Effects of Suspended Multi-Walled Carbon Nanotubes on Daphnid Growth and Reproduction

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Multi-walled carbon nanotube aggregates can be suspended in the aqueous phase by natural organic matter. These aggregates are ingested by filter feeding zooplankton. Ingested aggregates result in decreased growth and decreased reproduction. These effects may be caused by reduction in energy input from normal feeding behavior. pH alters natural organic matter structure through changes in electrostatic repulsion. Altered natural organic matter structure changes multi-walled carbon nanotube aggregate size. This size variation with variation in pH is significant, but not large enough a change in size to alter toxicity, as the aggregate size range remains well within the particle size selection ... continued below

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Alloy, Matthew Michael May 2010.

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  • Alloy, Matthew Michael

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Multi-walled carbon nanotube aggregates can be suspended in the aqueous phase by natural organic matter. These aggregates are ingested by filter feeding zooplankton. Ingested aggregates result in decreased growth and decreased reproduction. These effects may be caused by reduction in energy input from normal feeding behavior. pH alters natural organic matter structure through changes in electrostatic repulsion. Altered natural organic matter structure changes multi-walled carbon nanotube aggregate size. This size variation with variation in pH is significant, but not large enough a change in size to alter toxicity, as the aggregate size range remains well within the particle size selection of the organisms.

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  • May 2010

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  • Sept. 10, 2010, 1:20 a.m.

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  • June 27, 2017, 11:17 a.m.

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Alloy, Matthew Michael. Effects of Suspended Multi-Walled Carbon Nanotubes on Daphnid Growth and Reproduction, thesis, May 2010; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc28383/: accessed July 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .