Phenomenal growth in the field of biosensors has been observed in recent years with applications in a wide range of disciplines, including food, environment and medical analysis. The need for high sensitivity, speed and accuracy of analytical measurements has stimulated considerable interest in developing sensors as diagnostics tools. Substances with recognition powers are available naturally in the form of antibodies, enzymes, cell receptors, nucleic acids and lectins. These can be used as the sensing element in biosensors, and therefore a wide range of analytes can be used as the sensing element in biosensors, and therefore a wide range of analytes can be detected and measured using these devices. A wide range of transducers are also feasible. Biosensors are suitable devices to fulfil the rapid monitoing needs of the diagnostic market.
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