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Thwala MM, Afantitis A, Papadiamantis AG, Tsoumanis A, Melagraki G, Dlamini LN, Ouma CNM, Ramasami P, Harris R, Puzyn T, Sanabria N, Lynch I, Gulumian M. Using the Isalos platform to develop a (Q)SAR model that predicts metal oxide toxicity utilizing facet-based electronic, image analysis-based, and periodic table derived properties as descriptors. Struct Chem 2021. [DOI: 10.1007/s11224-021-01869-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
AbstractEngineered nanoparticles (NPs) are being studied for their potential to harm humans and the environment. Biological activity, toxicity, physicochemical properties, fate, and transport of NPs must all be evaluated and/or predicted. In this work, we explored the influence of metal oxide nanoparticle facets on their toxicity towards bronchial epithelial (BEAS-2B), Murine myeloid (RAW 264.7), and E. coli cell lines. To estimate the toxicity of metal oxide nanoparticles grown to a low facet index, a quantitative structure–activity relationship ((Q)SAR) approach was used. The novel model employs theoretical (density functional theory calculations) and experimental studies (transmission electron microscopy images from which several particle descriptors are extracted and toxicity data extracted from the literature) to investigate the properties of faceted metal oxides, which are then utilized to construct a toxicity model. The classification mode of the k-nearest neighbour algorithm (EnaloskNN, Enalos Chem/Nanoinformatics) was used to create the presented model for metal oxide cytotoxicity. Four descriptors were identified as significant: core size, chemical potential, enthalpy of formation, and electronegativity count of metal oxides. The relationship between these descriptors and metal oxide facets is discussed to provide insights into the relative toxicities of the nanoparticle. The model and the underpinning dataset are freely available on the NanoSolveIT project cloud platform and the NanoPharos database, respectively.
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Mølbak K, Espenhain L, Nielsen J, Tersago K, Bossuyt N, Denissov G, Baburin A, Virtanen M, Fouillet A, Sideroglou T, Gkolfinopoulou K, Paldy A, Bobvos J, van Asten L, de Lange M, Nunes B, da Silva S, Larrauri A, Gómez IL, Tsoumanis A, Junker C, Green H, Pebody R, McMenamin J, Reynolds A, Mazick A. Excess mortality among the elderly in European countries, December 2014 to February 2015. Euro Surveill 2015; 20. [DOI: 10.2807/1560-7917.es2015.20.11.21065] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Since December 2014 and up to February 2015, the weekly number of excess deaths from all-causes among individuals?≥?65 years of age in 14 European countries have been significantly higher than in the four previous winter seasons. The rise in unspecified excess mortality coincides with increased proportion of influenza detection in the European influenza surveillance schemes with a main predominance of influenza A(H3N2) viruses seen throughout Europe in the current season, though cold snaps and other respiratory infections may also have had an effect.
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Affiliation(s)
- K Mølbak
- Statens Serum Institut, Copenhagen, Denmark
| | | | - J Nielsen
- Statens Serum Institut, Copenhagen, Denmark
| | - K Tersago
- Scientific Institute of Public Health, Brussels, Belgium
| | - N Bossuyt
- Scientific Institute of Public Health, Brussels, Belgium
| | - G Denissov
- National Institute for Health Devlopment, Tallinn, Estonia
| | - A Baburin
- National Institute for Health Devlopment, Tallinn, Estonia
| | - M Virtanen
- National Institute for Health and Welfare, Helsinki, Finland
| | - A Fouillet
- French Institute for Public Health Surveillance (Institut de Veille Sanitaire, InVS), Saint-Maurice, France
| | - T Sideroglou
- Hellenic Centre for Disease Control and Prevention, Athens, Greece
| | - K Gkolfinopoulou
- Hellenic Centre for Disease Control and Prevention, Athens, Greece
| | - A Paldy
- National Institute of Environmental Health, Budapest, Hungary
| | - J Bobvos
- National Institute of Environmental Health, Budapest, Hungary
| | - L van Asten
- National Institute of Public Health and The Environment (RIVM), the Netherlands
| | - M de Lange
- National Institute of Public Health and The Environment (RIVM), the Netherlands
| | - B Nunes
- Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - S da Silva
- Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - A Larrauri
- National Centre of Epidemiology; CIBER Epidemiología y Salud Pública (CIBERESP) Institute of Health Carlos III, Madrid, Spain
| | - I L Gómez
- National Centre of Epidemiology; CIBER Epidemiología y Salud Pública (CIBERESP) Institute of Health Carlos III, Madrid, Spain
| | - A Tsoumanis
- The Public Health Agency of Sweden, Stockholm, Sweden
| | - C Junker
- Federal Statistical Office, Neuchâtel, Switzerland
| | - H Green
- Public Health England, London, United Kingdom
| | - R Pebody
- Public Health England, London, United Kingdom
| | - J McMenamin
- Health Protection Scotland, Glasgow, United Kingdom
| | - A Reynolds
- Health Protection Scotland, Glasgow, United Kingdom
| | - A Mazick
- Statens Serum Institut, Copenhagen, Denmark
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Tsoumanis A, Melagraki G, Afantitis A. Enalos KNIME nodes: exploring environmental durability, ageing resistance and corrosion inhibition. J Cheminform 2013. [PMCID: PMC3606237 DOI: 10.1186/1758-2946-5-s1-p42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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