Table 2. Fitted XRR parameters for different lipid compositions at 40 mN m−1. σ is roughness, V is molecular volume and d is thickness of the indicated slab, nw is the number of water molecules per lipid and AM is the molecular area. The CL-containing monolayer values are given per pair of chains to facilitate comparison. The numbers in brackets represent 95% confidence ranges from the fits.
| σ/ Å (fixed) | V tail/Å3 (fixed) | d tail/Å | d hg/Å | n w | V hg/Å3 | A M/Å2 | |
|---|---|---|---|---|---|---|---|
| DMPG | 4.2 | 668 | 16.2 (16.1–16.3) | 8.0 (7.7–8.3) | 0.5 (0.5–0.6) | 312 (297–323) | 41.2 (40.6–41.8) |
| PE : PG 50 : 50 | 4.2 | 660 | 16.2 (16.1–16.4) | 7.8 (7.5–8.2) | 0.9 (0.8–1.1) | 291 (273–309) | 40.7 (40.2–41.1) |
| PE : PG 80 : 20 | 4.18 | 668 | 16.4 (16.2–16.5) | 7.4 (7.0–7.7) | 0.7 (0.6–0.7) | 282 (266–297) | 40.8 (40.1–41.5) |
| PE : CL 95 : 5 | 4.15 | 655 | 16.3 (15.9–16.6) | 7.5 (6.6–8.4) | 1.9 (1.7–2.1) | 244 (204–285) | 40.2 (39.0–41.3) |
| PE : CL 80 : 20 | 4.13 | 664 | 16.4 (16.2–16.7) | 7.2 (6.5–7.8) | 0.9 (0.4–1.3) | 264 (238–285) | 40.5 (39.7–41.2) |
| TMCL | 4.2 | 667.5 | 16.5 (16.3–16.7) | 6.0 (6.0–6.6) | 1.3 (1.2–1.4) | 204 (197–230) | 40.4 (39.9–41.1) |
| PE : PG : CL 80 : 15 : 5 | 4.15 | 668 | 16.3 (16.2–16.5) | 7.4 (7.0–7.8) | 0.8 (0.7–0.9) | 280 (262–297) | 40.8 (40.1–41.5) |
| PG : CL 75 : 25 | 4.15 | 672 | 16.3 (16.1–16.6) | 7.4 (6.8–7.9) | 0.3 (0.2–0.5) | 293 (269–309) | 41.1 (40.4–41.7) |
| PG : CL 50 : 50 | 4.15 | 671 | 16.5 (16.3–16.7) | 7.0 (6.5–7.5) | 0.2 (0.0–0.5) | 279 (262–295) | 40.7 (40.1–41.3) |