Bi-stable part is one of the core achievements of PKU07 iGEM team. We inherited the part and utilized it to function as a memorizer in our own system. This bi-stable module can be stabilized as either of the two states in a relatively long period of time without any external stimuli, while under certain circumstances, one state can be turned over to the other. These two properties meet the requirements as a memorizer in our system. The two states can be utilized as two states of a memory, and the alteration from one state to the other functions as the process of a memory foundation. Moreover, the natural switchover from one state to the other can accurately mimic the oblivion phenomenon.
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