Electrosurgical blade from Shaanxi University of Science and Technology has anti-adhesive surface microstructures that reduce drag during an incision.


  • Safer
  • Accurate


  • Medical treatment

UN Sustainable Development Goals Addressed

  • Goal 3: Good Health & Wellbeing

The Challenge

During surgeries and other medical procedures, the skin is cut and then patched back together to assist in healing. In sensitive areas like the eyes, an electrosurgical blade is used to better control the intricacies of the incision. The electrosurgical blade uses an electric current to generate heat to cut through the skin. Unfortunately, the heat can cause skin to adhere to the blade, resulting in unnecessary damage to the skin around the incision, increasing the chance of scarring and infection.

Innovation Details

The anti-adhesive electrosurgical blade is made of 316L stainless steel. The surface of the blade is covered with a series of self-organized microstructures created using a long pulse fiber laser. These microstructures induce an anti-friction and anti-adhesive effect, reducing the amount of damage inflicted during an incision.

Biomimicry Story

Pangolins are mammals, occasionally called scaly anteaters, that spend much of their time digging caves in the earth to feed off small insects. To protect itself from predators, the pangolin has an armor of horny scales that overlap like shingles on a roof. When in danger, the animal tucks its head into its stomach, and the scales overlap, allowing the pangolin to wrap itself into a ball. Pangolin scales are also incredibly durable due to their anti-adhesive and anti-friction qualities. The unique qualities of pangolin scales can be attributed to the longitudinal riblet microstructures on the scales, which allow the pangolin to travel through rock and dirt smoothly.