Synthesis, Characterization and Applications of Magnetic Iron Oxide Nanostructures

Khan, Ibrahim; Khalil, Amjad; Khanday, Firdous A.; Shemsi, Ahsan M.; Qurashi, Ahsanulhaq; Siddiqui, Khawar Sohail

doi:10.1007/s13369-017-2835-1

Cited by 35 publications

(8 citation statements)

References 151 publications

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“…The electrochemical development of hematite and magnetite NPs can be achieved by using various sacrificial precursors such as iron foil and their modified sources . The precursors, reaction medium, synthesis temperature, and post-treatment has a paramount effect on the particle size and shape of the final products. − Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) could be helpful in revealing the morphological features of H-NPs and M-NPs and also provide information about the particle size with the support of XRD and other related techniques. The iron oxide NPs exist in different morphologies such as nanorod, granular, spherical, dendrites, core–shell and hollow tubes in addition to conventional quasi round shape morphology.…”

Section: Protocols For Synthesizing Magnetite and Hematite Nanopartic...mentioning

confidence: 99%

Hematite and Magnetite Nanostructures for Green and Sustainable Energy Harnessing and Environmental Pollution Control: A Review

Ashraf

Khan

Usman

et al. 2019

Chem. Res. Toxicol.

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121

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The optoelectrical and magnetic characteristics of naturally existing iron-based nanostructures, especially hematite and magnetite nanoparticles (H-NPs and M-NPs), gained significant research interest in various applications, recently. The main purpose of this Review is to provide an overview of the utilization of H-NPs and M-NPs in various environmental remediation. Iron-based NPs are extensively explored to generate green energy from environmental friendly processes such as water splitting and CO2 conversion to hydrogen and low molecular weight hydrocarbons, respectively. The latter part of the Review provided a critical overview to use H-NPs and M-NPs for the detection and decontamination of inorganic and organic contaminants to counter the environmental pollution and toxicity challenge, which could ensure environmental sustainability and hygiene. Some of the future perspectives are comprehensively presented in the final portion of the script, optimiztically, and it is supported by some relevant literature surveys to predict the possible routes of H-NPs and M-NPs modifications that could enable researchers to use these NPs in more advanced environmental applications. The literature collection and discussion on the critical assessment of reserving the environmental sustainability challenges provided in this Review will be useful not only for experienced researchers but also for novices in the field.

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Section: Protocols For Synthesizing Magnetite and Hematite Nanopartic...mentioning

confidence: 99%

Hematite and Magnetite Nanostructures for Green and Sustainable Energy Harnessing and Environmental Pollution Control: A Review

Ashraf

Khan

Usman

et al. 2019

Chem. Res. Toxicol.

Self Cite

121

View full text Add to dashboard Cite

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“…In addition, strict specifications of stoichiometric ratios can produce high-purity products. [32,45] The fabrication of Mn-based nanozymes employing the co-precipitation method was widely reported. For example, Qian et al have developed sheet-like MnO x on the surface of poly(lactic-co-glycolic acid)@polydopamine (PP) nanoparticles by co-precipitation using KMnO 4 as a raw material (Figure 2c).…”

Section: Chemical Co-precipitationmentioning

confidence: 99%

“…In addition, strict specifications of stoichiometric ratios can produce high‐purity products. [ 32,45 ] The fabrication of Mn‐based nanozymes employing the co‐precipitation method was widely reported. For example, Qian et al.…”

Section: Preparation Of Mn‐based Nanozymesmentioning

confidence: 99%

Manganese‐Based Nanozymes: Preparation, Catalytic Mechanisms, and Biomedical Applications

Tang

Zhang

Sun

et al. 2022

Adv Healthcare Materials

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Manganese (Mn) has attracted widespread attention due to its low-cost, nontoxicity, and valence-rich transition. Various Mn-based nanomaterials have sprung up and are employed in diverse fields, particularly Mn-based nanozymes, which combine the physicochemical properties of Mn-based nanomaterials with the catalytic activity of natural enzymes, and are attracting a surge of research, especially in the field of biomedical research. In this review, the typical preparation strategies, catalytic mechanisms, advances and perspectives of Mn-based nanozymes for biomedical applications are systematically summarized. The application of Mn-based nanozymes in tumor therapy and sensing detection, together with an overview of their mechanism of action is highlighted. Finally, the prospective directions of Mn-based nanozymes from five perspectives: innovation, activity enhancement, selectivity, biocompatibility, and application broadening are discussed.

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“…To date, numerous methods have been used to produce iron oxide nanostructures [ 14 ]. Nanostructures with different morphologies of these oxides have already been reported [ 15 , 16 ]. Among these morphologies, nanorod-like shape morphology has been the specific focus of interest and attention because of its regular geometry [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

In vitro and in vivo MRI imaging and photothermal therapeutic properties of Hematite (α-Fe2O3) Nanorods

Gulzar

Ayoub

Mir

et al. 2022

J Mater Sci: Mater Med

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Herein we report synthesis of hematite (α-Fe2O3) nanorods by calcinating hydrothermally synthesized goethite nanorods at 5000C. The structural, optical and MRI imaging guided cancer therapeutic properties of fabricated nanorods have been discussed in this manscript. FESEM and TEM imaging techniques were used to confirm the nanorod like morphology of as prepared materials. As we know that Fe2O3 nanorods with size in the range of 25–30 nm exhibit super magnetism. After coating with the PEG, the as prepared nanorods can be used as T2 MR imaging contrast agents. An excellent T2 MRI contrast of 38.763 mM–1s–1 achieved which is highest reported so far for α-Fe2O3. Besides the as prepared nanorods display an excellent photothermal conversion efficiency of 39.5% thus acts as an excellent photothermal therapeutic agent. Thus, we envision the idea of testing our nanorods for photothermal therapy and MR imaging application both in vitro and in vivo, achieving an excellent T2 MRI contrast and photothermal therapy effect with as prepared PEGylated nanorods.

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Synthesis, Characterization and Applications of Magnetic Iron Oxide Nanostructures

Cited by 35 publications

References 151 publications

Hematite and Magnetite Nanostructures for Green and Sustainable Energy Harnessing and Environmental Pollution Control: A Review

Hematite and Magnetite Nanostructures for Green and Sustainable Energy Harnessing and Environmental Pollution Control: A Review

Manganese‐Based Nanozymes: Preparation, Catalytic Mechanisms, and Biomedical Applications

In vitro and in vivo MRI imaging and photothermal therapeutic properties of Hematite (α-Fe2O3) Nanorods

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