Results 221 to 230 of about 28,648 (259)
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Nano zinc oxide for UV protection of textiles
International Journal of Technology Transfer and Commercialisation, 2008This paper describes the effect on the fading of dyed polyester fabrics in artificial sunlight, when the Ultra Violet (UV) component of the radiation was blocked by coating the fabric with zinc oxide nanoparticles, dispersed in an acrylic polymer. Zinc oxide is photoactive and generates superoxide and hydroxyl radicals (Reactive Oxygen Species; ROS ...
Lu Sun +6 more
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Nano-technological aspects of zinc oxide and silver in cosmetics
Journal of Applied Physics, 2022Nanoparticles (NPs) specifically synthesized from leaves’ extracts with a high content of phytonutrients have gained significant importance in personal care products such as sunscreens. The objective of this study was to estimate the in vitro sunscreen activity of an emulsion comprising ZnO and Ag NPs synthesized with the leaves’ extract of Laurus ...
S. Shamaila +3 more
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Environmental Monitoring and Assessment, 2019
Multiple applications of nanoparticles (NPs) could result in their potential release into agricultural systems and raised concerns about food safety. The NPs once released in the environment may interact with numerous pollutants, including other NPs. Present study assessed the impact of a single (CuO and ZnO NPs) and binary mixture (CuO+ZnO NPs) on the
Divya, Singh, Arun, Kumar
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Multiple applications of nanoparticles (NPs) could result in their potential release into agricultural systems and raised concerns about food safety. The NPs once released in the environment may interact with numerous pollutants, including other NPs. Present study assessed the impact of a single (CuO and ZnO NPs) and binary mixture (CuO+ZnO NPs) on the
Divya, Singh, Arun, Kumar
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Effects of nano zinc oxide and nano chitosan on the taste masking paracetamol granules
Drug Development and Industrial PharmacyThe purpose of this study is to investigate the taste masking of Paracetamol granules in the range of 250-850 µm, coated by two nanocomposites prepared from Eudragit® E100, nanozinc oxide, and nanochitosan, respectively, from 1 to 5% by the weight of the granules.In this study, Paracetamol granules were coated in several formulas with two different ...
Tina Rashidi, Alireza Shakeri
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Zinc oxide nano-structures: From nano-wall to nano-rod growth morphology
AIP Conference Proceedings, 2018Controlled growth of ZnO based nano-structures, starting from a vertical nano-wall surface morphology to laterally grown nano-rods/wires, has been achieved using systematic variation in the oxidation temperature of the thin Zn films form 100 – 700°C.
Sumita Choudhary, Subhashis Gangopadhyay
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Human safety review of “nano” titanium dioxide and zinc oxide
Photochemical & Photobiological Sciences, 2010Based on the current weight of evidence of all available data, the risk for humans from the use of nano-structured titanium dioxide (TiO(2)) or zinc oxide (ZnO) currently used in cosmetic preparations or sunscreens is considered negligible. There is a large body of information that when viewed in its entirety is considered as sufficient to demonstrate ...
Karsten, Schilling +9 more
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The Application of Nano-zinc oxide in Petrochemical
Advances in Engineering Technology ResearchIn today’s world, fossil fuels dominate the energy supply. However, petroleum refining produces many toxic gases, including sulfur oxides, which have caused many serious environmental and health problems. To reduce this negative externality, petroleum firms use desulfurizers to absorb the sulfur.
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Journal of Sol-Gel Science and Technology, 2013
In order to synthesise Stober spheres of different diameters, fixed amounts of ethanol, ammonia and water were used with varying amounts of tetraethyl orthosilicate. This simple method was further applied to the synthesis of nano-ZnO and nano-MgO from their respective precursors, zinc methoxide and magnesium ethoxide.
Liberty L. Mguni +4 more
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In order to synthesise Stober spheres of different diameters, fixed amounts of ethanol, ammonia and water were used with varying amounts of tetraethyl orthosilicate. This simple method was further applied to the synthesis of nano-ZnO and nano-MgO from their respective precursors, zinc methoxide and magnesium ethoxide.
Liberty L. Mguni +4 more
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Journal of Advanced Microscopy Research, 2012
Ag/ZnO and Au/CuxO (x = 1,2) nanocomposites supported on Si(100) and polycrystalline Al2O3 were synthesised by hybrid approaches, combining chemical vapor deposition (either thermal or plasma-assisted) of host oxide matri ices and subsequent radio frequency-sputtering of guest metal particles.
MACCATO, CHIARA +7 more
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Ag/ZnO and Au/CuxO (x = 1,2) nanocomposites supported on Si(100) and polycrystalline Al2O3 were synthesised by hybrid approaches, combining chemical vapor deposition (either thermal or plasma-assisted) of host oxide matri ices and subsequent radio frequency-sputtering of guest metal particles.
MACCATO, CHIARA +7 more
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Synthesis of Zinc oxide nano flower for photovoltaic applications
Materials Today: Proceedings, 2016Abstract In the present work, ZnO nanoflowers have been synthesized with a single precursor at relatively low temperature by using ammonia. As-prepared ZnO nanoflowers were characterized by X-Ray Diffraction, Fourier Infrared Transmission and UV–visible spectroscopy.
Sunita Sharma +2 more
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