ABSTRACT
Biosensors are finding major applications in areas like environmental monitoring of the biochemical
oxygen demand (BOD) in the healthcare industry for blood glucose monitoring, food and drink
industry to detect food composition, and in the detection of pathogen, and many other vital areas.
Pei et al. [1] very recently indicate that diabetes is among the most prevalent and costly diseases in the
world. In the year 2004 these authors estimated approximately 17 million people in the United States
had diabetes. This is roughly 6.2% of the population. Yonzon et al. [2] further indicate that there are 16
million prediabetics in the United States. The American Diabetic Association [3] indicates that the
economic estimated annual cost of diabetes is $132 billion. There have recently been news reports that
indicate that diabetes is reaching epidemic proportions.
