Bioinspired gecko-adhesion 1, 2, 3 employs micro- or nanoscopic artificial setae array to produce Van der Waals interaction for universal adhesion, yet it is mechanically complicated to mimic a gecko’s toe-pad motion to adhere and detach these adhesives. Soft robots empowered with controllable adhesives can benefit from astrictive, tunable, and reversible interfacial attraction to achieve unconventional robotic functionalities. Our materials and iontronic mechanisms pave the way for future advancement in adhesive-enhanced multifunctional soft devices. The grippers can capture soft and deformable items, bear high payload under reduced voltage input, and rapidly release foreign objects in contrast to electroadhesives. Iontronic soft grippers that seamlessly integrate actuation, adhesive prehension, and exteroceptive sensation are devised via additive manufacturing. Through supramolecular design and synthesis, the dual-material system exhibits cohesive heterolayer bonding and autonomous self-healing from damages. We present herein an iontronic adhesive based on a dynamically crosslinked gel-elastomer system, including an ionic organohydrogel as adhesive electrodes and a resilient polyurethane with high electrostatic energy density as dielectric layers. However, the lack of suitable conductive/dielectric materials and processing capabilities have impeded the integration of electroadhesive modules into soft robots requiring both mechanical compliance and robustness. Even though the Reflection Gel was removed in the final version, it can still be accessed by using an editor such as the BEE2 mod, it plays and it acts like it did in the beta versions of Portal 2.Electroadhesion provides a promising route to augment robotic functionalities with continuous, astrictive, and reversible adhesion force.The Reflection Gel replaced the Sticking Gel because it caused players to become nauseous.Instead, they eventually chose to scrap the Reflection Gel and continue with the cube. When the Discouragement Redirection Cube was in works, a choice appeared, they couldn't keep both the Reflection Gel and the Discouragement Redirection Cube.Its purpose was to redirect Thermal Discouragement Beams. The Reflection Gel was created in the works of Portal 2.The Reflection Gel is the fourth type of Mobility Gels that was cut from Portal 2.

Portal 2 adhesion gel