Fig. 2From: Multi-functional self-assembly nanoparticles originating from small molecule natural product for oral insulin delivery through modulating tight junctionsUV–vis spectrum of BA and BA-Al NPs (a); ESI-HRMS spectrum of BA and BA-Al NPs (b); CD spectra of BA and BA-Al NPs (c); FT-IR spectra of BA and BA-Al NPs (d); XRD pattern of BA and BA-Al NPs (e); ITC raw data and fitted curve of BA solution titrated by AlCl3 solution (f)Back to article page