Reduced Graphene Oxide Based Electrochemical Nonenzymatic Human Serum Glucose Sensor

Medha Gijare, 1

Sharmila Chaudhari, 2

Satish Ekar 1 

Anil Garje3*Email

1Baburaoji Gholap College, Pune, Maharashtra, India

2Anantrao Pawar College, Pirangut, Pune, Maharashtra, India

3Sir Parashurambhau College, Pune, India.

Abstract

Present work proposes green synthesis of reduced graphene oxide using lemon peel extract(vitamin-c) and its application as an electrochemical nonenzymatic human serum glucose sensor. Improved modified  Hummer’s method  was preferred for the preparation of graphene oxide. XRD, UV-Vis and XPS analysis revealed the successful reduction of GO using lemon peel extract. FESEM, FTIR and Raman spectroscopy supports the formation of rGO nanosheets. The proposed glucose sensor exhibit high sensitivity of 1402μA.cm−2.mM−1 (S/N=3) along with correlation coefficient of 0.9887 and low detection limit of 0.011μM.The sensor has detected  glucose with RSD of 1.99% in human blood serum. The measured values are well agreed with the values obtained using professional  glucose sensor used in hospitals.

Reduced Graphene Oxide Based Electrochemical Nonenzymatic Human Serum Glucose Sensor