1 resultado para Physico-chemical features
em Université de Lausanne, Switzerland
Filtro por publicador
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (19)
- Aquatic Commons (59)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (12)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (4)
- Archive of European Integration (2)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (3)
- Aston University Research Archive (30)
- B-Digital - Universidade Fernando Pessoa - Portugal (1)
- Biblioteca de Teses e Dissertações da USP (5)
- Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (4)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (17)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (5)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (15)
- Biodiversity Heritage Library, United States (2)
- Bioline International (3)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (11)
- Brock University, Canada (1)
- Cambridge University Engineering Department Publications Database (1)
- CentAUR: Central Archive University of Reading - UK (26)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (26)
- Cochin University of Science & Technology (CUSAT), India (59)
- CORA - Cork Open Research Archive - University College Cork - Ireland (4)
- Deakin Research Online - Australia (24)
- Digital Commons - Michigan Tech (1)
- Digital Commons at Florida International University (3)
- DigitalCommons@The Texas Medical Center (1)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (3)
- Duke University (1)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (6)
- FAUBA DIGITAL: Repositorio institucional científico y académico de la Facultad de Agronomia de la Universidad de Buenos Aires (2)
- Greenwich Academic Literature Archive - UK (2)
- Helda - Digital Repository of University of Helsinki (8)
- Illinois Digital Environment for Access to Learning and Scholarship Repository (1)
- Indian Institute of Science - Bangalore - Índia (54)
- INSTITUTO DE PESQUISAS ENERGÉTICAS E NUCLEARES (IPEN) - Repositório Digital da Produção Técnico Científica - BibliotecaTerezine Arantes Ferra (1)
- Instituto Politécnico de Bragança (4)
- Instituto Politécnico de Castelo Branco - Portugal (1)
- Instituto Politécnico de Viseu (2)
- Instituto Politécnico do Porto, Portugal (3)
- Memorial University Research Repository (1)
- National Center for Biotechnology Information - NCBI (1)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (6)
- Portal de Revistas Científicas Complutenses - Espanha (1)
- Publishing Network for Geoscientific & Environmental Data (49)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (15)
- Queensland University of Technology - ePrints Archive (37)
- Repositorio Académico de la Universidad Nacional de Costa Rica (1)
- Repositório Alice (Acesso Livre à Informação Científica da Embrapa / Repository Open Access to Scientific Information from Embrapa) (3)
- Repositório Científico da Universidade de Évora - Portugal (2)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
- Repositório Científico do Instituto Politécnico de Santarém - Portugal (1)
- Repositorio de la Universidad de Cuenca (1)
- Repositório Institucional da Universidade de Aveiro - Portugal (13)
- Repositório Institucional da Universidade de Brasília (3)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (4)
- Repositório Institucional da Universidade Federal do Rio Grande - FURG (2)
- Repositório Institucional da Universidade Federal do Rio Grande do Norte (4)
- Repositório Institucional da Universidade Tecnológica Federal do Paraná (RIUT) (1)
- Repositorio Institucional de la Universidad de La Laguna (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (208)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
- SAPIENTIA - Universidade do Algarve - Portugal (2)
- Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (2)
- Universidad de Alicante (7)
- Universidad del Rosario, Colombia (1)
- Universidad Politécnica de Madrid (16)
- Universidade de Lisboa - Repositório Aberto (3)
- Universidade dos Açores - Portugal (1)
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP) (7)
- Universidade Federal do Pará (16)
- Universidade Federal do Rio Grande do Norte (UFRN) (41)
- Universita di Parma (4)
- Universitat de Girona, Spain (4)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
- Université de Lausanne, Switzerland (1)
- Université de Montréal, Canada (13)
- Université Laval Mémoires et thèses électroniques (3)
- University of Michigan (9)
- University of Queensland eSpace - Australia (7)
Resumo:
Brake wear dust is a significant component of traffic emissions and has been linked to adverse health effects. Previous research found a strong oxidative stress response in cells exposed to freshly generated brake wear dust. We characterized aged dust collected from passenger vehicles, using microscopy and elemental analyses. Reactive oxygen species (ROS) generation was measured with acellular and cellular assays using 2′7-dichlorodihydrofluorescein dye. Microscopy analyses revealed samples to be heterogeneous particle mixtures with few nanoparticles detected. Several metals, primarily iron and copper, were identified. High oxygen concentrations suggested that the elements were oxidized. ROS were detected in the cell-free fluorescent test, while exposed cells were not dramatically activated by the concentrations used. The fact that aged brake wear samples have lower oxidative stress potential than fresh ones may relate to the highly oxidized or aged state of these particles, as well as their larger size and smaller reactive surface area.