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Figure 1
(a) Microfluidic experimental setup on the Xeuss 2.0 SAXS/WAXS Laboratory Beamline. (b) Representative 2D WAXS patterns from the flow of water-in-oil droplets within the device collected with 0.5 s exposures. The zoomed-in inset shows a possible reflection from the (104) plane of calcite formed during a rapid precipitation process within the droplets. (c) Integrated 1D diffraction pattern of the right frame of (b) showing that the possible 104 reflection was not preserved during data reduction. (d) Representative 2D SAXS patterns collected from 0.5 s exposures that show the characteristic scattering of oil and water droplets containing silica nanoparticles. The insets illustrate the path of the X-ray beam through the microchannel, either encountering the continuous oil phase or a droplet containing nanoparticles. (e) Serial 2D (left) and 1D (right) SAXS patterns of silica nanoparticles obtained from automated combination of multi-frame scattering data (30 s cumulative exposure time). The dotted line is a polydisperse sphere form factor fitted to the I(q) curve taking into account beam convolution.

IUCrJ
Volume 9| Part 5| September 2022| Pages 538-543
ISSN: 2052-2525
https://doi.org/10.1107/S2052252522007631