) dengan struktur kristal kubik spinel (Iranmanesh et al 2017), memiliki rasio luas permukaan yang besar terhadap volume dan sifat magnetik yang unik seperti koersivitas tinggi, magnetisasi sedang, pemfilteran spin, dan efek domain tunggal. Aplikasi spinel ferrit dari jenis MFe2O4 telah menarik perhatian peneliti selama beberapa dekade, seperti perekaman magnetik, penyimpanan energi magnetik, katalisis, biomedis, dan pengolahan air limbah (Gingasu et al 2016). Di antara nanopartikel magnetik, MnFe2O4 adalah kelompok bahan spinel ferrit lunak dengan luas permukaan yang tinggi, permeabilitas magnetik tinggi, dan ketahanan listrik tinggi (Kafshgari et al 2018).…”

Section: Pendahuluanunclassified

“…Ekstrak tumbuhan mengandung berbagai metabolit termasuk karbohidrat, polisakarida, fenol, asam amino, dan vitamin, yang dapat bertindak sebagai capping agent. Penggunaan ekstrak tumbuhan dalam sintesis dapat mempengaruhi ukuran, bentuk, dan morfologi nanopartikel (Gingasu at al. 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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“…The nanoparticles were suspended in dimethyl sulfoxide (DMSO) to prepare a stock solution of 20 mg/mL concentration. Gingasu et al [22] have shown that DMSO does not show any activity against the test organisms except for Escherichia coli where partial inhibition of its growth was recorded. Agar well diffusion method was used for the antibacterial activity determination.…”

Section: Antimicrobial Studymentioning

confidence: 99%

Synthesis and evaluation of the antimicrobial potentials of cobalt doped- and magnesium ferrite spinel nanoparticles

Ehi-Eromosele¹,

Olugbuyirozz²,

Taiwo³

et al. 2018

Bull. Chem. Soc. Eth.

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The high incidence of infectious disease and increase in the incidence of antibiotic resistance has led to the exploitation of inorganic nanoparticles as novel antimicrobial agents owing to their unique physical and chemical properties. This study reports the synthesis and antibacterial activity of magnesium ferrite (MgFe2O4) and cobalt doped magnesium ferrite (Co0.8Mg0.2Fe2O4) spinel nanoparticles (NPs). The NPs were synthesized using the low temperature combustion synthesis. X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive absorption spectroscopy (EDAX) were used to characterize the synthesized NPs. The synthesized NPs exhibited good antibacterial properties against Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus and Serratia marcescens. None of the nanoparticles induced any microbial inhibition against Micrococcus varians, Aspergillus flavus, Bacillus substilis and Candida. albicans. Co0.8Mg0.2Fe2O4 NPs gave better antibacterial activity with a zone of inhibition of >20 mm against Staphylococcus aureus and Escherichia coli compared to MgFe2O4 NPs. The minimum inhibitory concentration of Co0.8Mg0.2Fe2O4 NPs against Escherichia coli and Staphylococcus aureus was 2500 µg/mL and 1250 µg/mL, respectively. The relatively high antibacterial effect exhibited by Co0.8Mg0.2Fe2O4 nanoparticles on Escherichia coli and Staphylococcus aureus suggests its potentials in the treatment of infections commonly associated with these microorganisms.

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Green Synthesis Methods of CoFe₂O₄and Ag-CoFe₂O₄Nanoparticles Using Hibiscus Extracts and Their Antimicrobial Potential

Cited by 93 publications

References 33 publications

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

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

Synthesis and evaluation of the antimicrobial potentials of cobalt doped- and magnesium ferrite spinel nanoparticles

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