ROS evaluation for series of CNTs using the ESR method and the effects of CNT morphology

S. Tsuruoka; K. Takeuchi; K. Koyama; Kazunori Fujisawa; H. Matsumoto; N. Saito; Y. Usui; D. W. Porter; V. Castranova; M. Endo

ROS evaluation for series of CNTs using the ESR method and the effects of CNT morphology

S. Tsuruoka, K. Takeuchi, K. Koyama, Kazunori Fujisawa, H. Matsumoto, N. Saito, Y. Usui, D. W. Porter, V. Castranova, M. Endo

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Carbon nanotubes (CNTs) are becoming important materials in industry. It is a concern that CNTs may induce carcinogenic responses through pulmonary exposure. It has been recently reported that CNTs scavenge radical oxygen species (ROS) depending on their morphology. ROS production has been utilized for toxicological evaluations. The present work specifically investigates ROS scavenging capabilities using the series of CNTs and their derivatives with surface modifications. Those ROS scavenging properties were measured by ESR with 5, 5-Dimethyl-1-pyrroline N-oxide (DMPO). Highly crystallized, mechanically chopped, and mechanically de-bulked CNTs were evaluated. Furthermore, their surface modification by nitric acid and ozone was compared with untreated CNTs.

Original language	English (US)
Title of host publication	Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Pages	449-452
Number of pages	4
Volume	3
State	Published - Aug 9 2013
Event	Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 - Washington, DC, United States Duration: May 12 2013 → May 16 2013

Other

Other	Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Country/Territory	United States
City	Washington, DC
Period	5/12/13 → 5/16/13

All Science Journal Classification (ASJC) codes

Biotechnology

Cite this

@inproceedings{9e92d0f6e5a743578a106658ec21d769,

title = "ROS evaluation for series of CNTs using the ESR method and the effects of CNT morphology",

abstract = "Carbon nanotubes (CNTs) are becoming important materials in industry. It is a concern that CNTs may induce carcinogenic responses through pulmonary exposure. It has been recently reported that CNTs scavenge radical oxygen species (ROS) depending on their morphology. ROS production has been utilized for toxicological evaluations. The present work specifically investigates ROS scavenging capabilities using the series of CNTs and their derivatives with surface modifications. Those ROS scavenging properties were measured by ESR with 5, 5-Dimethyl-1-pyrroline N-oxide (DMPO). Highly crystallized, mechanically chopped, and mechanically de-bulked CNTs were evaluated. Furthermore, their surface modification by nitric acid and ozone was compared with untreated CNTs.",

author = "S. Tsuruoka and K. Takeuchi and K. Koyama and Kazunori Fujisawa and H. Matsumoto and N. Saito and Y. Usui and Porter, {D. W.} and V. Castranova and M. Endo",

year = "2013",

month = aug,

day = "9",

language = "English (US)",

isbn = "9781482205862",

volume = "3",

pages = "449--452",

booktitle = "Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013",

note = "Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 ; Conference date: 12-05-2013 Through 16-05-2013",

}

Tsuruoka, S, Takeuchi, K, Koyama, K, Fujisawa, K, Matsumoto, H, Saito, N, Usui, Y, Porter, DW, Castranova, V & Endo, M 2013, ROS evaluation for series of CNTs using the ESR method and the effects of CNT morphology. in Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013. vol. 3, pp. 449-452, Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013, Washington, DC, United States, 5/12/13.

TY - GEN

T1 - ROS evaluation for series of CNTs using the ESR method and the effects of CNT morphology

AU - Tsuruoka, S.

AU - Takeuchi, K.

AU - Koyama, K.

AU - Fujisawa, Kazunori

AU - Matsumoto, H.

AU - Saito, N.

AU - Usui, Y.

AU - Porter, D. W.

AU - Castranova, V.

AU - Endo, M.

PY - 2013/8/9

Y1 - 2013/8/9

N2 - Carbon nanotubes (CNTs) are becoming important materials in industry. It is a concern that CNTs may induce carcinogenic responses through pulmonary exposure. It has been recently reported that CNTs scavenge radical oxygen species (ROS) depending on their morphology. ROS production has been utilized for toxicological evaluations. The present work specifically investigates ROS scavenging capabilities using the series of CNTs and their derivatives with surface modifications. Those ROS scavenging properties were measured by ESR with 5, 5-Dimethyl-1-pyrroline N-oxide (DMPO). Highly crystallized, mechanically chopped, and mechanically de-bulked CNTs were evaluated. Furthermore, their surface modification by nitric acid and ozone was compared with untreated CNTs.

AB - Carbon nanotubes (CNTs) are becoming important materials in industry. It is a concern that CNTs may induce carcinogenic responses through pulmonary exposure. It has been recently reported that CNTs scavenge radical oxygen species (ROS) depending on their morphology. ROS production has been utilized for toxicological evaluations. The present work specifically investigates ROS scavenging capabilities using the series of CNTs and their derivatives with surface modifications. Those ROS scavenging properties were measured by ESR with 5, 5-Dimethyl-1-pyrroline N-oxide (DMPO). Highly crystallized, mechanically chopped, and mechanically de-bulked CNTs were evaluated. Furthermore, their surface modification by nitric acid and ozone was compared with untreated CNTs.

UR - http://www.scopus.com/inward/record.url?scp=84881114631&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881114631&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84881114631

SN - 9781482205862

VL - 3

SP - 449

EP - 452

BT - Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013

T2 - Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013

Y2 - 12 May 2013 through 16 May 2013

ER -

ROS evaluation for series of CNTs using the ESR method and the effects of CNT morphology

Abstract

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All Science Journal Classification (ASJC) codes

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