What are biosensors?
Selectivity of biochemical materials and reactions with electrochemical transducers can be combined to give highly selective biosensors for biological biochemical compounds. Enzymes, DNA, antigens, antibodies, bacteria, cells and whole animal/plant tissue. When analyte molecules react with these biological materials, triggers production of species that can be monitored directly or indirectly by ion- or molecular selective electrodes. Selectivity advantage counterbalanced by disadvantage of limited stability of many biochemical substances.