Organosilane-Based Coating of Quartz Species from the Traditional Ceramics Industry: Evidence of Hazard Reduction Using In Vitro and In Vivo Tests
| العنوان: | Organosilane-Based Coating of Quartz Species from the Traditional Ceramics Industry: Evidence of Hazard Reduction Using In Vitro and In Vivo Tests |
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| المؤلفون: | Arturo Salomoni, Eliseo Monfort, Giuliana Bonvicini, A. Escrig, Christina Ziemann, M.J. Ibáñez, Otto Creutzenberg |
| المساهمون: | Publica |
| المصدر: | Repositori Universitat Jaume I Universitat Jaume I Annals of Work Exposures and Health |
| بيانات النشر: | Oxford University Press, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 0301 basic medicine, 010501 environmental sciences, 01 natural sciences, chemistry.chemical_compound, Coating, Aluminium, rat alveolar macrophages, Lung, traditional ceramics industry, Quartz, Organosilane, respiratory system, Silicon Dioxide, Cristobalite, Silanol, respirable crystalline silica, Covalent bond, Toxicity, Original Article, coating of quartz, organosilane, inorganic chemicals, Materials science, Surface Properties, Silicosis, chemistry.chemical_element, Air Pollutants, Occupational, engineering.material, complex mixtures, quartz - toxicity, Cell Line, 03 medical and health sciences, silanol groups, silicosis, Occupational Exposure, Macrophages, Alveolar, Animals, Humans, Industry, Particle Size, Carcinogen, 0105 earth and related environmental sciences, 030111 toxicology, Public Health, Environmental and Occupational Health, Rats, respiratory tract diseases, chemistry, Chemical engineering, engineering, quartz toxicity |
| الوصف: | The exposure to respirable crystalline silica (RCS), e.g. quartz, in industrial settings can induce silicosis and may cause tumours in chronic periods. Consequently, RCS in the form of quartz and cristobalite has been classified as human lung carcinogen category 1 by the International Agency for Research on Cancer in 1997, acknowledging differences in hazardous potential depending on source as well as chemical, thermal, and mechanical history. The physico-chemical determinants of quartz toxicity are well understood and are linked to density and abundance of surface silanol groups/radicals. Hence, poly-2-vinylpyridine-N-oxide and aluminium lactate, which effectively block highly reactive silanol groups at the quartz surface, have formerly been introduced as therapeutic approaches in the occupational field. In the traditional ceramics industry, quartz-containing raw materials are indispensable for the manufacturing process, and workers are potentially at risk of developing quartz-related lung diseases. Therefore, in the present study, two organosilanes, i.e. Dynasylan® PTMO and Dynasylan® SIVO 160, were tested as preventive, covalent quartz-coating agents to render ceramics production safer without loss in product quality. Coating effectiveness and coating stability (up to 1 week) in artificial alveolar and lysosomal fluids were first analysed in vitro, using the industrially relevant quartz Q1 as RCS model, quartz DQ12 as a positive control, primary rat alveolar macrophages as cellular model system (75 µg cm−2; 4 h of incubation ± aluminium lactate to verify quartz-related effects), and lactate dehydrogenase release and DNA strand break induction (alkaline comet assay) as biological endpoints. In vitro results with coated quartz were confirmed in a 90-day intratracheal instillation study in rats with inflammatory parameters as most relevant readouts. The results of the present study indicate that in particular Dynasylan® SIVO 160 (0.2% w/w of quartz) was able to effectively and stably block toxicity of biologically active quartz species without interfering with technical process quality of certain ceramic products. In conclusion, covalent organosilane coatings of quartz might represent a promising strategy to increase workers’ safety in the traditional ceramics industry. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c996e3d75597bed8868943d3f7aaba16 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c996e3d75597bed8868943d3f7aaba16 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |