The effect of multi-walled carbon nanotubes on soil microbial activity

Haegeun Chung, Yo Whan Son, Tae Kyung Yoon, Seung Wook Kim, Woong Kim

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Nanomaterials such as multi-walled carbon nanotubes (MWCNTs) are applied to various industrial products and thus may be released to soils, but their potential environmental impacts remain largely undetermined. We investigated the short-term effect of MWCNTs on the activity and biomass of microorganisms inhabiting two different soil types in an incubation study. Up to 5000γgMWCNTg-1soil was applied and the activities of 1,4-Β-glucosidase, cellobiohydrolase, xylosidase, 1,4-Β-N-acetylglucosaminidase, and phosphatase and microbial biomass were measured. In both soil types, most enzyme activities showed a tendency to be repressed under 500γgMWCNTg-1soil, and all enzymatic activities as well as microbial biomass C and N were significantly lowered under 5000γgMWCNTg-1soil. Our results suggest that high concentrations of MWCNTs could lower the microbial activity and biomass in soils, and they may serve as an important guideline in regulating the release of MWCNTs to the soil environment.

Original languageEnglish
Pages (from-to)569-575
Number of pages7
JournalEcotoxicology and Environmental Safety
Volume74
Issue number4
DOIs
Publication statusPublished - 2011 May 1

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Soil
Biomass
Soils
Cellulose 1,4-beta-Cellobiosidase
Xylosidases
Glucosidases
Acetylglucosaminidase
Nanostructures
Phosphatases
Enzyme activity
Phosphoric Monoester Hydrolases
Nanostructured materials
Microorganisms
Environmental impact
Guidelines
Enzymes

Keywords

  • Carbon nanotubes
  • Extracellular enzymes
  • Microbial biomass
  • Nanomaterials
  • Risk assessment
  • Soil microorganisms

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Public Health, Environmental and Occupational Health
  • Pollution

Cite this

The effect of multi-walled carbon nanotubes on soil microbial activity. / Chung, Haegeun; Son, Yo Whan; Yoon, Tae Kyung; Kim, Seung Wook; Kim, Woong.

In: Ecotoxicology and Environmental Safety, Vol. 74, No. 4, 01.05.2011, p. 569-575.

Research output: Contribution to journalArticle

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