Journal
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Volume 99, Issue -, Pages 951-956Publisher
ELSEVIER
DOI: 10.1016/j.msec.2019.02.040
Keywords
Glucose detection; Pt/Ni@rGO; Nanocomposite; Non-enzymatic sensor; OH- ligands
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Funding
- Dumlupinar University [2014-05]
- BAGEP Award of the Science Academy
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An electrochemical non-enzymatic sensor was developed for the detection of glucose based on an electrode modified with monodisperse platinum-nickel nanocomposites-decorated on reduced graphene oxide (Pt/NigrGO) which was synthesized using a new ultrasonic hydroxide assisted reduction method. Because the nano composites prepared by using NaOH (OH- ligands) are much smaller nanocomposites on the supports compared to the ones without OH- ligands. Such a monodisperse Pt/Ni@rGO nanocomposites-based electrode exhibited a high electrochemical activity for electrocatalytic oxidation of glucose in alkaline solution. Amperometric analysis showed a glucose sensitivity of 171.92 mu A/mM cm(2) of, the detection limit of 6.3 mu M and a linear range of 0.02-5.0 mM glucose concentration. Fabricated sensor platform demonstrated long-term stability and good reproducibility, in addition to high selectivity.
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