from Part VII - Lab-on-a-chip
Published online by Cambridge University Press: 05 September 2015
Introduction
There is an opportunity for greatly increased synergy between electronics andbiology, fostered by the march of electronics technologies to the atomicscale, and by rapid advances in system, cell, and molecular biology. Theconvergence of biology and electronics has the potential for significantimpacts on many areas important to national economies and well-being,including healthcare and medicine, homeland security, forensics, andprotecting the environment and the food supply. Electrochemical biosensorsare label-free detection, which eliminates the external labels or indicatorsand greatly shortens the assay time. They are widely used for the detectionof protein binding events, hybridized DNA, neuron tissue, bacteria, andenzyme reactions.
Miniaturized sensor arrays are capable of parallel analysis of multipleparameters. Because of the distinct advantages of microsystem platforms,there has been a trend to integrate sensor arrays onto the surface ofsilicon chips and perform measurement using on-chip CMOS electronics[1–3]. At the same time, there is a great opportunity to expandlab-on-a-chip solutions that replace bulky benchtop sample analysis toolswith simple, low-power, portable systems. The fabrication compatibilitybetween many bio/chemical sensor interfaces and CMOS technology makesa CMOS circuit an outstanding candidate for a silicon-based lab-on-chipsolution [4].
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