Table 2.
Drug loading strategies of BMVs and the results.
| Types | Methods | Cargo | Key results | Ref. |
|---|---|---|---|---|
| OMVs | Incubation | Gentamicin | 4 ng/μg OMVs (protein weight) | [122] |
| Incubation | Gentamicin | 146 μg/ml (unknown in OMVs) | [124] | |
| Incubation | Levofloxacin | 23.2 mg per 1.4 × 1014 OMVs | [125] | |
| Incubation | Dox | 2% (w/w) | [53] | |
| Incubation/genetical | TRAIL; ICG | 632 pg/μg (TRAIL) | [129] | |
| Incubation/electroporation | siRNA; PTX | Unknown | [126] | |
| Cloaking | Tegafur/micelles | 7.1% (w/w) | [121] | |
| Hybrid/cloaking | ICG/NPs | Unknown | [130] | |
| IMVs | Genetically engineering | GFP/OmpA SAcoagulase | Unknown | [51] |
| DMVs | Remote loading | Dox | 12% (w/w) | [20] |
Note: BMVs, bacterial membrane vesicles; OMVs, outer membrane vesicles; IMVs, inner membrane vesicles; DMVs, double membrane vesicles; Dox, doxorubicin; GFP, Green Fluorescence Protein; SAcoagulase, Staphylococcus aureus specific coagulase; ICG, indocyanine green; TRAIL, tumor necrosis factor related apoptosis-inducing ligand; PTX, paclitaxel.