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Surface coverage of PEG-lipids determined through 1H NMR. The surface density σ is the inverse of the surface area per PEG-lipid.
| Particle type | Mass of sample (mg) | Calculated PEG-lipid mass (mg) | Mean MP diameter (μm) | Surface area (nm2) per PEG-lipid* |
|---|---|---|---|---|
| mPEG2000-DSPE | 3 | 0.025 | 1.22 | 1.84 ± 0.05 |
| mPEG5000-DSPE | 3.3 | 0.02 | 1.29 | 4.85 ± 0.15 |
Error is from the standard deviation of the slope in the linear regression used to determine PEG-lipid content.
