Electrochemical modified Pt nanoflower @ rGO for non- enzymatic electrochemical sensing of glucose

• Published in: Sensors and actuators. A. Physical. Vol. 353; p. 114232
• Main Authors: Gengan, Saravanan, Gnanamuthu, R.M., Sankaranarayanan, Sanjay, Reddy, Venumbaka Maneesh, Marepally, Bhanu Chandra, Biroju, Ravi Kumar
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 16.04.2023
• Subjects: Facile electrodeposition; Nonenzymatic glucose sensor; Pt nanoflowers; Reduced graphite oxide; Scanning electron microscope; Pt nanoflowers; Facile electrodeposition; Reduced graphite oxide; Scanning electron microscope; Nonenzymatic glucose sensor
• ISSN: 0924-4247; 1873-3069
• DOI: 10.1016/j.sna.2023.114232

Since lower danger of biorecognition element degradation, enzymes-less glucose have the potential for more reliable in vivo activity, but it suffers due to lack of linear response and poor selectivity. We made attempt to improve selectivity, linear response and stability, environmentally benign electrochemical method adopted to fabricate Pt nanoflowers (PtNF) anchored on rGO modified GCE (PtNF-rGO/GCE). The PtNF-rGO/GCE electrode demonstrated good glucose electrooxidation in alkaline solution, with a linear range, sensitivity and detection limit are up to 3.5 mM, 335.5 μA mM−1 cm−1 and 53 μM (S/N = 3) respectively. The PtNF-rGO/GCE electrode is not only selective also inhibit interfering molecules like uric, dopamine, ascorbic acid. This allows for broadly sensitive, work at low-potential, stable, and quick glucose current detection, which is capable for the expansion of non-enzymatic glucose detectors. [Display omitted] •Greener electrochemical approach for the fabrication of non-enzymatic PtNF-rGO/GCE glucose sensor was carried out.•The modified PtNF-rGO/GCE sensor electrode demonstrated excellent sensor property for glucose in terms of sensitivity, stability, and selectivity.•Low LOD was found to be 53 μM.•Organic soft drink sample analysis was carried out.