1. Non-enzymatic sensing of glucose using screen-printed electrode modified with novel synthesized CeO 2 @CuO core shell nanostructure.
- Author
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T D, Rao KV, Bikshalu K, Malapati V, and Sadasivuni KK
- Subjects
- Catalysis, Electrodes, Humans, Limit of Detection, Nanostructures ultrastructure, Ocimum sanctum chemistry, Plant Extracts chemistry, Biosensing Techniques methods, Blood Glucose analysis, Cerium chemistry, Copper chemistry, Electrochemical Techniques methods, Nanostructures chemistry
- Abstract
We fabricated a fourth generation glucose biosensor using CeO
2 @CuO core shell nano structure (CeCCS NSs). A simple leave extract of Ocimum tenuiflorum was used to prepare different wt% of 0.2, 04, 0.6, and 0.8 CuO (shell), above 1 wt% of CeO2 (core). The successful formation was confirmed by various characterization techniques like XRD, Uv-Vis, FTIR, SEM and HR-TEM. In the biosensor, 0.4 wt% of CeCCS NSs has shown efficient properties due to its high surface area. The good conductivity and high catalytic activity towards glucose sensing properties were estimated by screen-printed electrode (SPE). The ampherometric studies of CeCCS/SPE modified electrode have been optimized at potential + 0.4 V, showed a sensitivity of 3319.83 μAm M-1 cm-2 within detection limit of 0.019 μM. More significantly, modified electrodes performed excellently against anti-interference and anti-poisoned activity in glucose sample and exhibited promising results for the sustainable improvement for non-enzymatic sensing applications., (Copyright © 2018 Elsevier B.V. All rights reserved.)- Published
- 2018
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