No Chemical Fuel Precursor Product Deactivator Ref.
1 CH3I -COOH -COOCH3 OH- [21]
2 (CH3)2SO4 -COOH -COOCH3 OH- [22]
3 H2O [23]
4 OH- pH-responsive groups deprotonated counterpart ester [20]
5 H+ pH-responsive groups protonated counterpart urea and urease [24]
6 Cl3CCOOH pH-responsive groups protonated counterpart base [25]
7 ATP and its analogs organic cations electrostatic complex of ATP and cations apyrase [26]
8 Na₂S₂O₄ O2 [27]
9 Na₂S₂O₄ a [28]
10 I2 CS(NH2)2 [29]
11 H2O2 Reductive state of redox-active species oxidative state of redox-active species reductant [30]