Archive · 4 Jan 2026
Robots with Pain-Sensing E-Skin Mimic Human Reflexes
Scientists in Hong Kong have made a special skin for robots that can feel touch and pain, just like humans.
This skin is made up of four layers that work together to sense how hard something is touching the robot.
If the touch is gentle, the robot can use that information to handle objects or interact with people.
But if the touch is too hard and could cause damage, the skin sends a quick signal to the robot's motors, making it move away fast, just like how a person would pull their hand away from something hot.
The skin can also tell if it's damaged and can be easily fixed by replacing the broken parts.
This new technology helps robots stay safe and work better with people.
Researchers at City University of Hong Kong developed an electronic skin for robots that mimics human touch and pain sensations.
The neuromorphic robotic skin translates physical contact into electrical signals, allowing robots to distinguish between gentle touches and harmful impacts.
When the pressure exceeds a predefined pain threshold, the skin sends a high-voltage pulse directly to the robot’s motors, triggering an immediate withdrawal response.
The skin is designed with magnetic modules that can be quickly replaced if damaged, making repairs straightforward.
The system also monitors its own condition, identifying the exact location of damage if the skin is torn or cut.
- Who
- Researchers at City University of Hong Kong, led by engineer Yuyu Gao
- What
- Developed an electronic skin for robots that can sense touch and pain, triggering protective reflexes
- When
- The research was published in the journal PNAS
- Where
- City University of Hong Kong
- Why
- To create safer and more responsive humanoid robots
- Research Team
- City University of Hong Kong, led by engineer Yuyu Gao
- Technology
- Neuromorphic robotic skin
- Publication
- Journal PNAS
- Function
- Senses touch, recognizes damaging force, triggers protective movements
- Reaction Time
- Immediate withdrawal response to harmful impacts
- Repairability
- Magnetic modules for quick replacement of damaged sections
