Title :
Surface functionalization of multiwalled carbon nanotube for biosensor device application
Author :
Fatin, M.F. ; Ruslinda, A. Rahim ; Arshad, M. K. Md ; Hashim, U. ; Norhafizah, S. ; Farehanim, M.A.
Author_Institution :
Inst. of Nano Electron. Eng., Univ. Malaysia Perlis, Kangar, Malaysia
Abstract :
CNT has been widely known for its excellent electrical and thermal conductivities. However, these desirable properties are limited for application due to the inertness of CNT. This work emphasize on a simple and practical method of MWCNT functionalization by sonication in mild acid condition. A mixture of nitric acid and sulfuric acid in ratio of 1:3 were demonstrated as an oxidizing agent to introduce carboxyl functional group on MWCNTs surface. The chemical bonding and surface morphology were examined using FTIR and SEM respectively and indicates a successful functionalization of carboxyl functional group. This work will be further developed for application of functionalized MWCNT for biosensor device.
Keywords :
biosensors; bonds (chemical); carbon nanotubes; nanobiotechnology; nanosensors; oxidation; surface morphology; surface treatment; C; FTIR; SEM; biosensor device application; carboxyl functional group; chemical bonding; electrical conductivity; mild acid condition; multiwalled carbon nanotube; nitric-sulfuric acid mixture; oxidizing agent; sonication; surface functionalization; surface morphology; thermal conductivity; Biosensors; Carbon; Carbon nanotubes; Chemicals; Oxidation; Surface morphology; Surface treatment; carboxyl group; mild acid; surface functionalization;
Conference_Titel :
Semiconductor Electronics (ICSE), 2014 IEEE International Conference on
Conference_Location :
Kuala Lumpur
DOI :
10.1109/SMELEC.2014.6920876
