Fig. 4: Asymmetric adhesion performance of Janus hydrogel.
From: Molecular competition induced Janus hydrogel bioelectronic interface for electroceutical modulation
a, b Illustrations and photographs of burst pressure tests. c Burst pressure curves at different SBMA contents (n  =  5 independent samples). d–g Schematic illustrations and force curve of lap shear and 90° peel tests (substrate: skin). h, i Shear strength and interfacial toughness with different biological tissues (n  =  3 independent samples). j, k Adhesion performance of the adhesive side at varied adhesion cycles and substrate stretching at 25% strain. l Images of the Janus hydrogel adhered to biological tissues. h, i Created in BioRender. Shao, J. (2025) https://BioRender.com/luci6pc.
