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Gold Nanobone/Carbon Nanotube Hybrids for the Efficient Nonenzymatic Detection of H 2 O 2 and Glucose
Author(s) -
Jou Amily Fangju,
Tai NyanHwa,
Ho Jaan Annie
Publication year - 2014
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201400140
Subject(s) - ascorbic acid , carbon nanotube , pyrene , urea , electrochemistry , electrode , nanotube , selectivity , electrocatalyst , chemistry , aptamer , carbon fibers , detection limit , scanning electron microscope , chemical engineering , nanotechnology , materials science , nuclear chemistry , catalysis , organic chemistry , composite number , chromatography , food science , composite material , biology , engineering , genetics
We report a facile strategy for the synthesis of gold nanobone/carbon nanotube (CNT@GNB) nanoassemblies, which were prepared through hybridization of CNTs and GNBs mediated by a thiolated pyrene derivative. The SEM images confirmed the successful construction of the CNT@GNB nanoassemblies. Screen printed electrodes modified with the CNT@GNB nanoassemblies exhibited decent electrocatalytic activity, large surface‐to‐volume ratios, high electrochemical reversibility, and efficient electron transport properties, thereby enabling stable and sensitive nonenzymatic detection of H 2 O 2 and glucose, with detection limits of 0.8 µM and 0.07 mM, respectively. Moreover, no interference was observed at a potential of +0.38 V for the interfering species, such as ascorbic acid and urea, indicating high selectivity toward the glucose detection.