Design and Simulation Analysis of Piezoresistive Microcantilever Beam for Glucose Sensing

Abstract

The importance of micro biomedical instrument has been grown in high rate and faster than in previous decades. This acceleration was primary due to, the increase and demand for high quality medical care in the developed countries, and also due expansion in Microelectromechanical System (MEMS) technologies. The Measurement of glucose is the great and important in diagnosis, especially in the essential of continuous monitoring for patients are suffering from diabetes mellitus which is caused by the frequencies levels of glucose in human physiological fluid.This research focuses on the design , simulation and analysis for a Piezoresistive Microcantilever of Glucose Sensing.The adsorption of glucose in the surface of the cantilever will cause a surface stress and consequently the cantilever bending,and bending analysis is performed, that the microcantilever tip deflection could be predicted.This model simulated with a finite element analysis tool designed specifically for (MEMS) applications. The Design used different materials and analyzed the main characteristics with the package (ANSYS).The Structural variation of the piezoresistor design’s on microcantilever is also considered to increase the sensitivity of the microcantilevers sensor since the forces involved is very small.