Effect of <scp>pH</scp> and zeta potential of Pickering stabilizing magnetite nanoparticles on the features of magnetized polystyrene microspheres

El‐Mageed, Ahmed I. A. Abd; Shalan, Ahmed Esmail; Mohamed, Lamiaa A.; Essawy, Hisham; Taha, Fouad; Dyab, Amro K. F.

doi:10.1002/pen.25571

Cited by 17 publications

(11 citation statements)

References 41 publications

(56 reference statements)

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“…Modifying the amount of strain is considerably modest in case of 2D hybrid perovskites compared to the crystalline semiconductors charge transfer layers for the reason that the grade of strain be contingent with the cross-sectional area of the organic cation (Straus and Kagan 2018;Pedesseau et al 2016;Chakraborty and Nag 2020;Miyata et al 2015). Nevertheless, high efficiencies over 20% are generally obtained on the mesoporous TiO 2 layer of varying perovskite compositions (Akin et al 2020a, b;Liu et al 2020a, b;Abd El-Mageed et al 2020). The crystallization of the perovskite film on the mesoporous layer should be very different from the compact layer, although there is no evidence from the previous studies on the interface in the middle of the TiO 2 layer and the perovskite film in both cases.…”

Section: Electron Transport Layermentioning

confidence: 99%

Metal oxide electron transport materials for perovskite solar cells: a review

et al. 2021

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Solar electricity is an unlimited source of sustainable fuels, yet the efficiency of solar cells is limited. The efficiency of perovskite solar cells improved from 3.9% to reach 25.5% in just a few years. Perovskite solar cells are actually viewed as promising by comparison with dye-sensitized solar cells, organic solar cells, and the traditional solar cells made of silicon, GaAs, copper indium gallium selenide (CIGS), and CdTe. Here, we review bare and doped metal oxide electron transport layers in the perovskite solar cells. Charge transfer layers have been found essential to control the performance of perovskite solar cells by tuning carrier extraction, transportation, and recombination. Both electron and hole transport layers should be used for charge separation and transport. TiO 2 and 2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene are considered as the best electron and hole transport layers. Metal oxide materials, either bare or doped with different metals, are stable, cheap, and effective.

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Section: Electron Transport Layermentioning

confidence: 99%

Metal oxide electron transport materials for perovskite solar cells: a review

et al. 2021

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“…On the other hand, a small ζປ value can result in particle aggregation and flocculation due to the van der Waals attractive forces acting upon them. [ 53–55 ] As shown in (Figure 11c,d), ABE@ZIF‐8 has a ζປ of 23.7 mV, and ZIF‐8 has a zeta potential of 27.3 mV.…”

Section: Resultsmentioning

confidence: 97%

Telescopic synthesis and encapsulation of anticancer drugs from Ajuga bracteosa Wall. ex Benth. with zeolitic imidazole framework‐8

Ahanger¹,

Kumar²

2022

Applied Organom Chemis

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Cancer is one of the world's fastest-emerging noncommunicable diseases and one of the major causes of death. Zeolitic imidazolate framework-8 (ZIF-8) is a subclass of metal-organic frameworks made up of organic linkers and inorganic nodes. Responsive nanocarriers with biocompatibility and precise drug release ability, superior stability under physiological conditions, pH responsiveness, and tunable drug release properties have emerged as prospective properties of ZIF-8. Among the different options proposed for cancer treatment, natural products are used to find novel hits, which emerge as one of the most successful methods with no adverse effects. Here, we developed a novel nanoscale ZIF-8 core encapsulated drugs extracted from Ajuga bracteosa extract in its frameworks through a facile and efficient strategy. ZIF-8@ABE NPs show a sixfold improvement in instability compared with that of free ABE. It can internalize the NPs into cells and present targeted effects of inhibition of growth on the human Caucasian lung carcinoma cell line (A549) (adenocarcinoma). The sustained release behavior of ZIF-8@ABE has shown a higher efficacy than the free ABE. We envisage that such a biocompatible and biodegradable delivery system may promote the development and translation of hybrid superstructures into smart and personalized delivery platforms, but the limitations imposed by limited loading capacities have stymied the development of innovative multifunctional drug delivery systems.

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“…[19][20][21] Many solid particles can be used for such purpose, i.e. Laponite [22], Fe3O4 [23,24], SiO2 [25], and ZnO [26]. Pickering emulsion has a number of advantages, including reduced foaming, decreased toxicity, and lower cost due to the absence of classical surfactants [3,20,21].…”

Section: Introductionmentioning

confidence: 99%

High Internal Phase Pickering Emulsions as Template for Lightweight Foam Cement

et al. 2022

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Styrene high internal phase emulsion (HIPE) with 80 vol.% of water as internal phase was prepared using organophilic laponite as Pickering stabilizer. High volumes of HIPE were admixed separately with cement to prepare macroporous polyHIPE-cement composite via heat driven polymerization. Scanning electron microscopy (SEM) confirmed a shift in the morphology of the admixed cement with HIPE upon setting in comparison with the pristine cement. It was also confirmed that the polymeric network of HIPE built up an interconnected network structure incorporating the set cement particles and polyHIPE, which is responsible of the developed macrporosity. The compressive strength of the resulting foamed concrete was reasonable even in presence of high extent of macrporosity as compared to similar composite structures admixed with HIPE stabilized by classical surfactants. Interestingly, the presence of polyHIPE network caused limitation of the shrinkage associated with the setting of the cement particles leading to a decrease in the developed cracks with respect to comparable cement samples prepared in absence of these additives.

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Effect of pH and zeta potential of Pickering stabilizing magnetite nanoparticles on the features of magnetized polystyrene microspheres

Cited by 17 publications

References 41 publications

Metal oxide electron transport materials for perovskite solar cells: a review

Metal oxide electron transport materials for perovskite solar cells: a review

Telescopic synthesis and encapsulation of anticancer drugs from Ajuga bracteosa Wall. ex Benth. with zeolitic imidazole framework‐8

High Internal Phase Pickering Emulsions as Template for Lightweight Foam Cement

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