Fig. 1: The characterization of EMNPs’ structure. | NPG Asia Materials

Fig. 1: The characterization of EMNPs’ structure.

From: Real-time manipulation of intestinal peristalsis by enteric-encapsulated magnetic nanoparticles & wearable 3D-printed devices

Fig. 1: The characterization of EMNPs’ structure.

a Illustration of how EMNPs could be used as a new method to replace irreversible bariatric surgery (RYGB). b TEM image of MNPs. c TEM image of EMNPs. The scale bar is 50 nm. The blue part represents the membrane of the enteric capsule, and the purple part represents the MNPs. d XRD data of the EMNPs, MNPs and E-capsule (enteric capsule). e Reaction of the enteric capsule in different solutions (water, saline, pH = 6.5 (simulated intestinal fluid) and pH = 1.0 (simulated gastric fluid)) to form water-miscible liquids; all except simulated gastric fluid. f Optical diagram of a 3D-printed elastic device with an H-field. The inset shows a customized wearable elastic device model, which was digitally designed for 3D-printing techniques. g Optical photographs of C57BL/6 mice (left) and SD rats (right) with the wearable weight-loss device

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