基金We acknowledge European Synchrotron Radiation Facility （ESRF） and their staff, in particular Dr. Daniel Hermida Merino, as well as the Netherlands Organisation for Scientific Research （NWO） for providing and supporting beam time at the DutchBelgium beamline （DUBBLE） for SAXS experiments （No. BM26-02773）. We acknowledge financial support from NWO （VENI grant No. 680-47-437） and the Euopean Union＇s 2020 Research and Innovation Programme under Grant Agreement No. 642687, project Biogel.