Green Synthesis of Iron Oxide Nanoparticles Using Ceratonia Siliqua L. Aqueous Extract: Optimization, Characterization, Stabilization and Evaluation of its Antibacterial Activity Against Gram-Positive and Gram-Negative Bacteria

Demirezen, Derya Aksu; Yılmaz, Şeyda; Yılmaz, Dilek Demirezen; Yildiz, Yalçın Şevki

doi:10.2139/ssrn.4011560

Cited by 2 publications

(2 citation statements)

References 35 publications

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“…Over the years, several studies have investigated the antibacterial effect of carob and its different extracts and showed clear susceptibility of Gram-negative and Gram-positive strains [15,[18][19][20]. In addition, recent studies have combined carob extracts with NPs (i.e., iron oxide and sliver) and reported a pronounced antibacterial activity compared to bulk materials [21,22]. This indicates that carob presents a valuable resource in the search for new antibacterial nano-agents.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Antibacterial Activity of Carob-Mediated Calcium Hydroxide Nanoparticles against Different Aerobic and Anaerobic Bacteria

et al. 2022

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Carob-mediated calcium hydroxide nanoparticles (C-CaOH2 NPs) are a type of NPs, newly developed via a green synthesis method, that have demonstrated good in vitro biocompatibility. However, their antibacterial potential has not yet been explored. Both calcium hydroxide and carob are known for their antibacterial potency as bulk materials; thus, we hypothesized that C-CaOH2 NPs may exhibit promising antibacterial efficacy. This study aimed to examine the antibacterial activity of C-CaOH2 NPs against aerobic and anaerobic strains using zone of inhibition (ZOI), minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) tests. The results showed that the Gram-negative aerobic strains are more susceptible than the Gram-positive stains. The most susceptible bacteria were P. aeruginosa, E. coli, and S. aureus, in that order. Conversely, P. micra and E. faecalis were the least susceptible strains. The best recorded ZOIs were at 100 and 150 mg/mL concentrations in all bacteria, with the greatest diameter (11.7 ± 0.6 mm) exhibited in P. aeruginosa. Moreover, the MICs for aerobes were 3.12 mg/mL, except for E. faecalis (0.78 mg/mL) and K. pneumoniae (1.56 mg/mL). MBCs were 12.5 mg/mL for all except P. aeruginosa (3.12 mg/mL) and K. pneumoniae (6.25 mg/mL). The anaerobic strain P. micra exhibited the highest values for both MIC (15.62 mg/mL) and MBC (31.25 mg/mL). The current investigation revealed that C-CaOH2 NPs have intermediate and dose-dependent antibacterial activity that may have variable biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Investigation of Antibacterial Activity of Carob-Mediated Calcium Hydroxide Nanoparticles against Different Aerobic and Anaerobic Bacteria

et al. 2022

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“…Thus, the economical, scalable, non-toxic and efficient synthesis of Fe3O4 nanoparticles is of great interest for potential applications and fundamental research (Eskandari, 2021;Song, 2018). However, pure Fe3O4 is easily oxidized and easily agglomerates in water (Demirezen, 2022). PEG is usually used as a coating on Fe3O4 as a protective reagent and dispersing agent (Chavan, 2019).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Magnetite (Fe3O4) Nanoparticles by Co-precipitation Method for Removal Rhodamine B in Wastewater

Antarnusa

2022

IJHES

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Fe3O4 coated with PEG has been successfully synthesized using co-precipitation method to reduce RhB. From the XRD results, it can be seen that all samples are Fe3O4 with the highest Miller index at (311). The crystallinity of Fe3O4 was maintained even though PEG was added. From the SEM-TEM analysis, it can be seen that the two samples have a uniform size distribution. Then, PEG can increase the dispersibility of the sample. From the FTIR analysis it was confirmed that there was PEG content in Fe3O4. From the results of the VSM analysis, it was confirmed that the sample has nearly superparamagnetic properties with a small value. Then, Fe3O4 and Fe3O4/PEG were used to remove RhB in water by magnetic separation process. From the results of the study, it was obtained that the optimum absorption occurred in several parameters, namely the initial concentration of RhB at 100 mg/mL, with a pH of 6, the dose of Fe3O4/PEG at 0.8 g/L and a contact time of 40 minutes at room temperature. At this optimum condition, the absorption has a color removal of 31.1%.

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Green Synthesis of Iron Oxide Nanoparticles Using Ceratonia Siliqua L. Aqueous Extract: Optimization, Characterization, Stabilization and Evaluation of its Antibacterial Activity Against Gram-Positive and Gram-Negative Bacteria

Cited by 2 publications

References 35 publications

Investigation of Antibacterial Activity of Carob-Mediated Calcium Hydroxide Nanoparticles against Different Aerobic and Anaerobic Bacteria

Investigation of Antibacterial Activity of Carob-Mediated Calcium Hydroxide Nanoparticles against Different Aerobic and Anaerobic Bacteria

Preparation and Application of Magnetite (Fe3O4) Nanoparticles by Co-precipitation Method for Removal Rhodamine B in Wastewater

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