Table 1.
Rate and equilibrium constants calculated by multivariate data fitting.
Constant | DL-1-SO3 | LD-1-SO3 | DD-1-SO3 |
---|---|---|---|
| |||
Kgs (mM−1) | 1.31×101 | 2.19×101 | 4.52×101 |
| |||
k̃cat (mM·min−1) | 2.63×10−2 | 2.78×10−1 | 6.38×10−3 |
KM (mM) | 20.3 | 31.1 | 6.58 |
ζ | 0.96 | 1.13 | 1.98 |
| |||
kin (min−1) | 5.06×10−2 | 5.06×10−2 | 5.06×10−2 |
kout (min−1) | 0.79×10−2 | 0.79×10−2 | 0.79×10−2 |
δM | 0.83 | 0. 83 | 0. 83 |
δC | 15.7 | 15.7 | 15.7 |
| |||
kk0 (min−1) | 2.11×10−3 | 2.97×10−3 | 6.29×10−3 |
σ (mM−1) | 0.48 | 1.24 | 3.69 |
[GC]tr (mM) | 2.99 | 2.29 | 1.30 |
Kgs: equilibrium constant for the gelation process; k̃cat: catalytic rate constant; KM: Michaelis-Menten constant; ζ: gel-specific constant representing the average number of empty sites in the gel structure per molecule of hydrogelator available for the inclusion of one precursor; kin and kout: transport rate constants; δM: ratio of enzyme concentration in the culture medium to enzyme concentration used in the hydrolysis experiment; δC: ratio of enzyme concentration in the cell to enzyme concentration used in the hydrolysis experiment. [GC]tr (a threshold value), kk0 (a plateau value) and σ (slope) of the killing efficacy curve. Known parameters: kd: HeLa cell doubling rate constant which is 4.81×10−4 min−1; kg: gelation rate constant which is 105 min−1.