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

Haegeun Chung; Yowhan Son; Tae Kyung Yoon; Seungwook Kim; Woong Kim

doi:10.1016/j.ecoenv.2011.01.004

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

Haegeun Chung, Yowhan Son, Tae Kyung Yoon, Seungwook Kim, Woong Kim

Research output: Contribution to journal › Article › peer-review

138 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 language	English
Pages (from-to)	569-575
Number of pages	7
Journal	Ecotoxicology and Environmental Safety
Volume	74
Issue number	4
DOIs	https://doi.org/10.1016/j.ecoenv.2011.01.004
Publication status	Published - 2011 May

Keywords

Carbon nanotubes
Extracellular enzymes
Microbial biomass
Nanomaterials
Risk assessment
Soil microorganisms

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ecoenv.2011.01.004

Cite this

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title = "The effect of multi-walled carbon nanotubes on soil microbial activity",

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.",

keywords = "Carbon nanotubes, Extracellular enzymes, Microbial biomass, Nanomaterials, Risk assessment, Soil microorganisms",

author = "Haegeun Chung and Yowhan Son and Yoon, {Tae Kyung} and Seungwook Kim and Woong Kim",

note = "Funding Information: This research was supported by the Basic Science Research Program (no. 2010-0025691) and the Pioneer Research Center Program (no. 2010-0002191) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology. We are grateful to Wooyong Jo, Seungwoo Jung, Ah Reum Lee, and Nam Jin Noh for their help with laboratory analyses. ",

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AU - Chung, Haegeun

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AU - Kim, Seungwook

AU - Kim, Woong

N1 - Funding Information: This research was supported by the Basic Science Research Program (no. 2010-0025691) and the Pioneer Research Center Program (no. 2010-0002191) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology. We are grateful to Wooyong Jo, Seungwoo Jung, Ah Reum Lee, and Nam Jin Noh for their help with laboratory analyses.

PY - 2011/5

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N2 - 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.

AB - 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.

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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