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Host-particle interactions in the pathogenesis of health injury from air pollution: Use of Raman Scattering Spectroscopy in the analysis of the mutual relationships between PM and cell membranes

TitleHost-particle interactions in the pathogenesis of health injury from air pollution: Use of Raman Scattering Spectroscopy in the analysis of the mutual relationships between PM and cell membranes
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2009
AuthorsZerbi, G., Cetta F., Bottani C., Ferrugiari A., Tommasini M., Mantecca P., Dhamo A., Gualtieri Maurizio, and Camatini M.
JournalGIMT - Giornale Italiano delle Malattie del Torace
Volume63
Pagination431-437
KeywordsAir pollution, article, carbon, Cell interaction, cell membrane, chemical environment, health hazard, human, human cell, Italy, lung alveolus epithelium, particulate matter, pathogenesis, phagocytosis, Raman spectrometry
Abstract

Fine particulate material (PM 2.5) was collected from various sites, which were representative of "background pollution" of the City of Milan. A549 cells (Human alveolar epithelial) were subsequently exposed to different PM doses for various time intervals. PM 2.5 features, as well as cell-particle interactions, were analized by light microscopy, scanning and transmission electron microscopy and Raman spectroscopy. On the basis of previous studies of molecular dynamics and vibrational spectroscopy, a method has been described to obtain useful information on the molecular properties of different carbonaceous materials from the Raman spectra. PM 2.5 can be internalized within cell membranes by phagocytosis. Preliminary results showed that, the Raman spectra of carbon particles (PM 2.5) isolated from their usual environment or encapsulated in a cellular matrix, like that of alveolar epithelial cells, showed differences, indicating that some kind of interaction at the molecular level has occurred.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79957816517&partnerID=40&md5=89795fcd691216359b83657a627e0f74
Citation KeyZerbi2009431