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Scientists Discover Way to Send Information into Black Holes Without Using Energy

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Scientists Create Next-Gen Artificial Skin That Lets Robots Feel Touch Like Humans

Imagine a robot that can feel the pressure of a human touch, a wearable device that can monitor the body like a second layer of skin, or artificial limbs that can sense their surroundings just like humans do. This future is becoming closer as researchers develop advanced electronic skin technology that can bring human-like sensing abilities to machines.

A team of Korean researchers has achieved a major breakthrough in flexible electronic skin technology by creating a new fabrication method that can produce large-area sensors directly where they are needed. The innovation could accelerate the commercialization of electronic skin for applications ranging from intelligent robots and wearable devices to healthcare systems and human-machine interaction technologies.

The research was conducted by the Electronics and Telecommunications Research Institute (ETRI) in collaboration with Professor Ahn Jun Seong’s research team from the Department of Control and Instrumentation Engineering at Korea University’s Sejong Campus. Their findings were published in the scientific journal npj Flexible Electronics.

What Is Electronic Skin?

Electronic skin, often called e-skin, is a thin and flexible sensor system designed to imitate the sensing abilities of human skin. Just like our skin detects pressure, touch, and movement, electronic skin allows machines to recognize physical contact and respond accordingly.

This technology is considered a key component for the next generation of intelligent robots. For example, humanoid robots with electronic skin could safely interact with humans by sensing touch, while wearable devices could provide more accurate health monitoring.

However, despite its huge potential, producing electronic skin has remained a challenging process.

The Challenge of Traditional Manufacturing

Traditional flexible electronic sensors are usually manufactured using complex semiconductor fabrication techniques. These methods involve processes such as photomask patterning, vacuum deposition, and chemical etching.

Because of these requirements, production often depends on expensive clean room facilities — highly controlled environments used for semiconductor manufacturing. These facilities require significant investment and make the fabrication process complicated and costly.

Another problem is that conventional manufacturing involves multiple steps. During production, flexible materials often need to be repeatedly moved between different processing stages. This increases the risk of defects, makes quality control harder, and raises manufacturing costs.

The difficulty becomes even greater when researchers try to create electronic skin over large areas or curved surfaces.

For example, humanoid robots have complex shapes with curved body structures. Applying large-scale tactile sensors onto these surfaces requires high flexibility, reliability, and precise manufacturing. Existing methods struggle to achieve all of these requirements at the same time.

A New Way to Build Electronic Skin

To overcome these limitations, the Korean research team developed an innovative “in-situ” fabrication technology. Unlike traditional methods, this approach allows electronic skin sensors to be created directly at the desired location without needing separate manufacturing steps.

The new technology uses only a UV laser and a 3D printer, removing the need for expensive photomask processes and reducing dependence on semiconductor production facilities.

This means sensors can potentially be fabricated directly on different objects, including complex curved surfaces, without requiring them to be transported to specialized factories.

The researchers designed a maskless process that simplifies manufacturing while improving flexibility and scalability.

Large-Area Sensors Created Faster and More Efficiently

Using this new method, the team successfully created a large-area capacitive flexible tactile sensor array based on a microporous dielectric material.

The sensor showed high reproducibility, meaning the researchers could repeatedly produce similar high-quality results. The process also significantly reduced the number of manufacturing steps compared with conventional techniques.

This improvement could make electronic skin production faster, cheaper, and more practical for real-world applications.

Instead of relying on expensive clean rooms and complicated equipment, manufacturers may eventually be able to create customized electronic skin systems more easily and efficiently.

Bringing Robots Closer to Human Abilities

One of the most exciting applications of this technology is in intelligent robotics.

For robots to work safely alongside humans, they need the ability to sense their environment. A robot equipped with electronic skin could detect when it touches an object, understand different levels of pressure, and respond more naturally.

This could improve human-robot collaboration in industries, healthcare, and everyday environments.

The technology could also benefit human-machine interfaces, where machines directly communicate with users through touch-based interaction.

Future Applications in Wearables and Healthcare

Beyond robotics, this flexible electronic skin technology could have major applications in wearable devices.

Future wearable sensors could monitor physical conditions, track movements, and provide real-time health information while remaining comfortable on the human body.

Because the new fabrication method can adapt to different shapes and surfaces, it could support the development of advanced medical devices, smart clothing, and next-generation Internet of Things (IoT) systems.

The ability to quickly produce customized sensors could also speed up research and development for new technologies.

From Laboratory Research to Real-World Technology

A significant achievement of the ETRI research team is that they demonstrated the technology beyond just creating individual sensors. They successfully applied the system in practical robotic and human-machine interaction environments.

This shows that the technology is not only a laboratory concept but has potential for real-world deployment.

The ability to manufacture electronic skin through a continuous in-situ process removes many limitations of existing methods. Sensors can be created without transfer steps and can be applied directly to objects with unusual shapes and structures.

This provides engineers and designers with greater freedom when developing future intelligent systems.

A Step Toward the Future of Human-Machine Interaction

ETRI Principal Researcher Hye Jin Kim explained that this in-situ electronic skin technology could greatly reduce the barriers involved in creating large-area flexible sensors. The breakthrough may help advance human-robot interaction technologies and make intelligent robotic systems more practical.

As robots become more advanced and wearable technology becomes more integrated into daily life, electronic skin could become one of the most important technologies connecting humans and machines.

This Korean innovation represents a major step toward a future where robots can feel, devices can interact naturally with our bodies, and technology becomes more similar to human senses.

Reference: Lim, H., Choi, J., Han, C. et al. Scalable in-situ fabrication of multimodal electronic skin for intelligent robotics and interactive systems. npj Flex Electron 10, 34 (2026). https://doi.org/10.1038/s41528-026-00538-4

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