RT Journal Article
A1 S.M.U. Ali
A1 M. Kashif
A1 Z.H. Ibupoto
A1 M. Fakhar-e-Alam
A1 U. Hashim
A1 M. Willander

PB iet
T1 Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose
JN Micro & Nano Letters
VO 6
IS 8
SP 609
OP 613
AB In the present study, highly oriented single-crystal zinc oxide nanotube (ZnO-NT) arrays were prepared by a trimming of ZnO nanorods along the c-axis on the gold-coated glass substrate having a diameter of 100–200 nm and a length of ∼1 µm using a low-temperature aqueous chemical growth process. The prepared (ZnO-NT) arrays were further used as electrochemical enzyme-based glucose sensors through immobilisation of glucose oxidase by the physical adsorption method in conjunction with a Nafion coating. The electrochemical response of the sensor was found to be linear over a relatively wide logarithmic concentration range from 0.5×10−6 to 12×10−3 M. The proposed sensor showed a high sensitivity of 69.12 mV/decade with R=0.9934 for sensing of glucose. A fast-response time less than 4 s with good selectivity, reproducibility and negligible response to common interferents such as ascorbic acid and uric acid prevailed.
K1 fast-response time
K1 ZnO
K1 electrochemical response
K1 electrochemical sensors
K1 functionalised zinc oxide nanotube arrays
K1 ZnO nanorod trimming
K1 SiO2-Au
K1 ascorbic acid
K1 SiO2
K1 electrochemical enzyme-based glucose sensors
K1 physical adsorption method
K1 low-temperature aqueous chemical growth process
K1 size 100 nm to 200 nm
K1 uric acid
K1 gold-coated glass substrate
K1 highly oriented single-crystal zinc oxide nanotube arrays
K1 glucose oxidase immobilisation
K1 glucose sensing
K1 Nafion coating
K1 glucose selective determination
DO https://doi.org/10.1049/mnl.2011.0310
UL https://digital-library.theiet.org/;jsessionid=6arhl2rkkyn.x-iet-live-01content/journals/10.1049/mnl.2011.0310
LA English
SN
YR 2011
OL EN