Table 2.
The residual weight at 700 °C from thermogravimetric analysis (TGA) and the Fe3O4 content determined from inductively coupled plasma-optical emission spectrometry (ICP-OES) and superconducting quantum interference device (SQUID).
| Sample 1 | Residual Weight from TGA (%) | Fe3O4 from ICP-OES (%) |
Fe3O4 from SQUID (%) |
|---|---|---|---|
| MNP | 97.9 | 97.8 ± 1.6 | 100.0 ± 0.05 |
| OMNP | 87.7 | 87.1 ± 2.1 | 90.9 ± 0.11 |
| PMNP | 14.0 | 13.5 ± 0.3 | 15.5 ± 0.06 |
| PMNP-avidin | 13.4 | 12.3 ± 0.8 | 14.4± 0.11 |
| PMNP-rtPA | 17.1 | 10.5 ± 0.3 | 13.3 ± 0.07 |
| pPMNP-rtPA | 16.9 | 10.1 ± 0.4 | 13.5 ± 0.07 |
1 MNP: iron oxide magnetic nanoparticles, OMNP: oleic acid coated magnetic nanoparticles, PMNP: PLGA magnetic nanoparticles, PMNP-avidin: avidin-conjugated PLGA magnetic nanoparticles, PMNP-rtPA: rtPA-conjugated PLGA magnetic nanoparticles, pPMNP-rtPA: peptide/rtPA-conjugated PLGA magnetic nanoparticles.