Selective detection and quantification of carbon nanotubes in soil

Carbon nanotubes (CNTs) have been widely applied in many industrial fields. As world production of CNTs increases, the risk of environmental exposure to CNTs also increases. Therefore, to evaluate the impact on the environment, many cell and animal studies have reported on the toxicity of CNTs. It i...

Full description

Saved in:
Bibliographic Details
Published in:Environmental toxicology and chemistry 2015-09, Vol.34 (9), p.1969-1974
Main Authors: Jeong, Junhoe, Lee, Yong-ju, Hwang, Yu sik, Hong, In Seok
Format: Article
Language:English
Subjects:
Assessments
Biotin - chemistry
Carbon
Carbon nanotube quantification
Carbon nanotubes
Environmental assessment
Environmental impact
Environmental risk
Fluorescent quenching
Graphene
Graphene oxide
Graphite - chemistry
Magnetic beads
Magnetics
Nanotechnology
Nanotubes
Nanotubes, Carbon - analysis
Nanotubes, Carbon - chemistry
Nanotubes, Carbon - toxicity
Oligomers
Organic Chemicals - chemistry
Oxidation-Reduction
Oxides - chemistry
Pollution
Risk
Selective detection
Sodium Dodecyl Sulfate - chemistry
Soil (material)
Soil contamination
Soil Pollutants - analysis
Soil Pollutants - chemistry
Soil Pollutants - toxicity
Soils
Spectrometry, Fluorescence
Toxicity
Water pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Carbon nanotubes (CNTs) have been widely applied in many industrial fields. As world production of CNTs increases, the risk of environmental exposure to CNTs also increases. Therefore, to evaluate the impact on the environment, many cell and animal studies have reported on the toxicity of CNTs. It is important to determine the degree of contamination of CNTs in soil and to find the pollution pathways for assessment of the environmental toxicity of CNTs. However, selective detection methods for CNTs in soil or water have rarely been reported. In the present study, a novel technique was developed to quantify the amount of CNTs in soil mixtures using fluorescent SYBR Green I dye after isolation of the CNTs with specific DNA oligomers. As a result, a limit of detection of CNTs in soil was obtained in the range of 250 ppb. This limit can easily be extended to the level of 10 ppb using magnetic well plates with a greater capacity. This method also worked well in the presence of graphene oxide and could be applied to the detection of CNTs in a variety of surroundings (e.g., fish and other tissues). Environ Toxicol Chem 2015;34:1969–1974. © 2015 SETAC
ISSN:0730-7268
1552-8618
DOI:10.1002/etc.3035