Title :
Improved enzyme immobilization for enhanced bioelectrocatalytic activity of choline sensor
Author :
Wang, Y.T. ; Wang, Jiacheng ; Peng, Hua ; Zhu, J.Z.
Author_Institution :
Inst. for Adv. Interdiscipl. Res., East China Normal Univ., Shanghai, China
Abstract :
A highly sensitive and stable choline sensor based on the synergetic effect of multi-walled carbon nanotubes and ZnO nanoparticles has been developed. This nanomaterials-based choline sensor was highly sensitive and showed good stability over a relatively long-term storage (90 days). The sensor prepared showed a linear response range of 1.0 μM to 0.8 mM, a sensitivity of 178 μAmM-1 cm-2 and a detection limit of 0.3 μM.
Keywords :
II-VI semiconductors; carbon nanotubes; catalysis; catalysts; electrochemical sensors; electrochemistry; enzymes; nanoparticles; nanosensors; wide band gap semiconductors; zinc compounds; ZnO-C; enhanced bioelectrocatalytic activity; improved enzyme immobilization; multiwalled carbon nanotube; nanomaterial-based choline sensor; nanoparticle; stability; synergetic effect; time 90 year; Biochemistry; Biosensors; Carbon nanotubes; Electrodes; Sugar; Thermal stability; Zinc oxide; Choline Biosensor; Choline Oxidase; Multi-Wall Carbon Nanotubes; Synergic Action; ZnO Nanoparticles;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6626775
