Effect of electrochemical glucose sensor based on P doped Cerium sulphide and Ce doped Phosphorous sulphide

Abstract

Nanostructured metal sulphides have importance in interpreting quantum size effect and application in a variety of device such as biosensors, solar cell, light emitting diode, thermoelectric devices, lithium ion batteries, fuel cells and nonvolatile memory devices [1]. These metal sulphides have leading role because of their high sensitivity, low cost, small dimensions and simple integration [2]. Among these metal sulphides, Cerium sulphide and phosphorous sulphide nanoparticles shows significant biosensing characteristics due their electrical conductivity, higher thermal conductivity, higher melting point and good thermal shock resistance. Cerium sulphides are rare earth metals and which are known as good heavy metal color pigments. Some known cerium sulphides are Cerium trisulphide, Cerium monosulphide (CeS) and tri cerium tertasulphide [3]. Cerium Sulfide, Phosphorus Sulfide, Phosphorus doped Cerium Sulfide, and Cerium doped Phosphorus Sulfide were prepared using the green synthesis method. The characterization of Cerium Sulphide, Phosphorus sulfide, Cerium doped Phosphorus Sulphide and Phosphorus doped Cerium Sulfide were done using XRD and SEM. Glucose biosensor application of all these synthesized nanoparticles coated modified graphite electrodes are done by using cyclic voltammetry, double pulse chrono amperometry and impedance spectroscopy under the experimental condition of 0.1M PBS/Glucose solution in presence and absence of hydrogen peroxide solution. These results confirm the considerable and significant glucose sensing property of the nanoparticles.