Title of article
Multiwalled carbon nanotubes grafted chitosan nanobiocomposite: A prosperous functional nanomaterials for glucose biosensor application
Author/Authors
Gomathi، نويسنده , , Palanisamy and Kim، نويسنده , , Min Kwan and Park، نويسنده , , Jung Je and Ragupathy، نويسنده , , Dhanusuraman and Rajendran، نويسنده , , Annamalai and Lee، نويسنده , , Soo Chool and Kim، نويسنده , , Jae Chang and Lee، نويسنده , , Sang Hak and Ghim، نويسنده , , Han Do، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
6
From page
897
To page
902
Abstract
Multiwalled carbon nanotubes (MWNTs) grafted chitosan (CS) nanowire (NW) was prepared by phase separation method. Glucose oxidase (GOx) was sequentially immobilized into MWNT-CS-NW to obtain MWNT-CS-NW/GOx biosensor. Field emission scanning electron microscopy (FESEM) images of MWNT-CS-NW/GOx reveals the existence of MWNT and CS. Cyclic voltammetry and amperometry were used to evaluate the electrochemical determination of glucose. The MWNT-CS-NW/GOx biosensor shows an excellent performance for glucose at +0.34 V with a high sensitivity (5.03 μA/mM) and lower response time (3 s) in a wide concentration range of 1–10 mM (correlation coefficient of 0.9988). In addition, MWNT-CS-NW/GOx biosensor possesses better reproducibility, storage stability and there is negligible interference from other electroactive components.
Keywords
Nanowire , MWNT , Biosensor , Glucose , Biocompatibility , Electroactivity
Journal title
Sensors and Actuators B: Chemical
Serial Year
2011
Journal title
Sensors and Actuators B: Chemical
Record number
1439740
Link To Document