Robots with Human Skin – Japan’s new development
KAKALI DAS

Robots are a product of both software and hardware, representing mechanical marvels. While they are not human, scientists have long been striving to create robots that people can relate to.
From training them to express emotions to constructing them with human-like bodies, no effort has been spared, and it appears that scientists have finally achieved some success.
They are approaching the goal of making robots almost human-like. These metal companions are undergoing a makeover. Robots could soon smile, frown, and perhaps even roll their eyes, acquiring skills to become more similar to humans.

No more boring screens or flashy LED lights; now, we’re talking about real, living skin. What’s the scoop?
The brilliant researchers in Japan have managed to apply living skin onto robot faces. They say that they have developed a novel method to integrate living skin tissue with a mechanical robotic surface. This isn’t just any skin—it’s cultivated in a lab from living cells, soft, stretchy, and remarkably human-like. This skin can move with the robot seamlessly, without tearing apart.
The research was published in the journal Cell Reports Physical Science this month.
Professor Shoji Takeuchi, from the Institute of Industrial Science at the University of Tokyo, led the team. Previously, he developed a “living” robot skin using collagen, a fibrous protein found in human skin, and human dermal fibroblasts, the primary cell type in connective tissue. This innovation allowed the robot’s finger to bend without fracturing.
The team drew inspiration from the natural structure of human skin ligaments to develop a new technique. They created “anchors” by applying collagen gel to small, V-shaped holes on the robot’s surface. According to Takeuchi, this innovative method offers a “more seamless and durable attachment.”
Who would have thought robots would need skincare routines? The procedure for applying this skin is equally intriguing: first, they drill tiny holes in the robot’s face, then fill them with collagen gel, and finally apply the skin in layers. Voila! A robot face that appears uncannily real.
Professor Shoji Takeuchi, the mastermind behind this says, “The skin’s flexibility and strong addition keeps it from peeling off. “
Takeuchi is not alone in striving to make robots more human-like.

Ameca, often hailed as the world’s “most advanced humanoid robot,” utilizes artificial intelligence to engage in conversations and respond appropriately to interactions. According to Will Jackson, founder and CEO of Engineered Arts Ltd (the company behind Ameca), one of the factors enhancing her realism compared to other robots is her expressive eyes.
“Eyes are the windows to the soul. We interpret each other’s emotions through eye contact,” Jackson told CNN. He added that due to a “finite amount of motion” available in the robot’s head, eyes offer “the most expressive capability.”
“Eyes are the windows to the soul. We interpret each other’s emotions through eye contact,” Jackson told CNN. He added that due to a “finite amount of motion” available in the robot’s head, eyes offer “the most expressive capability.”
Unlike the 3.5 million industrial robots already operating behind the scenes in sectors like automotive manufacturing and electronics, humanoids such as Ameca, Sophia from Hanson Robotics, and Grace are designed for human-facing roles such as hospitality, healthcare, or education.

However, they currently lack a wide range of motion for their facial expressions, which can create an “uncanny valley” effect — a phenomenon that can make people uncomfortable with objects or beings that strive to resemble humans but don’t quite succeed.
Talk about a robot facelift! In humans, the skin is anchored to the underlying structure by ligaments, akin to flexible ropes made of collagen and elastin. Scientists have attempted to replicate this process for robots.
Additionally, these robot skins have the ability to heal themselves. That’s correct—this artificial skin can recover autonomously. Scientists are focused on emulating the natural flexibility and resilience of human skin, ensuring it won’t easily rip or tear, resulting in a convincingly realistic appearance.
However, achieving this feat was not an easy road. Initially, they attempted to use miniature hooks to secure the skin, but this approach damaged the skin as soon as the robot began moving.

But hold your horses! As exciting as it may sound, we’re not getting these human-like skin robots tomorrow. Scientists still need to figure out how to make them perform realistic expressions without coming off as creepy mannequins.
Takeuchi and his team aim to incorporate additional sensory functions in the next phase of their research, aiming “to enhance the skin’s responsiveness to environmental stimuli,” he explains.
Yet, Takeuchi acknowledges that maintaining the consistency and quality of the living skin could pose significant challenges.

Another aspect of his research involves exploring methods to develop a vascular system for robotic skin. This system, akin to the body’s network of vessels and veins that transport blood and lymphatic fluids, aims to supply necessary nutrients to maintain the skin’s health over time. According to Takeuchi, implementing such a system would enhance the skin’s moisture content, thereby “improving its durability and longevity.”
Also, apparently, this breakthrough could also advance research in skin aging, cosmetics, and plastic surgery. This implies that robots could potentially contribute to anti-aging efforts. We’re on the verge of creating robots that could pass for our next-door neighbours.

It’s a bit unsettling yet undeniably fascinating. Imagine a future where a robot barista not only brews coffee but also offers a reassuring smile. It seems our future robotic overlords are in for a significant glow-up.
To conclude, achieving something like this would “require extensive engineering efforts.” However, if successful, it could grant humanoids the capability to resemble and even feel like humans in the future.

08-07-2024
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