Metal oxide/polymer nanocomposites: A review on recent advances in fabrication and applications

Zadehnazari, Amin

doi:10.1080/25740881.2022.2129387

Cited by 16 publications

(4 citation statements)

References 337 publications

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“…Nanotechnology is a new scientific technology that could provide a cost-effective solution to some of the most challenging environmental problems, as it is applied in numerous fields such as industry, biomedicine, and even agriculture 12 . Metal oxide nanoparticles have received much attention and have been widely produced in recent years 33 . Investigators have shed light on the general advantages of nanomaterials, recommending their safe application in pesticide production as an application of nanotechnology that will be useful to meet targeted delivery of pesticides.…”

Section: Resultsmentioning

confidence: 99%

Efficacy of alumina nanoparticles as a controllable tool for mortality and biochemical parameters of Culex pipiens

El‑Barkey,

Nassar,

El‑Khawaga

et al. 2023

Sci Rep

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Mosquitoes still pose a clear risk to human and animal health. Recently, nanomaterials have been considered one of the cost-effective solutions to this problem. Therefore, alumina nanoparticles (Al) were synthesized using an auto-combustion method, followed by calcination at 600 and 800 °C. Glucose (G) and sucrose (Su) were used as fuels and the combustion was performed at pH 2, 7, and 10. The as-synthesized Al2O3 nanoparticles were characterized by XRD, FTIR, SEM, and TEM. Alumina nanoparticles prepared using G and Su fuels at pH 7 and 800 °C (Al-G7-800 and Al-Su7-800) have crystallite sizes of 3.9 and 4.05 nm, respectively. While the samples (Al-G7-600 and Al-Su7-600) synthesized at pH 7 and 600 °C were amorphous. The prepared alumina nanoparticles were applied to the larval and pupal stages of Culex pipiens. The results showed that alumina nanoparticles cause higher mortality in the 1st larval instar than in all other larval instars and pupal stages of Culex pipiens after treatment at a high concentration of 200 ppm. Additionally, the larval duration after treatment with LC50 concentrations of alumina (Al-G7-800 and Al-Su7-800) was 31.7 and 23.6 days, respectively, compared to the control (13.3 days). The recorded data found that the content of glutathione-S-transferase, alkaline/acid phosphatase, β/α-esterase, and total protein were altered upon treatment with the LC50 concentration of alumina (Al-G7-800) nanoparticles. Based on these findings, alumina nanoparticles are a promising candidate as a potential weapon to control pests and mosquitoes.

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Section: Resultsmentioning

confidence: 99%

Efficacy of alumina nanoparticles as a controllable tool for mortality and biochemical parameters of Culex pipiens

El‑Barkey,

Nassar,

El‑Khawaga

et al. 2023

Sci Rep

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“…SPIONs, as a commonly found type of inorganic nanoparticle, have been increasingly studied due to their superparamagnetic features and excellent safety profile. , SPIONs have been utilized in various applications such as magnetic resonance imaging, drug delivery, magnetic separation, and hyperthermia treatments. , In addition, they have also been employed to facilitate the decomposition of endogenous hydrogen peroxide (H 2 O 2 ) into O 2 through the Fenton reaction. , The utilization of synthetic organic polymer ligands to modify the structure of SPIONs has presented promising possibilities for developing customized nanomedicine, which can be effectively applied in the field of biomedicine. , The combination of organic/SPIONs nanosystems offers a plethora of benefits, including the ability to leverage the dominant features of SPIONs for MR imaging-guided therapy and self-supplying oxygen. Additionally, these nanosystems possess superiorities afforded by polymer ligands, such as improved stability, loading efficiency, targeting effect, and enhanced cellular uptake.…”

Section: Introductionmentioning

confidence: 99%

“…32,33 The utilization of synthetic organic polymer ligands to modify the structure of SPIONs has presented promising possibilities for developing customized nanomedicine, which can be effectively applied in the field of biomedicine. 34,35 The combination of organic/SPIONs nanosystems offers a plethora of benefits, including the ability to leverage the dominant features of SPIONs for MR imagingguided therapy and self-supplying oxygen. Additionally, these nanosystems possess superiorities afforded by polymer ligands, such as improved stability, loading efficiency, targeting effect, and enhanced cellular uptake.…”

Section: Introductionmentioning

confidence: 99%

Oxygen-Generating Organic/Inorganic Self-Assembled Nanocolloids for Tumor-Activated Dual-Model Imaging-Guided Photodynamic Therapy

Fu,

Jang,

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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Tumor phototheranostics is usually compromised by the hypoxic tumor microenvironment and poor theranostic efficiency. The interplay between organic polymers and inorganic nanoparticles in novel nanocomposites has proven to be advantageous, overcoming previous limitations and harnessing their full potential through activation via the tumor microenvironment. This study successfully fabricated hypoxia-activated nanocolloids called HOISNDs through a process of self-assembly involving superparamagnetic iron oxide nanoparticles (SPIONs) and an organic polymer ligand called tetrakis(4-carboxyphenyl) porphyrin (TCPP)-engineered organic polymer ligand [methoxy poly(ethyleneglycol)-block-poly(dopamine-ethylenediamine-conjugated-4-nitrobenzyl chloroformate)-l-glutamate, mPEG-b-P(Dopa-EDA-co-NBCF)LG-TCPP)]. The SPIONs act as an oxygen generator to overcome the challenges posed by hypoxic tumors and enable the use of hypoxic-activatable MR/fluorescence dual-modal imaging-guided photodynamic therapy (PDT). The colloid stability of these HOISNDs proved to be exceptional in diverse biomimetic environments. Furthermore, they not only augment T2-weighted contrast capability as an MRI contrast agent but also function as an oxygen-producing device to amplify the generation and release of reactive oxygen species (ROS). The HOISNDs can significantly target to tumor sites through the enhanced permeability and retention (EPR) effect with prolonged blood circulation time and subsequently are effectively endocytosed into a hypoxic intracellular environment that “turn on” the imaging function and photodynamic activity. Moreover, HOISNDs possess the ability to effectively decompose naturally occurring H2O2 into oxygen (O2) within the tumor utilizing the Fenton reaction. This method can mitigate the impact of hypoxia on oxygen-dependent PDT. The outcomes of in vivo diagnostic and therapeutic evaluations indicated that HOISNDs are a highly promising tool for dual-model imaging-guided cancer theranosis by ameliorating hypoxic conditions and augmenting PDT efficiency.

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“…In recent years, researchers have discovered that the incorporation of inorganic nanostructures into polymer matrices can effectively enhance the insulation performance of polymers [16][17][18][19][20][21]. Studies by Jain have explored the crystallization behavior of PP/SiO 2 composites prepared through solid-state and in-situ methods, indicating that in-situ synthesized nanostructured SiO 2 particles act as heterogeneous nucleating agents [22].…”

Section: Introductionmentioning

confidence: 99%

Space Charge Characteristics and Breakdown Properties of Nanostructured SiO2/PP Composites

et al. 2023

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Polypropylene (PP) has gained attention in the industry as an environmentally friendly material. However, its electrical properties are compromised due to space charge accumulation during operation, limiting its application in high-voltage DC cable insulation. This study investigates the effect and mechanism of SiO2 with a DDS surface hydrophobic treatment on space charge suppression and the electrical properties of PP composites. The PP matrix was doped with SiO2 nanostructures, both with a DDS surface hydrophobic treatment and untreated as a control group. The functional group structure and dispersion of nanostructured SiO2 in the matrix were characterized. The findings reveal that the incorporation of SiO2 nanostructures effectively mitigates charge accumulation in PP composites. However, a high concentration of unsurfaced nanostructures tends to agglomerate, resulting in inadequate space charge suppression and a diminished DC breakdown field strength. Nonetheless, surface treatment improves the dispersion of SiO2 within the matrix. Notably, the composite containing 1.0 wt% of surface hydrophobic SiO2 exhibits the least space charge accumulation. Compared to the base material PP, the average charge density is reduced by 83.9% after the 1800 s short-circuit discharges. Moreover, its DC breakdown field strength reaches 3.45 × 108 V/m, surpassing pure PP by 19.4% and untreated SiO2/PP composites of the same proportion by 24.0%.

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Metal oxide/polymer nanocomposites: A review on recent advances in fabrication and applications

Cited by 16 publications

References 337 publications

Efficacy of alumina nanoparticles as a controllable tool for mortality and biochemical parameters of Culex pipiens

Efficacy of alumina nanoparticles as a controllable tool for mortality and biochemical parameters of Culex pipiens

Oxygen-Generating Organic/Inorganic Self-Assembled Nanocolloids for Tumor-Activated Dual-Model Imaging-Guided Photodynamic Therapy

Space Charge Characteristics and Breakdown Properties of Nanostructured SiO2/PP Composites

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