Research Article
Biocompatibility and Toxicity of Polylactic Acid/Ferrosoferric Oxide Nanomagnetic Microsphere
Table 1
Results of MTT test of PLA/ Fe3O4 magnetic microspheres for 7701 cell.
| | Group | A490 () | Inhibition rate (%) | Relative growth rate (%) | Toxicity grading |
| | Negative control (DMEM) | | | 100 | 0 | | 5% PLA/Fe3O4 nanomagnetic fluid | | 1 | 99 | 0 | | 25% PLA/Fe3O4 nanomagnetic fluid | | −2 | 102 | 0 | | 50% PLA/Fe3O4 nanomagnetic fluid | | 2 | 98 | 1 | | 75% PLA/Fe3O4 nanomagnetic fluid | | −3 | 103 | 0 | | 100% PLA/Fe3O4 nanomagnetic fluid | | 4 | 96 | 1 | | Positive control (polyacrylamide) | | 76 | 24 | 4 |
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versus positive control group.
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