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Characteristics of the considered ultrasound CA and dual-mode CAs.
| CA name | characteristics | application | SPIONs, % (w/w) |
|---|---|---|---|
| MB-plain | no SPIONs (unloaded) | UI | 0 |
| MBN-into15 | SPIONs physically embedded into the shell | MRI and UI | 15 |
| MBN-into38 | SPIONs physically embedded into the shell | MRI and UI | 38 |
| MBN-on29 | SPIONs chemically linked to the shell | MRI and UI | 29 |
