Skip to main content

Toxicity Assessment of Nano-TiO2 Exposure on Nitrogen-Fixing Cyanobacteria

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Better understanding of the potential environmental impact of engineered nanomaterials is prerequisite for further advancement of nanotechnology. This study investigated the impact of nano-TiO2 exposure on primary producer algal cell-Anabaena variabilis. The combination of modern analytical techniques such as Atomic Force Microscope, Transmission Electron Microscopy and Raman microscopy allowed for both qualitative and quantitative evaluation of various impacts of nano-TiO2M on algal cells in terms of effects on growth, nitrogen fixation rate, cell surface properties alteration, intracellular structure changes and migration and bioaccumulation of the NM. Alterations in cell surface, membrane and key functional biomolecules (cyanophycin granules) and oxidative stress observed are most likely important causes of nitrogen fixation and bacterial growth inhibition. In addition, the ability of aggregated nanomaterials to dissipate overtime into smaller size and to penetrate through cell membranes suggested that internalization can occur in cyanobacteria.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Anabaena variabilis; Ecotoxicity; Nano Titanium Dioxide; Nanomaterials

Document Type: Research Article

Publication date: 2010-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more