ZnO nanotubes by template wetting process

Seo, Bo-Hyun; Shaislamov, Ulugbek; Ha, Man Hyo; Kim, S.-W.; Kim, H.-K.; Yang, Bee Lyong

doi:10.1016/j.physe.2006.07.025

Cited by 29 publications

(12 citation statements)

References 13 publications

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“…ZnO is one of the hardest materials in the family of II-VI compound that due to its high bandgap (3.37 eV), great excitation energy (60 mev) and high thermal conductivity have numerous applications in glass, plastic, dyeing, food, cosmetics, and drug industries (1). There are many studies on the synthesis of ZnO nanostructures in various forms (2)(3)(4)(5). Green synthesis is one of the most common methods for the synthesis of zinc oxide nanoparticles (ZnO NPs).…”

Section: Introductionmentioning

confidence: 99%

Cytotoxic and antifungal studies of biosynthesized zinc oxide nanoparticles using extract of Prosopis farcta fruit

Miri

Khatami

Ebrahimy

et al. 2020

Green Chemistry Letters and Reviews

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Zinc oxide nanoparticles (ZnO NPs) are one of the most widely used mineral particles. These nanoparticles are biocompatible and safe which can be used in medical-related industries. In this study, ZnO NPs were synthesized through an aqueous extract of Prosopis farcta fruit. Biosynthesized nanoparticles were identified through Ultraviolet-visible (UV-Vis), Powder X-Ray Diffraction (PXRD), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray analysis (EDX), and Transmission Electron Microscopy (TEM) methods. The results of electron imaging showed that biosynthesized nanoparticles are hexagonal in shape with range size between 40 and 50 nm. Electron spectroscopy results showed that the bandgap of biosynthesized nanoparticles is 3.9 eV. The results of antifungal assay against Candida albicans showed 32-64 and 128-512 µg/ml values for minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC), respectively. Cytotoxicity of nanoparticles against breast cancer cells (MCF7) was performed using WST-1 assay and its IC 50 was obtained 500 μg/ml.

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Section: Introductionmentioning

confidence: 99%

Cytotoxic and antifungal studies of biosynthesized zinc oxide nanoparticles using extract of Prosopis farcta fruit

Miri

Khatami

Ebrahimy

et al. 2020

Green Chemistry Letters and Reviews

View full text Add to dashboard Cite

show abstract

“…Before long Zhang et al reported decomposing Zn(NH 3 ) 4 2+ at 180 °C hydrothermally in ethanol for growing dispersed tubular zinc oxide tubes. Since then, different forms of hydrothermal route, single as well as multistep processes, have been used for ZnO nanotube growth. − Pyrolysis of organic compounds of zinc, vapor phase growth, metal organic chemical vapor deposition (MOCVD), template-assisted multistep processes, and electrochemical deposition were also tried for the growth of zinc oxide nanotubes. She et al developed a two-step process involving electrochemical deposition of ZnO nanorod arrays on conducting glass in an aqueous solution of ZnCl 2 and KCl at 85 °C followed by reversing the potential to give a small positive bias to the nanorod electrode so that the nanorods are electrochemically etched to form nanotubes.…”

mentioning

confidence: 99%

Rapid Growth of Zinc Oxide Nanotube–Nanowire Hybrid Architectures and Their Use in Breast Cancer-Related Volatile Organics Detection

Katwal¹,

Paulose²,

Rusakova³

et al. 2016

Nano Lett.

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A simple direct method for the rapid fabrication of zinc oxide nanotube-nanowire hybrid structure in an environmentally friendly way is described here. Zinc foils were anodized in an aqueous solution of washing soda and baking soda at room temperature in order to obtain the hybrid architecture. At the beginning of the process nanowires were formed on the substrate. The wider nanowires transformed into nanotubes in about a minute and grew in length with time. The morphological integrity was maintained upon heat treatment at temperatures up to the melting point of the substrate (∼400 °C) except that the nanotube wall became porous. The chemiresistor devices fabricated using the heat-treated structure exhibited high response to low-concentration volatile organic compounds that are considered markers for breast cancer. The response was not significantly affected by high humidity or presence of hydrogen, methane, or carbon dioxide. The devices are expected to find use as breath sensors for noninvasive early detection of breast cancer.

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“…The synthesis of ZnO with varying morphologies such as the multipods [1], the wires [2], the tubes [3], and the flowers [4] via the liquid-phase routes, including the chemical deposition [5], the microemulsion [6], the hydrothermal/solvothermal/sol-gel ways [7][8][9], the template-assisted method, and so forth [10], has attracted much attention in recent years owing to the moderate condition and the easy control of the properties of the ZnO products. Many former researchers have focused on the influence of surfactants on the morphology control of ZnO.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Mixing Ways of Reactants on ZnO Morphology

Yang

Liu

2013

Journal of Nanomaterials

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ZnO particles with various morphologies were synthesized by mixing ZnSO4and NaOH solutions at 25°C followed by aging of the suspensions at 40–80°C for 2.0 h, keeping the initial molar ratio of Zn2+to OH−at 1 : 4. ZnO irregular plates were prepared by adding NaOH to ZnSO4whileε-Zn(OH)2rhombic particles were produced using the opposite mixing way. After aging of the slurries at 80°C for 2.0 h, the ZnO plates were kept stable while theε-Zn(OH)2rhombic particles were converted to ZnO whiskers with a length of 1.0–4.0 μm and a diameter of 0.03–0.3 μm. Thermodynamic analysis indicated that the formation of the Zn-bearing precipitates (ZnO orε-Zn(OH)2) at room temperature was connected closely with the solution composition.

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ZnO nanotubes by template wetting process

Cited by 29 publications

References 13 publications

Cytotoxic and antifungal studies of biosynthesized zinc oxide nanoparticles using extract of Prosopis farcta fruit

Cytotoxic and antifungal studies of biosynthesized zinc oxide nanoparticles using extract of Prosopis farcta fruit

Rapid Growth of Zinc Oxide Nanotube–Nanowire Hybrid Architectures and Their Use in Breast Cancer-Related Volatile Organics Detection

Influence of the Mixing Ways of Reactants on ZnO Morphology

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