*1.2.3 Stability*

This is the degree of susceptibility to ambient disturbances in and around the biosensing system [2]. These disturbances can cause a drift in the output signals of a biosensor under measurement. An error can occur in the measured concentration and can affect the precision and accuracy of the biosensor, and stability is the most crucial feature in applications where a biosensor requires long incubation steps or continuous monitoring [2]. The response of transducers and electronics can be temperature-sensitive, and this may likely influence the stability of a biosensor. Therefore, appropriate tuning of electronics is required to ensure a stable response of the sensor. Another factor that can affect the stability is the affinity of the bioreceptor, which is the degree to which the analyte binds to the bioreceptor. Bioreceptors with high affinities encourage either strong electrostatic bonding or covalent linkage of the analyte that fortifies the stability of a biosensor. Also, the degradation of the bioreceptor over some time is another factor that affects the stability of measurement [2].
