Browsing by Author "Franken, A."
Now showing items 1-17 of 17
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Crystalline silica exposure in platinum mining : a task based approach
Breedt, Anton (North-West University, 2012)Background: Workers will be exposed to silica dust (SiO2) in any working environment where mineral deposits or rock types are being processed contain silica as a component. To prevent the development of silica related ... -
Dermal exposure and changes in skin barrier function of base metal refinery workers co-exposed to cobalt and nickel
Du Plessis, J.L.; Eloff, F.C.; Engelbrecht, S.; Laubscher, P.J.; Van Aarde, M.N.; Franken, A. (The South African Society of Occupational Medicin, 2013)Refi nery workers are exposed to many metals, including cobalt and nickel, both of which are skin sensitisers, causing allergic contact dermatitis. Dermal exposure, and changes in skin barrier function [skin hydration, ... -
Dermal exposure and surface contamination associated with the use of a cobalt-chrome alloy during additive manufacturing
Paulse, Lynicka Marie (North-West University (South-Africa), 2023)Introduction: Additive Manufacturing (AM) is a layered-based technology that is used to manufacture three-dimensional products from computer-aided design. AM offers many advantages over traditional methods of manufacturing ... -
Dermal exposure to platinum group metals at a precious metal refinery : a pilot study
Barnard, Marilize (2014)Background: Workers in a platinum group metals (PGMs) refinery are potentially exposed to various precious metals (iridium, osmium, palladium, platinum, rhodium and ruthenium) and their metal-salt compounds which may cause ... -
DNA damage and repair capacity in hairdressers exposed to chemical products: a pilot study
Eloff, F.C.; Preston, R.; Pretorius, P.J.; Du Plessis, J.L.; Laubscher, P.J.; Van Aarde, M.N.; Van der Westhuizen, F.H.; Franken, A. (SASOM, 2013)Hairdressers are exposed to numerous hazardous chemical substances, some of which are known or suspected allergens, carcinogens or organic solvents. The objectives of this study were to compare DNA damage and DNA repair ... -
DNA damage and repair in nail technicians caused by occupational exposure to volatile organic compounds
Van der Merwe, Nicolene (North-West University, 2010)Objectives: The aim of this study was to determine if exposure to volatile organic compounds can lead to DNA damage and impaired DNA repair capacity. Nail cosmetics is a fast growing industry around the world where employees ... -
The evaluation and quantification of respirable coal and silica dust concentrations : a task–based approach
Grové, Tanya (North-West University, 2009)Silicosis and coal worker's pneumoconiosis are serious occupational respiratory diseases associated with the coal mining industry and the inhalation of respirable dusts that contain crystalline silica. Silica exposure is ... -
The evaluation and quantification of respirable coal and silica dust concentrations: a task-based approach
Grové, T.; Franken, A.; Du Plessis, J.; Van Dyk, T. (Taylor & Francis, 2014)Silicosis and coal worker's pneumoconiosis are serious occupational respiratory diseases associated with the coal mining industry and the inhalation of respirable dusts containing crystalline silica. The purpose of this ... -
In vitro permeation of platinum and rhodium through Caucasian skin
Franken, A.; Eloff, F.C.; Du Plessis, J.; Badenhorst, C.J.; Jordaan, A.; Du Plessis, J.L. (Elsevier, 2014)During platinum group metals (PGMs) refining the possibility exists for dermal exposure to PGM salts. The dermal route has been questioned as an alternative route of exposure that could contribute to employee sensitisation, ... -
In vitro permeation of platinum through African and Caucasian skin
Franken, A.; Eloff, F.C.; Du Plessis, J.; Badenhorst, C.J.; Du Plessis, J.L. (Elsevier, 2015)The majority of the South African workforce are Africans, therefore potential racial differences should be considered in risk and exposure assessments in the workplace. Literature suggests African skin to be a superior ... -
In vitro permeation of potassium hexachloroplatinate through full thickness human abdominal skin
Bosch, B.S. (North-West University (South Africa), 2021)Background: During the processing and refining of platinum (Pt), workers are exposed to respiratory sensitizing platinum salts. The most toxic of these platinum salts are tetra- and hexachloroplatinate, especially when ... -
The influence of different types of barrier creams on skin barrier function
Du Plessis, Sonette (North-West University, 2012)Aims and objectives: The research aims and objectives of this study were: Firstly to determine the positive effects and possible disadvantages of three types of barrier creams on skin barrier function by determining skin ... -
The influence of pH on the in vitro skin permeation of rhodium
Jansen van Rensburg, Susanna Jacoba (2014)In occupational settings where rhodium is produced or used, such as the mining industry, refineries and catalytic industries, workers are at risk of being dermally exposed to this metal in either the metallic form or its ... -
Reflections on the OECD guidelines for in vitro skin absorption studies
Hopf, N.B.; Du Plessis, J.L.; Franken, A.; Frasch, F.; Champmartin, C.; Schenk, L.; Berthet, A.; Chedik, L.; Gaskin, S. (Elsevier, 2020)At the 8th conference of Occupational and Environmental Exposure of the Skin to Chemicals (OEESC) (16–18 September 2019) in Dublin, Ireland, several researchers performing skin permeation assays convened to discuss in vitro ... -
Respiratory exposure and potential dermal exposure to volatile organic compounds in nail salons : a pilot study
Spoelstra, Christa (North-West University, 2010)Objectives: The aims of this pilot study were to quantify respiratory and potential dermal exposure of nail technicians to acetone, formaldehyde, ethyl methacrylate, methyl methacrylate, toluene and xylene. Fifteen female ... -
Sulphur loading of respirable and inhalable dust at a platinum smelter
Swanepoel, Johannes Deon. (North-West University, 2012)The contribution that sulphur, in the form of sulphates, has on ill health is still a focal point of many a study, especially in environmental studies depicting the effects that particulate air pollution has on health. ... -
Underground mine workers' respiratory exposure to selected gasses after the blasting process in a platinum mine
Steyn, Cecil-Roux (2013)Ammonium Nitrate-Fuel Oil (ANFO) is the explosive generally used in the mining industry to blast ore from the rock face. The use and detonation of ANFO explosives in an underground mine is an intrinsically hazardous process. ...