Table 1.
Release kinetics for oxygen generating particles. To describe the release rates of SPO and CPO, oxygen release measurements were fit to the following equation: C=C*(1-e−ϰt) + Cstart·e−ϰt, which has been previously used to describe the release rates of solid peroxides, including calcium peroxide and sodium percarbonate. In the equation, C is the concentration of O2 (described here as the percentage of the total oxygen released), C* is saturation concentration of O2 (also described here as the percentage of the total oxygen released), Cstart is the initial concentration of oxygen, ϰ is the release rates (h−1), t is the time (h). Since the starting solution for these experiments was degassed the initial concentration of oxygen is 0 mg/L, reducing the equation to: C=C*(1-e−ϰt).
| Group | ϰ (h−1) | Cmax (%) | r2 |
|---|---|---|---|
| SPO, 4°C | 0.136 | 36.2 | 0.82 |
| SPO, 37°C | 0.428 | 17.8 | 0.99 |
| SPO, 4°C + catalase | 5.73 | 91.8 | 0.92 |
| SPO, 37°C + catalase | 21.68 | 91.0 | 0.99 |
| Paraffin-coated SPO, 4°C + catalase | 1.75 | 69.3 | 0.98 |
| Paraffin-coated SPO, 37°C + catalase | 5.31 | 66.3 | 0.78 |
| Oxygen Generating Culture Wells | 0.01 | 32.9 | 0.96 |
| Encapsulated CPO | 0.04 | 21.1 | 0.982 |