The characterisation data of selected ZnO and TiO2 particles

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Abstract
Physiochemical properties play an important role in the biological activity of nanoparticles, especially when assessing nanotoxicity. Nanoparticles have unique properties due to their surface area, shape, size, and structure, hence they can be expected to have different toxicities when compared to conventional size materials. Therefore, in order to provide a better understanding of the toxicity of ZnO and TiO2 nanoparticles, the particle size distribution, crystalline structure, composition, and surface area have been studied. The aim of this study was to characterise and compare the physicochemical properties of sunscreen particles and further determine the potential impact they have on overall toxicity.
Persistent link to this record
http://hdl.handle.net/1959.4/004_173
DOI
https://doi.org/10.26190/unsworks/1340
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Research Data Creator(s)
Corporate/Industry Contributor(s)
Publication Year
2011
Resource Type
Dataset
Keyword(s)
Nanoparticles
Titanium dioxide
Zinc oxide
UNSW Faculty
Related dataset(s)
In vitro toxicity data of the selected micro and nano size sunscreen particles with human cells
Dataset
The cytotoxicity of selected ZnO and TiO2 nanoparticles were studied in human cells with the relevance of exposures including; skin fibroblasts and pulmonary type II-like epithelial cell lines (A549) using the MTS (tetrazolium salt; Promega); the ATP (adenosine triphosphate; Promega); the LDH (lactate dehydrogenase; Promega); and NRU (neutral red uptake; Sigma) in vitro assays.
The biological effects of micro- and nanoparticles in sunscreens products on human skin
Dataset
The histopathological responses of human skin were studied in vitro following topical application of sunscreen products containing selected micro- and nanoparticles particles. Adult human skin (Caucasian, age 35-55) donated following elective radical abdominoplasty was used. A Franz cell diffusion apparatus (PermeGear Inc; Hellertown, PA, USA) was used to assess histopathological and morphological changes to the human skin.
Related publication(s)
Fabricate and Investigate the Physical Properties of Anatase-TiO2 Thin Films and Freestanding Membranes for Device Application
(2021) Yang, Ni
Thesis
Titanium oxide (TiO2) is one of the most widely studied dioxides as its specific surface properties, which makes it an ideal candidate for pollutant reducing and water splitting. TiO2 thin film has gained an increasing concern for transparent electrodes, photovoltaic application and resistive switching memory devices. Research for the highly reduced TiO2 thin film for transparent electrodes has been conducted in some research groups; however, the cost and technology present a challenge to the widespread use of TiO2 transparent electrodes. As an n-type semiconductor, TiO2 has been recognized as an ideal switching interlayer in resistive switching memory. The new challenge derived from Moore’s crisis and von Neuman architecture present obstacles to the further improvement of computer performance. Memristor, as its in-memory computing, can be applied in the next generation computer to reduce the cost and increase operational efficiency. Furthermore, till now, fabrication freestanding TiO2 with a near 100% stable (001) anatase surface is still a challenge. In this research thesis, I firstly reported a convenient way to produce highly conductive TiO2 thin film that can be used to replace ITO and FTO for the transparent electrode application. Subsequently, a TiO2/Nb: STO memristor was fabricated to realize the high-density data storage, arithmetic logical operation and neuromorphic computing, and then a state-of-the-art method was introduced to fabricate freestanding anatase TiO2 thin film with near 100% (001) surface.
Related grant(s)
Development of in vitro toxicity test method for safety evaluation of nanoparticles in sunscreen products
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