ZnO nanomaterials: Green synthesis, toxicity evaluation and new insights in biomedical applications

Verma, R. K.; Pathak, Saurabh; Srivastava, Avanish Kumar; Prawer, S.; Tomljenovic‐Hanic, Snjezana

doi:10.1016/j.jallcom.2021.160175

Cited by 176 publications

(82 citation statements)

References 221 publications

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“…Biological synthesis is well-known method to synthesize MNPs by using living organisms like plants and microorganisms (fungi, viruses, bacteria, and actinomycetes) (Verma et al, 2021). The MNPs produced this method are comparatively biocompatible and useful application in the biomedical field.…”

Section: Biological Synthesis Methodsmentioning

confidence: 99%

Review on Recent Progress in Magnetic Nanoparticles: Synthesis, Characterization, and Diverse Applications

et al. 2021

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Diverse applications of nanoparticles (NPs) have revolutionized various sectors in society. In the recent decade, particularly magnetic nanoparticles (MNPs) have gained enormous interest owing to their applications in specialized areas such as medicine, cancer theranostics, biosensing, catalysis, agriculture, and the environment. Controlled surface engineering for the design of multi-functional MNPs is vital for achieving desired application. The MNPs have demonstrated great efficacy as thermoelectric materials, imaging agents, drug delivery vehicles, and biosensors. In the present review, first we have briefly discussed main synthetic methods of MNPs, followed by their characterizations and composition. Then we have discussed the potential applications of MNPs in different with representative examples. At the end, we gave an overview on the current challenges and future prospects of MNPs. This comprehensive review not only provides the mechanistic insight into the synthesis, functionalization, and application of MNPs but also outlines the limits and potential prospects.

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Section: Biological Synthesis Methodsmentioning

confidence: 99%

Review on Recent Progress in Magnetic Nanoparticles: Synthesis, Characterization, and Diverse Applications

et al. 2021

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“…Biological synthesis is a known method for synthesizing MNPs using plants, bacteria, fungi, viruses, and actinomycetes [13]. The green method is often preferred because it produces biocompatible nanoparticles, and it is a sustainable, safe, and clean process.…”

Section: Synthesis Of Magnetic Nanoparticles Used As Biocatalyst Carriers For Biomass Conversionmentioning

confidence: 99%

Magnetic Nanomaterials as Biocatalyst Carriers for Biomass Processing: Immobilization Strategies, Reusability, and Applications

2021

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Environmental concerns, along with oil shortages, have increased industrial interest in biomass conversion to produce biofuels and other valuable chemicals. A green option in biomass processing is the use of enzymes, such as cellulases, hemicellulases, and ligninolytic (laccase and peroxidases), which have outstanding specificity toward their substrates and can be reused if immobilized onto magnetic nanocarriers. Numerous studies report the biocatalysts’ performance after covalent binding or adsorption on differently functionalized magnetic nanoparticles (MNPs). Functionalization strategies of MNPs include silica-based surfaces obtained through a sol–gel process, graphene oxide-based nanocomposites, polymer-coated surfaces, grafting polymer brushes, and others, which have been emphasized in this review of the immobilization and co-immobilization of enzymes used for biomass conversion. Careful analysis of the parameters affecting the performance of enzyme immobilization for new hybrid matrices has enabled us to achieve wider tolerance to thermal or chemical stress by these biosystems during saccharification. Additionally, it has enabled the application of immobilized laccase to remove toxic organic compounds from lignin, among other recent advances addressed here related to the use of reusable magnetic carriers for bioderived chemical manufacturing.

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“…The type of surfactant and its quantity significantly affect the structure and stability of the AMFs as demonstrated by Petrenko et al through small-angle neutron scattering (SANS) studies [27]. AMFs have generated substantial interest due to their biomedical applications such as biosensing, antibacterial activities, magnetic fluid hyperthermia treatment, magnetic resonance imaging (MRI) targeted drug delivery, cell separation, and bioimaging application [28][29][30]. AMFs present many advantages such as their low toxicity, excellent temperature, chemical stability, biocompatibility, and superparamagnetic (SPM) nature, which makes them significantly desired material [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis, Static, and Dynamic Magnetic Characteristics of Varying Size Double-Surfactant-Coated Mesoscopic Magnetic Nanoparticles Dispersed Stable Aqueous Magnetic Fluids

et al. 2021

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The present work reports the synthesis of a stable aqueous magnetic fluid (AMF) by dispersing double-surfactant-coated Fe3O4 magnetic nanoparticles (MNPs) in water using a facile ambient scalable wet chemical route. MNPs do not disperse well in water, resulting in low stability. This was improved by dispersing double-surfactant (oleic acid and sodium oleate)-coated MNPs in water, where cross-linking between the surfactants improves the stability of the AMFs. The stability was probed by rheological measurements and all the AMF samples showed a good long-term stability and stability against a gradient magnetic field. Further, the microwave spin resonance behavior of AMFs was studied in detail by corroborating the experimental results obtained from the ferromagnetic resonance (FMR) technique to theoretical predictions by appropriate fittings. A broad spectrum was perceived for AMFs which indicates strong ferromagnetic characteristics. The resonance field shifted to higher magnetic field values with the decrease in particle size as larger-size MNPs magnetize and demagnetize more easily since their magnetic spins can align in the field direction more definitely. The FMR spectra was fitted to obtain various spin resonance parameters. The asymmetric shapes of the FMR spectra were observed with a decrease in particle sizes, which indicates an increase in relaxation time. The relaxation time increased with a decrease in particle sizes (sample A to D) from 37.2779 ps to 42.8301 ps. Further, a detailed investigation of the structural, morphological, and dc magnetic properties of the AMF samples was performed. Room temperature dc magnetic measurements confirmed the superparamagnetic (SPM) characteristics of the AMF and the M-H plot for each sample was fitted with a Langevin function to obtain the domain magnetization, permeability, and hydrodynamic diameter of the MNPs. The saturation magnetization and coercivity of the AMF samples increased with the increase in dispersed MNPs’ size of the samples. The improvement in the stability and magnetic characteristics makes AMFs suitable candidates for various biomedical applications such as drug delivery, magnetic fluid hyperthermia, and biomedicines.

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ZnO nanomaterials: Green synthesis, toxicity evaluation and new insights in biomedical applications

Cited by 176 publications

References 221 publications

Review on Recent Progress in Magnetic Nanoparticles: Synthesis, Characterization, and Diverse Applications

Review on Recent Progress in Magnetic Nanoparticles: Synthesis, Characterization, and Diverse Applications

Magnetic Nanomaterials as Biocatalyst Carriers for Biomass Processing: Immobilization Strategies, Reusability, and Applications

Facile Synthesis, Static, and Dynamic Magnetic Characteristics of Varying Size Double-Surfactant-Coated Mesoscopic Magnetic Nanoparticles Dispersed Stable Aqueous Magnetic Fluids

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