Property of Zinc Oxide (Zno) Nanostructures Potential for Biomedical System and Its Common Growth Mechanism

Guo, Kelvii Wei

doi:10.15406/jabb.2017.02.00046

Cited by 14 publications

(5 citation statements)

References 85 publications

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“…In other words, increasing of these parameters resulted in larger nanostructures. This is in agreement with the previous reports of nanostructure growth in VLS method [48][49][50][51]. For ZnO nanostructure growth in VLS method, the process starts with reduction of ZnO to Zn vapor in presence of graphite particles at a high temperature [52,53], which is further transported to relatively lower temperature deposition zone by an inert gas.…”

Section: Growth Of Zno Nano-cactus On Electrospun Fiberssupporting

confidence: 92%

'Nano-on-Micro' Approach Enables Synthesis of ZnO Nano-Cactus for Gas Sensing Applications

Islam,

Srivastava,

Basavaraja

et al. 2020

SSRN Journal

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We report a "nano-on-micro" approach for growth of a cactus-like nanostructures of zinc oxide (ZnO) for gas sensing application. We use electrospun polymeric fibers doped with catalyst nanoparticles as the template and employ a vapor-liquid-solid (VLS) method to growth of the ZnO nanostructures. Controlling the processing variables in the VLS process yields to growth of needle-like nanostructures of ZnO around the electrospun fibers, which resembles the needles of a cactus. The ZnO nano-cactus features wurtzite ZnO like crystal structure. We investigate the gas sensing capabilities of the ZnO nano-cactus. The ZnO nanostructures show high sensitivity and selectivity for sensing of ethanol gas. The "nano-on-micro" approach enables single step deposition of nanomaterials between electrodes during synthesis, which eliminates post-synthesis steps, and thus demonstrates better compatibility towards device integration for metal oxide nanostructures.

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Section: Growth Of Zno Nano-cactus On Electrospun Fiberssupporting

confidence: 92%

'Nano-on-Micro' Approach Enables Synthesis of ZnO Nano-Cactus for Gas Sensing Applications

Islam,

Srivastava,

Basavaraja

et al. 2020

SSRN Journal

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“…ZnO is environmentally friendly and meets the requirements of lead-free green technologies. ZnO nanostructures have been reported as metal-based medications that can be used in biomedical applications because of their biocompatibility [ 1 , 2 ]. However, the field of nano-energy harvesting is part of diverse areas of nanotechnology aimed at providing sufficient and sustainable small-scale power solutions, especially with emerging trends in the technology of self-powered devices [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Controlled Growth of Semiconducting ZnO Nanorods for Piezoelectric Energy Harvesting-Based Nanogenerators

et al. 2023

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Zinc oxide (ZnO) nanorods have attracted considerable attention in recent years owing to their piezoelectric properties and potential applications in energy harvesting, sensing, and nanogenerators. Piezoelectric energy harvesting-based nanogenerators have emerged as promising new devices capable of converting mechanical energy into electric energy via nanoscale characterizations such as piezoresponse force microscopy (PFM). This technique was used to study the piezoresponse generated when an electric field was applied to the nanorods using a PFM probe. However, this work focuses on intensive studies that have been reported on the synthesis of ZnO nanostructures with controlled morphologies and their subsequent influence on piezoelectric nanogenerators. It is important to note that the diatomic nature of zinc oxide as a potential solid semiconductor and its electromechanical influence are the two main phenomena that drive the mechanism of any piezoelectric device. The results of our findings confirm that the performance of piezoelectric devices can be significantly improved by controlling the morphology and initial growth conditions of ZnO nanorods, particularly in terms of the magnitude of the piezoelectric coefficient factor (d33). Moreover, from this review, a proposed facile synthesis of ZnO nanorods, suitably produced to improve coupling and switchable polarization in piezoelectric devices, has been reported.

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“…Among nanomaterials, ZnO has attracted a high degree of attention in biomedical applications because its surface is generally terminated with hydroxyl groups and can be easily functionalized through surface modification. (1)(2)(3) In addition, ZnO is biocompatible and biodegradable, and its Zn 2+ ion constituent is an indispensable trace element in adults. Furthermore, ZnO nanoparticles have been found to have antibacterial properties (4,5) and inherent toxicity towards cancer cells (6,7) and are highly selective.…”

Section: Introductionmentioning

confidence: 99%

Cytotoxicity of ZnO Paper against Cancer Cells

Liao¹,

Lin²,

Ching³

et al. 2021

Sensors and Materials

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Paper incorporated with ZnO nanostructures (called ZnO paper) is a flexible substrate material with applications in many areas including UV detectors and gas sensors. In this work, we tested the cytotoxicity of ZnO paper against cancer cells. The ZnO paper was placed in culture media of different cancer cell lines including A549, H1299, and WI38 with and without the targeted anti-lung cancer drugs Iressa and Staurosporine, and cell viability was determined. We found that ZnO nanoparticles were cytotoxic to all the cell lines examined, and cell viability was further reduced by increasing the deposition time of these nanoparticles. In addition, cytotoxicity was enhanced when both the ZnO paper and the anticancer drugs were present in the culture media. Our experimental results indicate that ZnO paper can be used for cytotoxicity test and the development of future novel anticancer drugs.

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Property of Zinc Oxide (Zno) Nanostructures Potential for Biomedical System and Its Common Growth Mechanism

Cited by 14 publications

References 85 publications

'Nano-on-Micro' Approach Enables Synthesis of ZnO Nano-Cactus for Gas Sensing Applications

'Nano-on-Micro' Approach Enables Synthesis of ZnO Nano-Cactus for Gas Sensing Applications

Controlled Growth of Semiconducting ZnO Nanorods for Piezoelectric Energy Harvesting-Based Nanogenerators

Cytotoxicity of ZnO Paper against Cancer Cells

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