Determination of multi-walled carbon nanotube bioaccumulation in earthworms measured by a microwave-based detection technique. Academic Article

abstract

• Reliable quantification techniques for carbon nanotubes (CNTs) are limited. In this study, a new procedure was developed for quantifying multi-walled carbon nanotubes (MWNTs) in earthworms (Eisenia fetida) based on freeze drying and microwave-induced heating. Specifically, earthworms were first processed into a powder by freeze drying. Then, samples were measured by utilizing 10 s exposure to 30 W microwave power. This method showed the potential to quantitatively measure MWNTs in earthworms at low concentrations (~0.1 g in 20 mg of earthworm). Also, a simple MWNT bioaccumulation study in earthworms indicated a low bioaccumulation factor of 0.0150.004. With an appropriate sample processing method and instrumental parameters (power and exposure time), this technique has the potential to quantify MWNTs in a variety of sample types (plants, earthworms, human blood, etc.).

authors

• Green, Micah

published proceedings

• Sci Total Environ

author list (cited authors)

• Li, S., Irin, F., Atore, F. O., Green, M. J., & Caas-Carrell, J. E.

citation count

• 56

complete list of authors

• Li, Shibin||Irin, Fahmida||Atore, Francis O||Green, Micah J||Cañas-Carrell, Jaclyn E

publication date

• February 2013

publisher

• Elsevier  Publisher

published in

• Science of the Total Environment  Journal

keywords

• Animals
• Environmental Monitoring
• Microwaves
• Nanotubes, Carbon
• Oligochaeta
• Soil Pollutants
• Temperature

PubMed Central ID

• 23298789

Digital Object Identifier (DOI)

• 10.1016/j.scitotenv.2012.12.037

start page

• 9

end page

• 13

volume

• 445-446

URL

• http://dx.doi.org/10.1016/j.scitotenv.2012.12.037