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Overview of different magnetic beads and the corresponding maximum force that can be exerted using the current magnetic tweezers
| Bead type | Diameter μm | Volume magnetization kAm−1 | Force* pN |
|---|---|---|---|
| DynaBeads-M280 (Dynal) | 2.80 | 11.5 | 1000 |
| MyOne (Dynal) | 1.05 | 28.4 | 150 |
| 47% γ-Fe3O4 (Bangs Labs) | 0.35 | 65.0 | 12 |
| 100% Iron | 0.10 | 1.7 × 103 | 7 |
Forces for current tweezers. Maximum forces for optimized tweezers are expected to be three times higher.
