نتایج جستجو برای: zinc oxide zno

تعداد نتایج: 251434  

2014
P. Carvalho P. Sampaio J. O. Carneiro J. P. Espinós V. Teixeira

In this research work, the production of undoped and silver (Ag) doped zinc oxide (ZnO) thin films for food packaging applications was developed. The main goal was to determine the influence of coatings morphology and thickness on the antimicrobial performance of the produced samples. The ZnO based thin films were deposited on PET (Polyethylene terephthalate) by means of DC reactive magnetron s...

2016
Dae-Sung Park Haiyuan Wang Sepehr K. Vasheghani Farahani Marc Walker Akash Bhatnagar Djelloul Seghier Chel-Jong Choi Jie-Hun Kang Chris F. McConville

Physiochemical interactions which occur at the surfaces of oxide materials can significantly impair their performance in many device applications. As a result, surface passivation of oxide materials has been attempted via several deposition methods and with a number of different inert materials. Here, we demonstrate a novel approach to passivate the surface of a versatile semiconducting oxide, ...

2017
Jia Liu Yiyuan Kang Suhan Yin Bin Song Limin Wei Liangjiao Chen Longquan Shao

Due to the widespread applications of zinc oxide nanoparticles (ZnO NPs), the potential exposure of workers, consumers, and scientists to these particles has increased. This potential for exposure has attracted extensive attention in the science community. Many studies have examined the toxicological profile of ZnO NPs in the immune system, digestive system, however, information regarding the t...

2017
Chen Xia Zheng Qiao Chu Feng Jung-Sik Kim Baoyuan Wang Bin Zhu

Semiconducting-ionic conductors have been recently described as excellent electrolyte membranes for low-temperature operation solid oxide fuel cells (LT-SOFCs). In the present work, two new functional materials based on zinc oxide (ZnO)-a legacy material in semiconductors but exceptionally novel to solid state ionics-are developed as membranes in SOFCs for the first time. The proposed ZnO and Z...

Journal: :Jurnal Kimia Sains dan Aplikasi 2022

Lithium-ion batteries using zinc oxide (ZnO) as anode material had a high theoretical capacity of about 987 mAh/g. Unfortunately, ZnO can drop below 200 mAh/g after only few cycles. For that reason, graphite was added in this study due to its stable around 348-374 maintain the stability lithium-ion battery capacity. Zinc oxide/graphite (ZnO/Graphite) prepared solid-state method, which and were ...

2012
JN Ding YB Liu CB Tan NY Yuan

The impact of various substrates and zinc oxide (ZnO) ultra thin seed layers prepared by atomic layer deposition on the geometric morphology of subsequent ZnO nanowire arrays (NWs) fabricated by the hydrothermal method was investigated. The investigated substrates included B-doped ZnO films, indium tin oxide films, single crystal silicon (111), and glass sheets. Scanning electron microscopy and...

2015
Leah C. Wehmas Catherine Anders Jordan Chess Alex Punnoose Cliff B. Pereira Juliet A. Greenwood Robert L. Tanguay

Engineered metal oxide nanoparticles (MO NPs) are finding increasing utility in the medical field as anticancer agents. Before validation of in vivo anticancer efficacy can occur, a better understanding of whole-animal toxicity is required. We compared the toxicity of seven widely used semiconductor MO NPs made from zinc oxide (ZnO), titanium dioxide, cerium dioxide and tin dioxide prepared in ...

Journal: :زیست شناسی جانوری تجربی 0
محبوبه میر حسینی مقایسة اثر ضد میکروبی نانوذره zno در آبمیوه سیب در دمای 25 و 4 درجه سلسیوس مولود کیانی هرچگانی مقایسة اثر ضد میکروبی نانوذره zno در آبمیوه سیب در دمای 25 و 4 درجه سلسیوس شیرین مامایی دهکردی مقایسة اثر ضد میکروبی نانوذره zno در آبمیوه سیب در دمای 25 و 4 درجه سلسیوس فاطمه برزگری فیروز آبادی مقایسة اثر ضد میکروبی نانوذره zno در آبمیوه سیب در دمای 25 و 4 درجه سلسیوس

abstract nanoparticles (nps) are increasingly recognized as their usage in biological applications including nanomedicine and food safety. purpose of this study was study on comparison of antibacterial effect of zno nanoparticles in apple juice at 25 and 4 ° c. the present study investigated the antibacterial activity of zno was tested against listeria monocytogenes, escherichia coli, staphyloc...

2017
Ting Su Haifeng Zhang

Charge trapping properties of electrons and holes in copper-doped zinc oxide (ZnO:Cu) films have been studied by scanning probe microscopy. We investigated the surface potential dependence on the voltage and duration applied to the copper-doped ZnO films by Kelvin probe force microscopy. It is found that the Fermi Level of the 8 at.% Cu-doped ZnO films shifted by 0.53 eV comparing to undoped Zn...

Carbon-based chemical substances persistence can contribute to adverse health impacts on human lives. It is essential to overcome for treatment purposes. The semiconducting metal oxide is Zinc Oxide (ZnO), which has excellent biocompatibility, good chemical stability, selectivity, sensitivity, non-toxicity, and fast electron transfer characteristics. The ZnO nanoparticles are more efficient com...

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