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Title of Journal: J Nanopart Res

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Abbravation: Journal of Nanoparticle Research

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Springer Netherlands

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Characterization of nanoparticles released during construction of photocatalytic pavements using engineered nanoparticles

Authors: Heather Dylla, Marwa M. Hassan,

Publish Date: 2012/03/24
Volume: 14, Issue:4, Pages: 825-
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With the increasing use of titanium dioxide (TiO2) nanoparticles in self-cleaning materials such as photocatalytic concrete pavements, the release of nanoparticles into the environment is inevitable. Nanoparticle concentration, particle size, surface area, elemental composition, and surface morphology are pertinent to determine the associated risks. In this study, the potential of exposure to synthetic nanoparticles released during construction activities for application of photocatalytic pavements was measured during laboratory-simulated construction activities of photocatalytic mortar overlays and in an actual field application of photocatalytic spray coat. A scanning mobility particle sizer system measured the size distribution of nanoparticles released during laboratory and field activities. Since incidental nanoparticles are released during construction activities, nanoparticle emissions were compared to those from similar activities without nano-TiO2. Nanoparticle counts and size distribution suggest that synthetic nanoparticles are released during application of photocatalytic pavements. In order to identify the nanoparticle source, nanoparticles were also collected for offline characterization using transmission electron microscopy. However, positive identification of synthetic nanoparticles was not possible due to difficulties in obtaining high-resolution images. As a result, further research is recommended to identify nanoparticle composition and sources.



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Other Papers In This Journal:

  1. Synthesis of hybrid nano- and microsized particles on the base of colloid silica and thiacalix[4]arene derivatives
  2. Direct assembly of nanoparticles for large-scale fabrication of nanodevices and structures
  3. Characterization of nanoparticles released during construction of photocatalytic pavements using engineered nanoparticles
  4. Workplace exposure to nanoparticles from gas metal arc welding process
  5. Synthesis and characterization of titanium nitride
  6. Convenient approaches for the synthesis of gold nanowires by successive utilization of two kinds of reducing agents in the solution of hexadecyl-trimethylammonium bromide
  7. Anion-exchanged nanosolid support of magnetic nanoparticle in combination with PNA probes for DNA sequence analysis
  8. Radiolabeled cyclic arginine-glycine-aspartic (RGD)-conjugated iron oxide nanoparticles as single-photon emission computed tomography (SPECT) and magnetic resonance imaging (MRI) dual-modality agents for imaging of breast cancer
  9. Nanoscale near-field infrared spectroscopic imaging of silica-shell/gold-core and pure silica nanoparticles
  10. Characterization of exposure to silver nanoparticles in a manufacturing facility
  11. Effect of nanofluids on thin film evaporation in microchannels
  12. In vitro study revealed different size behavior of different nanoparticles
  13. Electrokinetic motion of a rectangular nanoparticle in a nanochannel
  14. Self-assembled growth of Ni nanoparticles in amorphous alumina matrix
  15. Molecular dynamics simulation of iron nanoparticle sintering during flame synthesis
  16. Biocompatibility of transition metal-substituted cobalt ferrite nanoparticles
  17. Halloysite nanotubes grafted hyperbranched (co)polymers via surface-initiated self-condensing vinyl (co)polymerization
  18. Silver nanoparticle induced cytotoxicity
  19. Toxicity of nano- and micro-sized ZnO particles in human lung epithelial cells
  20. Detailed kinetic analysis of the impact of nucleation behavior and particle size distribution on the configurations of carbon black
  21. Hydrophilic azlactone-functionalized magnetite nanoparticle for conjugation with folic acid
  22. A simple method for the preparation of colloidal polymer-supported silver nanoparticles
  23. MRI contrast demonstration of antigen-specific targeting with an iron-based ferritin construct
  24. Fluorescent quantum dot hydrophilization with PAMAM dendrimer
  25. Functionalized bismuth ferrite harmonic nanoparticles for cancer cells labeling and imaging
  26. Dispersion quality of amine functionalized multiwall carbon nanotubes plays critical roles in polymerase chain reaction enhancement
  27. Controlled synthesis and characterization of layered manganese oxide nanostructures with different morphologies
  28. Factors influencing societal response of nanotechnology: an expert stakeholder analysis

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