A new study explains how scientists have been able to successfully transform commonplace materials like paper and plastic into high-tech devices.
SciTech Daily cited a study as saying that while the concept of using liquid metal to change common materials into smart electrical gadgets may have been thought to be unattainable a few decades ago, it is now an expected reality.
Chinese scientists have devised a groundbreaking new method that has the potential to revolutionise the electronics sector.
Ordinary materials such as paper and plastic may now be turned into electronic “smart gadgets” using liquid metal, according to a study published in Cell Reports Physical Science magazine.
The study group at Tsinghua University, lead by Bo Yuan, has developed a simple yet groundbreaking technique for covering surfaces with liquid metal that normally resist bonding with the substance.
This research highlights the scalability of the approach, which could pave the way for soft robotics, flexible technologies, and wearable testing platforms.
When asked about the relevance of their finding, Yuan said, “Before, we thought that it was impossible for liquid metal to adhere to non-wetting surfaces so easily, but here it can adhere to various surfaces only by adjusting the pressure, which is very interesting.”
In the past, the high surface tension of liquid metal made it impossible to bond to and integrate with conventional materials
To get over these limitations, Yuan and his team looked for a way to print liquid metal directly onto substrates without compromising its properties.
Eventually, they utilised eGaln and BilnSn, two types of liquid metal, to cover a variety of silicone and silicone polymer stamps, then rubbed them across papers with varying amounts of pressure.
Metal-coated paper preserves its original properties even after folding, as demonstrated by researchers who achieved stable adhesion of a liquid metal coating to paper by exerting a little force and folding the paper into a paper crane.
Yuan pointed out that despite these advances, it remains challenging to ensure the endurance of the liquid metal coating after application. Nonetheless, the team is committed to developing a replacement for adhering packaging material to the paper’s surface.
As Yuan put it, “The liquid metal coating without packing here may be wiped off by the thing it touches as it is applied, just like wet ink on paper can be wiped off by hand. The coating’s functional capabilities won’t change much, but whatever it comes into contact with could get dirty.
Researchers hope to build novel smart gadgets and increase the method’s versatility for use on a variety of surfaces.
To read our article about “iPhone maker Foxconn will shift its focus to automobiles” click here.
