TY - GEN
T1 - Pt based nanocomposites for direct glucose determination sensitive nonenzymatic amperometric glucose detection by carbon supported PtAu based bimetallic nanomaterials
AU - Singh, Baljit
AU - Dempsey, Eithne
PY - 2011
Y1 - 2011
N2 - Carbon supported PtAu based bimetallic nanomaterials were synthesized, heat treated (450°C, 2 hrs) and characterised using scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDX), thermo-gravimetric analysis (TGA) and X-ray diffraction (XRD). Cyclic voltammetry was employed in order to confirm the typical metallic electrochemical response of the materials and hydrodynamic amperometry was employed for direct glucose determination. The optimised nanocomposite material (Pt 1Au 3/C) exhibited excellent sensitive response (27.0 μA mM - 1cm -2, LoD 2.9 μM) towards glucose electro-oxidation, over the range 0-10 mM at E app = 0.35 V vs Ag/AgCl under neutral conditions (pH 7.4). Overall, the materials demonstrated sensitive and reproducible responses, while eliminating the pH, temperature and lifetime issues associated with enzyme based electrodes and are of great promise in the quantification of glucose in real analysis.
AB - Carbon supported PtAu based bimetallic nanomaterials were synthesized, heat treated (450°C, 2 hrs) and characterised using scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDX), thermo-gravimetric analysis (TGA) and X-ray diffraction (XRD). Cyclic voltammetry was employed in order to confirm the typical metallic electrochemical response of the materials and hydrodynamic amperometry was employed for direct glucose determination. The optimised nanocomposite material (Pt 1Au 3/C) exhibited excellent sensitive response (27.0 μA mM - 1cm -2, LoD 2.9 μM) towards glucose electro-oxidation, over the range 0-10 mM at E app = 0.35 V vs Ag/AgCl under neutral conditions (pH 7.4). Overall, the materials demonstrated sensitive and reproducible responses, while eliminating the pH, temperature and lifetime issues associated with enzyme based electrodes and are of great promise in the quantification of glucose in real analysis.
UR - https://www.scopus.com/pages/publications/84858025028
U2 - 10.1149/1.3655514
DO - 10.1149/1.3655514
M3 - Conference contribution
AN - SCOPUS:84858025028
SN - 9781607682851
T3 - ECS Transactions
SP - 75
EP - 91
BT - Fullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting
T2 - 219th ECS Meeting
Y2 - 1 May 2011 through 6 May 2011
ER -