Synthesis of amino acid functionalized Fe3O4 nanoparticles for adsorptive removal of Rhodamine B

Belachew, Neway; Tadesse, Aschalew; Kahsay, Mebrahtu Hagos; Meshesha, Desta Shumuye; Basavaiah, K.

doi:10.1007/s13201-021-01371-y

Cited by 23 publications

(4 citation statements)

References 32 publications

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“…Prepared nanoparticles showed a saturation magnetization equal to 42 emu/g. This value was in close agreement with previous reports for amino acid-coated magnetite nanoparticles [29,30]. In contrast to other biocompatible coatings, amino acids can be considered as one of the promising coatings with lowest adverse effects on the magnetic properties of the magnetite nanoparticles [31,32].…”

Section: Characterization Of Iron Oxide Nanoparticlessupporting

confidence: 93%

A Study of l-Lysine-Stabilized Iron Oxide Nanoparticles (IONPs) on Microalgae Biofilm Formation of Chlorella vulgaris

et al. 2022

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Despite iron-based nanoparticles gaining huge attraction in various field of sciences and technology, their application rises ecological concerns due to lack of studies on their interaction with microbial cells populations and communities, such as biofilms. In this study, Chlorella vulgaris cells were employed as a model of aquatic microalgae to investigate the impacts of l-lysine-coated iron oxide nanoparticles (lys@IONPs) on microalgal growth and biofilm formation. In this regard, C. vulgaris cells were exposed to different concentrations of lys@IONPs and the growth of cells was evaluated by OD600 and biofilm formation was analyzed using crystal violet staining throughout 12 days. It was revealed that low concentration of nanoparticles (< 400 µg/mL) can promote cell growth and biofilm formation. However, higher concentrations have an adverse effect on microalgal communities. It is interesting that microalgal growth and biofilm are concentration- and exposure time-dependent to lys@IONPs. Over long period (~ 12 days) exposure to high concentrations of nanoparticles, cells can adapt with the condition, so growth was raised and biofilm started to develop. Results of the present study could be considered in ecological issues and also bioprocesses using microalgal cells.

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Section: Characterization Of Iron Oxide Nanoparticlessupporting

confidence: 93%

A Study of l-Lysine-Stabilized Iron Oxide Nanoparticles (IONPs) on Microalgae Biofilm Formation of Chlorella vulgaris

et al. 2022

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“…However, the minute sharp peak at 368 nm and 399 nm correspond to the oxide group present in the Fe 3 O 4 NPs and the magnetite presence. In this way, UV-Visible analysis further confirmed the formation of Fe 3 O 4 nanoparticle [31].…”

Section: Uv Visible Spectroscopy Analysismentioning

confidence: 54%

Synthesis, Characterization and In-Vitro Toxicity Assessment of Superparamagnetic Iron Oxide Nanoparticles for Biomedical Applications

Sivalingam¹,

Santhanakrishnan²,

Parthasarathy³

2022

Nano BioMed ENG

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On the growing clinical demands, superparamagnetic iron oxide nanoparticles (SPIONs) have a vital role due to their infinite physical and chemical properties at the nanoscale. The researchers have started to focus more on the magnetite nanoparticle applications with unique shape and size in various filed such as biomedicine, food and environment to synthesize Fe 3 O 4 NP. Here we synthesized SPIONs-Fe 3 O 4 NP successfully by co-precipitation technique. The prepared nanoparticles were characterized using suitable analytical tools for structural, morphological, elemental, optical and thermogravimetric analysis. Moreover, the genotoxicity and hemolysis assay test has been carried out to estimate the toxicity of SPIONs-Fe 3 O 4 NP at various concentrations. The results found that 25 µg/mL concentration of SPIONs-Fe 3 O 4 NP shows good hemocompatibility than other concentrations. The genotoxicity assay was examined in Allium cepa (onion root tips) for chromosomal aberration. Hence, the present study discusses the synthesis characterization, assessing the genotoxicity and hemocompatibility potential for the synthesized Fe 3 O 4 NPs.

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“…We have decided to exploit this strategy further by immobilization of Iridium metal on the surface of tryptophan (AA) grafted Fe 3 O 4 nanoparticles. We anticipate that tryptophan AA anchored on the surface of Fe 3 O 4 will enhance the stability of magnetic nanoparticles towards surface oxidation, and e ciently reduce the agglomeration of iridium nanoparticles (Dhanalakshmi et al 2020;Alaghmandfard and Madaah Hosseini 2021;Belachew et al 2021). The Iridium NPs as photocatalysts for various redox reactions is well known (Babajani and Jamshidi 2019;Dhanalakshmi et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Sustainable magnetically recoverable Iridium-coated Fe3O4 nanoparticles for enhanced catalytic reduction of organic pollutants in water

Diksha

Kaur

Yempally

et al. 2023

Environ Sci Pollut Res

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In the present study, modi ed Fe 3 O 4 nanoparticles were fabricated by surface coating with tryptophan and Iridium by coprecipitation method to afford Fe 3 O 4 @trp@Ir magnetic nanoparticles. As-prepared Fe 3 O 4 @trp@Ir nanoparticles are environmentally benign e cient catalysts for reducing organic pollutants such as 4-nitrophenol (4-NP), 4-nitroaniline (4-NA), and 1-bromo-4-nitrobenzene (1-B-4-NB). The key parameters that affect the catalytic activity like temperature, catalyst loading, and the concentration of reducing agent NaBH 4 were optimized. The obtained results proved that Fe 3 O 4 @trp@Ir is an e cient catalyst for reducing nitroaromatics at ambient temperature with a minimal catalyst loading of 0.0025%. The complete conversion of 4-nitrophenol to 4-aminophenol took only 20 seconds with a minimal catalyst loading of 0.0025% and a rate constant of 0.0522 s − 1 . The high catalytic activity factor (1.040 s − 1 mg − 1 ) and high turnover frequency (9 min − 1 ) obtained for Fe 3 O 4 @trp@Ir nanocatalyst highlight the possible synergistic effect of the two metals (Fe and Ir). The visible-light photocatalytic degradation of 4-NP was also investigated in the presence of Fe 3 O 4 @trp@Ir. The photocatalytic degradation of 4-NP by Fe 3 O 4 @trp@Ir is completed in 20 min with 95.15% e ciency, and the rate of photodegradation of 4-NP (0.1507 min − 1 ) is about twice the degradation rate of 4-NP in the dark (0.0755 min − 1 ). The catalyst was recycled and reused for ve cycles without signi cant reduction in the conversion e ciency of the catalyst.

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Synthesis of amino acid functionalized Fe3O4 nanoparticles for adsorptive removal of Rhodamine B

Cited by 23 publications

References 32 publications

A Study of l-Lysine-Stabilized Iron Oxide Nanoparticles (IONPs) on Microalgae Biofilm Formation of Chlorella vulgaris

A Study of l-Lysine-Stabilized Iron Oxide Nanoparticles (IONPs) on Microalgae Biofilm Formation of Chlorella vulgaris

Synthesis, Characterization and In-Vitro Toxicity Assessment of Superparamagnetic Iron Oxide Nanoparticles for Biomedical Applications

Sustainable magnetically recoverable Iridium-coated Fe3O4 nanoparticles for enhanced catalytic reduction of organic pollutants in water

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