Biosynthesis Of Iron Nanoparticles Research Articles

Biosynthesis of Iron Nanoparticles (Fe NPs), and their Antibacterial Activity

Our ongoing research involves the synthesis of iron nanoparticles through a multi-step procedure that includes intricate processes resulting in the disruption of the bonds between the fundamental components of the oyster shell. As a result, we successfully extract iron nanoparticles from oyster shell powder. The obtained iron nanoparticles were characterized using X-ray Diffraction Analysis (XRD), Scanning Electron Microscopy (SEM), and FTIR-Based Analysis. These techniques confirmed that the nanoparticles possess the standard properties and meet the optimal specifications necessary for their function as an antibiotic to suppress bacterial action. Objective: Our research aims to biologically generate iron nanoparticles from oyster shells, meeting conventional standards that enable them to function as antibiotics. Methods: Our research employs a method for producing iron nanoparticles that involves a series of processes combined with the addition of chemicals that disrupt the bonds between the fundamental constituents of the oyster shell. This shell is first purified and then ground into a powder. Results And Characterization: The results were obtained using the SPSS statistical program, and the size of the iron particles was determined using the XRD crystallite (grain) calculator, specifically the Scherrer Equation. The characteristics acquired from the steps involving Fe NPs in our ongoing study are confirmed based on the measurements conducted using X-ray Diffraction Analysis (XRD), Scanning Electron Microscopy (SEM), and FTIR-Based Analysis. These measurements indicate that the particles have a satisfactory size range of 30-100 nanometers.Conclusion: We conclude from our current study that there are no significant differences between the number of patients and the three stages type that recorded through this periodic time, even if there is a difference in age and gender.

Biosynthesis of Iron Nanoparticles (Fe NPs), and their Antibacterial Activity

Our ongoing research involves the synthesis of iron nanoparticles through a multi-step procedure that includes intricate processes resulting in the disruption of the bonds between the fundamental components of the oyster shell. As a result, we successfully extract iron nanoparticles from oyster shell powder. The obtained iron nanoparticles were characterized using X-ray Diffraction Analysis (XRD), Scanning Electron Microscopy (SEM), and FTIR-Based Analysis. These techniques confirmed that the nanoparticles possess the standard properties and meet the optimal specifications necessary for their function as an antibiotic to suppress bacterial action. Objective: Our research aims to biologically generate iron nanoparticles from oyster shells, meeting conventional standards that enable them to function as antibiotics. Methods: Our research employs a method for producing iron nanoparticles that involves a series of processes combined with the addition of chemicals that disrupt the bonds between the fundamental constituents of the oyster shell. This shell is first purified and then ground into a powder. Results And Characterization: The results were obtained using the SPSS statistical program, and the size of the iron particles was determined using the XRD crystallite (grain) calculator, specifically the Scherrer Equation. The characteristics acquired from the steps involving Fe NPs in our ongoing study are confirmed based on the measurements conducted using X-ray Diffraction Analysis (XRD), Scanning Electron Microscopy (SEM), and FTIR-Based Analysis. These measurements indicate that the particles have a satisfactory size range of 30-100 nanometers.Conclusion: We conclude from our current study that there are no significant differences between the number of patients and the three stages type that recorded through this periodic time, even if there is a difference in age and gender.

Biosynthesis of Iron Nanoparticles from Spinacia Oleracea and its Application in Wastewater Treatment

Water quality and purification issues may be resolved with the aid of "nanotechnology." Due to their prompt responsiveness and effectiveness in eradicating contaminants, along with their capacity to tackle groundwater issues by implementing a permeable reactive barrier utilizing zero-valent iron, zero-valent iron nanoparticles find extensive application in environmental remediation. These nanoparticles, containing zero-valent iron, were produced by synthesizing a metal salt solution with an extract obtained from Spinacia oleracea leaves. In this current study, the plant extract was mixed with a metal salt solution at a predetermined ratio to generate zero-valent iron nanoparticles (FeNP) either at room temperature or via the hydrothermal method. Phase-contrast microscopy and UV-visible spectroscopy were employed to scrutinize the nanoparticles generated. To our knowledge, this study represents the initial exploration of the efficacy of zero-valent iron nanoparticles derived from Spinacia oleracea leaf extract for treating municipal wastewater. The focus is particularly on assessing their impact on BOD and COD parameters.

Biosynthesis of iron nanoparticles using brown algae Spatoglossum asperum and its antioxidant and anticancer activities through in vitro and in silico studies

Green synthesized metal nanoparticles play a significant role in biomedical applications. This investigation focused on eco-friendly synthesized iron nanoparticles using marine brown algae Spatoglossum asperum which was evaluated for its anticancer and free radical scavenging activity against glioblastoma. The formation of iron nanoparticles confirmed the surface plasmon resonance (SPR) peak at 400 nm by UV visible Spectrum. X-ray diffraction spectroscopy analysis confirmed the crystalline structure of iron nanoparticles. Fourier Transform Infrared spectroscopy analysis was used to identify the functional groups in the algae extract that are involved in the ferrous ion oxidation into iron nanoparticles (Fe3O4NPs). Scanning electron microscope images indicated that the produced nanoparticles were spherical and 16 nm in size, as had been predicted. The S. asperum-mediated Fe3O4NP has shown potential antioxidant activities against 2,2-diphenyl-1-picrylhydrayl and H2O2 activity and its scavenging inhibition was 80.13% and 62.21% determined at 50 µg/mL. The anticancer activity of the synthesized Fe3O4NP against human glioblastoma cells (LN-18) was analyzed and the Fe3O4NPs half inhibitory concentration was found to be 19.24 µg/mL. The findings of the investigation evaluated the binding affinities of different proteins expressed in glioblastoma with bioactive compounds in the S. asperum by performing molecular docking by autodock vina version 4.2. The results of the present investigation revealed that S. asperum-mediated iron oxide nanoparticles exhibited antioxidant potential and effectively suppressed the proliferation of glioblastoma cancer cells.

Biosynthesis of Iron Nanoparticles from Pleurotus florida and its Antimicrobial Activity against Selected Human Pathogens

In the present investigation, iron nanoparticles were synthesized by using mushroom extract. The production of iron nanoparticles from P. florida was initially confirmed by color changes from brown to dark brown within 30 min at 60° and further characterized by Ultraviolet-Visible spectroscopy and scanning electron microscope with Edax. The biosynthesized iron nanoparticles were subjected to antimicrobial activities and showed higher zone of inhibition against Candida glabrata followed by Micrococcus mucilaginosus, Pseudomonas aeruginosa, Candida albicans, Klebsiella terrigena, K. pneumoniae, Escherichia coli, Candida sp., Bacillus cereus and Staphylococcus aureus. This extract was confirmed as effective against microorganisms which was well comparable with standard antibiotics. The present study has recommended that iron nanoparticles from mushrooms have great potential to act as safe alternative to antibiotics to fight the challenges of drug discovery.

Biosynthesis of iron nanoparticles using Ageratum conyzoides extracts, their antimicrobial and photocatalytic activity

Metallic nanoparticles synthesized using aqueous plant extracts are environment-friendly, biocompatible, and highly stable. The aim of this study was to synthesize iron nanoparticles using aqueous Ageratum conyzoides extracts and evaluating their antimicrobial and photocatalytic properties. The particles were analysed using UV–Vis spectrophotometer, FT-IR Spectrophotometer, X-ray diffractometer and Scanning electron microscope. GC–MS profile of the extracts revealed presence of secondary metabolites which were further quantified to determine the total phenolic and total flavonoids content of the extracts. The antibacterial activity of the plant extract and the synthesized iron oxide nanoparticles was evaluated against five microorganisms using agar well diffusion method. Iron nanoparticles synthesized in a one step process observed using visible spectra and the functional groups present such as C=O were identified from IR spectrum. SEM–EDX profile identified presence of iron, oxygen, chlorine, calcium in the particles while XRD data revealed the particles synthesized were composed oxides of iron which had moderate activity against the selected microorganisms as compared to the antibiotic ciprofloxacin. The particles were able to photocatalytic degrade methylene blue with a degradation efficiency of 92%. The results obtained in this study confirms that Ageratum conyzoides can play an important role in the bioreduction of Fe ions to FeNPs which have moderate activity against microorganisms and can act as photocatalyst to degrade methylene blue.

Biosynthesis of iron nanoparticles using Trigonella foenum-graecum seed extract for photocatalytic methyl orange dye degradation and antibacterial applications

Trigonella foenum-graecum is the source of various biological and chemical constituents with a wide area of applications, especially in the treatment/prevention of diabetes and other chronic diseases such as cancer. Multiple biological and organic moieties in the aqueous or the organic phase of Trigonella foenum-graecum carry soft reduction properties to reduce the metal cations to nanoparticles. In this investigation, the Trigonella foenum-graecum was found in the seed extract for the first time in an aqueous medium. We successfully synthesized zero-valent iron nanoparticles (Fe0) (ZV-Fe NPs) and stabilized these nanoparticles in an aqueous medium. The stabilization mechanism of Fe NPs by Trigonella foenum-graecum in an aqueous extract was investigated. Further, Fe NPs were characterized by UV–visible spectrometry, X-ray diffraction (XRD), thermogravimetric analysis - derivative thermo-gravimetric (TGA/DTG), magnetization, Fourier transform infrared (FTIR) spectroscopy and transmission electron microscopy (TEM) images. The size of the nanoparticles, calculated using the Debye-Scherer equation and TEM, was found to be approximately 11 nm with the highest particle distribution number. Fe NPs are very effective for methyl orange dye degradation under UV light following pseudo first-order kinetics, and the rate constant kapp was found to be 0.025 min−1. Furthermore, Fe NPs were applied to check the antibacterial activities with microorganisms such as gram-negative E. coli and gram-positive S. aureus. The Minimum Inhibitory Concentration (MIC) of Fe NPs for E. coli and S. aureus was calculated as 32 μg/mL and 64 μg/mL, respectively.

Biosynthesis of iron nanoparticles by sulphate reducing bacteria and its application in remediating chromium from water

Biosynthesis of iron nanoparticles by sulphate reducing bacteria and its application in remediating chromium from water

Studying antioxidant, anti-inflammatory activities and antimicrobial of Iron nanoparticles biosynthesized from water extract of Mentha pulegium L

Biosynthesis of Iron nanoparticles from Mentha pulegium L by simple method by using waterextract of Mentha pulegium L. The iron nanoparticles characterized by UV-visiblespectroscopy, (FTIR) Fourier transform infrared spectroscopy, XRD and Scanning electronmicroscopy (SEM). The biological activity evaluation by anti-inflammatory and anti oxidantusing evaluated in vitro 2,2-diphenyl-1- picrylhydrazyl (DPPH) assay, ABTS radicalscavenging assay assay Iron chelating activity assay . The results also revealed that the waterextract of Mentha pulegium L and its iron nanoparticles represented the most potent in vitroantioxidant effect. Iron nanoparticles inhibited the growth of bacterial and fungal, theseresults suggested that iron nano particle could be an interesting to control pathogenic microorganisms.

Biosynthesis of iron nanoparticles and their application in removing phosphorus from aqueous solutions

ABSTRACTThis paper reports the biosynthesis of nanoscale zero-valent iron (nZVI) using the extracts of Shirazi thyme leaf (Th-nZVI) and pistachio green hulls (P-nZVI). Scanning electron microscopy verified the successful synthesis of the poorly crystalline nZVI with a spherical shape and diameter in the range of 40–70 nm. According to X-ray diffraction and Fourier transform infrared spectroscope analyses, the synthesised nZVI were composed of iron oxides nanoparticles and ployphenol obtained from Shirazi thyme leaf and pistachio green hulls extracts acting as both reducing and capping agents. The phosphorus removal efficiency of Th-nZVI and P-nZVI increased with time and reached equilibrium at about 4 and 2h, respectively. Sorption of phosphorus on both sorbents was observed to be pH-dependent with maximum phosphorus removal occurring in the pH range of 2–5. Langmuir, Freundlich, Redlich–Peterson, and Temkin models were used to describe phosphorus sorption at pH 5 and maximum sorption capacity for Th-nZVI and P-nZVI was about 40.52 and 29.33 mg g−1, respectively. Correlation coefficient (R2) and standard errors of estimate showed that the Elovich model was better than other models at describing the kinetic data. These results suggested that the synthesised nZVI with Shirazi thyme leaf and pistachio green hulls extracts could be employed as an efficient sorbent for the remediation of phosphorus from contaminated water sources.

Biosynthesis of Iron Nanoparticles Using Tie Guanyin Tea Extract for Degradation of Bromothymol Blue

Facile synthesis of zero-valent iron nanoparticles has been developed using Tie Guanyin tea extract as reducing and stabilizing agent. The characterization carried out by UV-Vis, SEM, TEM, XRD, and FTIR techniques has identified the successful synthesis of the zero-valent iron nanoparticles. It is evident from the TEM result that spherical zero-valent iron nanoparticles with average size of 6.58±0.76 nm have been obtained through biological method in this study. FTIR spectrum demonstrates that the polyphenols play an important role in the synthetic process. Diffraction peak at 2θ of 44.9° and 49.1° in XRD spectrum explains the existence of the iron nanoparticles. Additionally, effect of concentration of iron nanoparticles and concentration of bromothymol blue on the kinetic rate constants during the degradation process was studied.

Rapid, Low-Cost, and Ecofriendly Approach for Iron Nanoparticle Synthesis Using Aspergillus oryzae TFR9

Development of reliable and ecofriendly green approach for synthesis of metallic nanoparticles biologically is an important step in the field of application of nanoscience and nanotechnology. The present paper reports the green approach for iron nanoparticle synthesis using Aspergillus oryzae TFR9 using FeCl3 as a precursor metal salt. Valid characterization techniques employed for biosynthesized iron nanoparticles including dynamic light scattering (DLS), transmission electron microscopy (TEM), and high resolution-transmission electron microscopy (HR-TEM) for morphological study. X-ray energy dispersive spectroscopy (EDS) spectrum confirmed the presence of elemental iron signal in high percentage. Apart from ecofriendliness and easy availability, low-cost biomass production will be more advantageous when compared to other chemical methods. Biosynthesis of iron nanoparticles using fungus has greater commercial viability that it may be used in agriculture, biomedicals and engineering sector.