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Keld Alstrup Jensen  - - - 
Top co-authors See all
Steffen Loft

360 shared publications

Department of Public Health, Section of Environmental Health, University of Copenhagen, Copenhagen, Denmark

Carole L. Yauk

159 shared publications

Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9

H. Norppa

134 shared publications

Nanosafety Research Centre; Finnish Institute of Occupational Health; Helsinki Finland

Anders Baun

110 shared publications

Technical University of Denmark

Minnamari Vippola

89 shared publications

Laboratory of Materials Science, Tampere University of Technology, Tampere, Finland

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Publication Record
Distribution of Articles published per year 
(2002 - 2018)
Total number of journals
published in
 
23
 
Publications See all
Article 0 Reads 0 Citations Particle emission rates during electrostatic spray deposition of TiO 2 nanoparticle-based photoactive coating Antti J. Koivisto, Alexander C.ø. Jensen, Kirsten I. Kling, ... Published: 01 January 2018
Journal of Hazardous Materials, doi: 10.1016/j.jhazmat.2017.07.045
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
Here, we studied the particle release rate during Electrostatic spray deposition of anatase-(TiO2)-based photoactive coating onto tiles and wallpaper using a commercially available electrostatic spray device. Spraying was performed in a 20.3m3 test chamber while measuring concentrations of 5.6nm to 31μm-size particles and volatile organic compounds (VOC), as well as particle deposition onto room surfaces and on the spray gun user hand. The particle emission and deposition rates were quantified using aerosol mass balance modelling. The geometric mean particle number emission rate was 1.9×1010s-1 and the mean mass emission rate was 381μgs-1. The respirable mass emission-rate was 65% lower than observed for the entire measured size-range. The mass emission rates were linearly scalable (±ca. 20%) to the process duration. The particle deposition rates were up to 15h-1 for <1μm-size and the deposited particles consisted of mainly TiO2, TiO2 mixed with Cl and/or Ag, TiO2 particles coated with carbon, and Ag particles with size ranging from 60nm to ca. 5μm. As expected, no significant VOC emissions were observed as a result of spraying. Finally, we provide recommendations for exposure model parameterization.
Article 1 Read 21 Citations Nanomaterials Versus Ambient Ultrafine Particles: An Opportunity to Exchange Toxicology Knowledge Vicki Stone, Mark R. Miller, Martin J.D. Clift, Alison Elder... Published: 03 October 2017
Environmental Health Perspectives, doi: 10.1289/ehp424
DOI See at publisher website PubMed View at PubMed
Article 3 Reads 1 Citation Erratum to: NanoRiskCat: a conceptual tool for categorization and communication of exposure potentials and hazards of na... Steffen Foss Hansen, Keld Alstrup Jensen, Anders Baun Published: 30 June 2017
Journal of Nanoparticle Research, doi: 10.1007/s11051-017-3909-4
DOI See at publisher website
Article 5 Reads 3 Citations Probabilistic risk assessment of emerging materials: case study of titanium dioxide nanoparticles Michael P. Tsang, Danail Hristozov, Alex Zabeo, Antti Joonas... Published: 21 April 2017
Nanotoxicology, doi: 10.1080/17435390.2017.1329952
DOI See at publisher website PubMed View at PubMed
Article 1 Read 5 Citations Biodistribution of Carbon Nanotubes in Animal Models Nicklas Raun Jacobsen, Anne Thoustrup Saber, Christian Miche... Published: 22 February 2017
Basic & Clinical Pharmacology & Toxicology, doi: 10.1111/bcpt.12705
DOI See at publisher website ABS Show/hide abstract
The many interesting physical and chemical properties of carbon nanotubes (CNT) make it one of the most commercially attractive materials in the era of nanotechnology. Here, we review the recent publications on in vivo biodistribution of pristine and functionalized forms of single-walled and multi-walled CNT. Pristine CNT remain in the lung for months or even years after pulmonary deposition. If cleared, the majority of CNT move to the gastrointestinal (GI) tract via the mucociliary escalator. However, there appears to be no uptake of CNT from the GI tract, with a possible exception of the smallest functionalized SWCNT. Importantly, a significant fraction of CNT translocate from the alveolar space to the near pulmonary region including lymph nodes, subpleura and pleura (<7% of the pulmonary deposited dose) and to distal organs including liver, spleen and bone marrow (~1%). These results clearly demonstrate the main sites of long-term CNT accumulation, which also includes pleura, a major site for fibre-induced pulmonary diseases. Studies on intravenous injection show that CNT in blood circulation are cleared relatively fast with a half-life of minutes or hours. The major target organs were the same as identified after pulmonary exposure with the exception of urine excretion of especially functionalized SWCNT and accumulation in lung tissue. Overall, there is evidence that CNT will primarily be distributed to the liver where they appear to be present at least one year after exposure.
BOOK-CHAPTER 0 Reads 1 Citation Engineered Nanomaterials: Their Physicochemical Characteristics and How to Measure Them Rambabu Atluri, Keld Alstrup Jensen Published: 07 February 2017
doi: 10.1007/978-3-319-47754-1_1
DOI See at publisher website
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