(b) SANS data collection.

	SAXS	SANS
Data-acquisition/reduction software	Bruker software	Igor Pro software (WaveMetrics, Lake Oswego, Oregon, USA) and the SANS macros developed at the NCNR (Kline, 2006 ▸)
Source/instrument description	Bruker Nanostar with a HiStar 2D detector, 100 µm pixel size	NG3 30 m SANS (NIST) with Ordella 640 × 640 mm 3He position-sensitive detector (Glinka et al., 1998 ▸)
Measured q-range(s) (q min–q max) (Å−1)	∼0.017–0.34	q-range 0.03–0.45 and 0.01–0.09 for S-D 1.33 and 5 m, respectively
Method for scaling intensities	Arbitrary units (a.u.)	Absolute (cm−1) with respect to direct beam intensity
Exposure time(s) (all single exposures)	1 h	Collection times for S-D 5.0 m: 2 h for 0%, 10%, 20%, 40% D2O, 1 h for 80%, 90%, 100% D2O for the 11.9 and 26.6 mg ml−1 samples. For S-D 1.33 m the SAS measurement times were half of those for S-D 5.0 m.
Additional relevant details
Wavelength (Å), Δλ/λ (FWHM)	1.5406	5.82, 14.3%
Beam geometry, sample-to-detector distance (S-D)	Pinhole collimation, S-D 0.7 m	Source aperture 50 mm, sample aperture 9.5 mm. S-D 1.33 m (detector offset by 25.00 cm) and 5.00 m (detector centred).