Fig. 1: Development of a soft, wireless gastric optogenetic implant with a pre-curved, sandwiched tether. | Nature Communications

Fig. 1: Development of a soft, wireless gastric optogenetic implant with a pre-curved, sandwiched tether.

From: Organ-specific, multimodal, wireless optoelectronics for high-throughput phenotyping of peripheral neural pathways

Fig. 1

a Illustration of a soft, wireless gastric optogenetic implant with a pre-curved, sandwiched tether. b Image of wireless LED operation in the stomach; scale bar 5 mm. c Procedures for device fabrication; scale bar 5 mm. d Three-dimensional modeling of the mechanics for the pre-curved, sandwiched structure. e Plots of output power vs. curvatures of a tether. The legend numbers represent the curvature of the device as the length of the arc for a radius of 2 mm (see Supplementary Fig. 3 for equation); smaller numbers represent sharper U-shape angle. f Measurement results of device lifetime cycling test for both structures when strain applied in the horizontal (top) and vertical direction (bottom). g Measurements of device lifetime for the pre- and post-curved structure when implanted (pre-curved, n = 8; post-curved, n = 8). Bar graphs are mean ± SEM. Statistical comparison was made using two-tailed t test; ***p < 0.001.

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