Fig. 6
From: Advances in medical adhesives inspired by aquatic organisms’ adhesion
Mechanical interlocking-based adhesion system inspired by endoparasitic worms. a Photograph of the inflated proboscis of Pomphorhynchus laevis (Scale bar: 100 μm). Reproduced/edited from Reference [68] with permission. b Illustration showing mechanical interlocking of the double-layered microneedle with a water-responsive tip following its penetration into skin tissue