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A new approach to design safe CNTs with an understanding of redox potential.

Authors
Tsuruoka-S; Cassee-FR; Castranova-V
Source
Part Fibre Toxicol 2013 Sep; 10:44
NIOSHTIC No.
20043243
Abstract
BACKGROUND: Carbon nanotubes (CNTs) are being increasingly industrialized and applied for various products. As of today, although several toxicological evaluations of CNTs have been conducted, designing safer CNTs is not practiced because reaction kinetics of CNTs with bioactive species is not fully understood. RESULTS: The authors propose a kinetic mechanism to establish designing safe CNTs as a new goal. According to a literature search on the behavior of CNTs and the effects of impurities, it is found that chemical reactions on CNT surface are attributed to redox reactions involving metal impurities and carbon structures at the CNT surface. CONCLUSION: A new goal is proposed to design safer CNTs using the redox potential hypothesis. The value of this hypothesis must be practically investigated and proven through the further experiments.
Keywords
Nanotechnology; Toxicology; Chemical-kinetics; Chemical-reactions; Metal-compounds; Safety-measures
Contact
Shuji Tsuruoka, 1Research Center for Exotic Nanocarbons, Shinshu Univerity, 4-17-1 Wakasato, Nagano 380-8553, Japan
Publication Date
20130902
Document Type
Journal Article
Email Address
s_tsruuoka@shinshu-u.ac.jp
Fiscal Year
2013
NTIS Accession No.
NTIS Price
Identifying No.
M102013
ISSN
1743-8977
NIOSH Division
HELD
Priority Area
Manufacturing
Source Name
Particle and Fibre Toxicology
State
WV
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