Title :
Electroactivity of chemical and plasma modified single-walled carbon nanotubes to application of glucose detection
Author :
Kim, Joon Hyub ; Jin, Joon-Hyung ; Lee, Jun-Yong ; Park, Chan Won ; Min, Nam Ki
Author_Institution :
Dept. of Biomicrosystem Technol., Korea Univ., Seoul, South Korea
Abstract :
Acid treatment to the carbon nanotubes (CNTs) is widely used to produce chemical functional group-substituted CNTs. However, more effective substitution of chemical functional groups is available with the O2 plasma treatment because the O2 plasma targets not only the end position but also the side-wall region of the CNTs. Amperometric results from glucose oxidase (GOD)-modified CNT electrodes confirmed that at least two times of larger effective working electrode area was observed with the O2 plasma treatment as compared to the acid treatment.
Keywords :
biosensors; carbon nanotubes; electrochemical electrodes; electrochemical sensors; electrochemistry; enzymes; molecular biophysics; nanofabrication; plasma materials processing; surface treatment; C; CNT end position; CNT side wall region; GOD modified CNT electrodes; SWCNT electroactivity; acid treatment; amperometric measurements; chemical functional group substituted CNT; chemically modified SWCNT; glucose detection; glucose oxidase modified CNT electrodes; oxygen plasma treatment; plasma modified SWCNT; single walled carbon nanotubes; Carbon nanotubes; Chemicals; Electrodes; Plasmas; Sensitivity; Surface cleaning;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2011 11th IEEE Conference on
Conference_Location :
Portland, OR
Print_ISBN :
978-1-4577-1514-3
Electronic_ISBN :
1944-9399
DOI :
10.1109/NANO.2011.6144362
