Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Impact of carbon nanomaterials on microbial activity in soil
AU - Oyelami, Ayodeji O.
AU - Semple, Kirk T.
PY - 2015/7
Y1 - 2015/7
N2 - In this study, effects of an increase in concentration of ftillerene-C-60, single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs) or fullerene soot (FS) on overall microbial activity was investigated over a 21 d incubation period. Microbial utilisation of C-14-glucose and uptake of C-14-glucose into the microbial biomass was investigated. For CNM-amended soils, greater extents of C-14-glucose mineralisation were found in the C-60-amended soils compared to MWCNT-, SWCNT- or FS-amended soils. In addition, the 100 and 1000 mg kg(-1) were consistently found to have higher extents of mineralisation in C-60, MWCNT, SWCNT or FS-amended soils, respectively. Further, the incorporation of C-14-glucose into the microbial biomass declined slightly with an increase in concentration in the amended soils, but no consistent pattern was observed. As a result, the biophysical quotient (BQ) increased significantly (P
AB - In this study, effects of an increase in concentration of ftillerene-C-60, single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs) or fullerene soot (FS) on overall microbial activity was investigated over a 21 d incubation period. Microbial utilisation of C-14-glucose and uptake of C-14-glucose into the microbial biomass was investigated. For CNM-amended soils, greater extents of C-14-glucose mineralisation were found in the C-60-amended soils compared to MWCNT-, SWCNT- or FS-amended soils. In addition, the 100 and 1000 mg kg(-1) were consistently found to have higher extents of mineralisation in C-60, MWCNT, SWCNT or FS-amended soils, respectively. Further, the incorporation of C-14-glucose into the microbial biomass declined slightly with an increase in concentration in the amended soils, but no consistent pattern was observed. As a result, the biophysical quotient (BQ) increased significantly (P
KW - Carbon nanomaterials
KW - Substrate utilisation
KW - Microbial biomass
KW - Fumigation extraction
KW - Biophysical quotient
KW - FUMIGATION-EXTRACTION METHOD
KW - HEAVY-METAL CONTAMINATION
KW - COMMUNITY COMPOSITION
KW - ORGANIC-MATTER
KW - C-14 GLUCOSE
KW - NANOTUBES
KW - BIOMASS
KW - NANOPARTICLES
KW - DECOMPOSITION
KW - BACTERIA
U2 - 10.1016/j.soilbio.2015.03.029
DO - 10.1016/j.soilbio.2015.03.029
M3 - Journal article
VL - 86
SP - 172
EP - 180
JO - Soil Biology and Biochemistry
JF - Soil Biology and Biochemistry
SN - 0038-0717
ER -