Table 4.
Effect of lyophilization of fresh tumor-derived lysate on encapsulation. Limited availability of fresh tumor material resulted in a relatively dilute lysate. However lyophilization enabled increase in the extent of encapsulation.
| Protein concentration of lysate (μg/μl) | Volume of lysate (μl) | Type of lysate* | Protein content of starting lysate (μg) | Weight of NP used for encapsulation (mg) | Protein content of NP (μg/mg) | Encapsulation efficiency (%) | |
|---|---|---|---|---|---|---|---|
| 32.5 | 50 | S | 1625 | 50 | 14 | 43.1% | |
| 23 | 100 | L | 2300 | 50 | 19.6 | 42.6% |
S= Soluble; L=Lyophilized