Butterfly wing Yun subtle colorful anti-counterfeiting money
A glass butterfly flutters its wings, and the bright green pattern flashes with fluorescence. People may not think that this beautiful landscape in the eyes of tourists is a long-standing problem that has not been overcome in the research field.
Today, British researchers use nanotechnology to construct the same structure as the butterfly wing surface particles, and intend to apply this technology to the manufacture of banknotes and bank cards, and to increase the security factor with colorful colors.
Successful simulation
The beautiful butterfly wings and colorful beetle shells are not merely pigments, but more closely related to the visual effects of light reflected in the subtle structures. This kind of natural structure is difficult to mimic artificially, and many physics and biological researchers feel great regret.
Researchers from University of Cambridge, Matthias Cole, Ulrich Steiner, Jeremy Baumberg and others used the glass butterfly butterfly from Indonesia as the research object and successfully used nanotechnology to simulate the butterfly wing surface. Colored particle structure.
The surface structure of the butterfly wing is complex and similar to the curved inner wall of the egg package carton. These particles consist of a multilayer film that creates a colorful visual effect under the influence of air.
The British "The Times" quoted Cole as saying on May 31st: "We have unlocked one of nature's secrets and combined this discovery with advanced nanotechnology to simulate this complex optical design."
Bright anti-counterfeiting
The study was jointly funded by the British Research Council for Engineering and Physics and the Cambridge Newton Foundation. The research report was published in the UK's "Nature-Nanotechnology" magazine published on May 30th.
There have been few breakthroughs in this kind of research. The main challenge is how to accurately arrange all kinds of tiny substances. Talking about this breakthrough, Cole said: “Although nature has done better than us in the area of ​​'self-assembly', we have our own advantages, namely the ability to make more extensive use of tailor-made artificial materials and enable optical structures to be realized. optimize."
The latest breakthrough will not only help researchers deepen the understanding of the physics of butterfly color, but also have great value in the field of security printing and other applications.
According to Cole, "These artificial structures can print encrypted information on the surface of banknotes or other valuable items to prevent counterfeiting. We still need to improve this technology, and we believe that we can see a 10-yuan denomination of pounds sterling and even a passport-like surface in the future." The wings of a butterfly are shimmering."
Distinguish between enemy and myself
The researchers found that the glass butterfly appeared in different colors in the eyes of its peers and natural enemies. It was like encrypting information and could be used to protect itself.
According to Kerr, when people watch with the naked eye, the pattern of butterfly wings appears green; if viewed with a specific optical device, these patterns appear bright blue.
In the eyes of similar butterflies, the butterfly-winged pattern is eye-catching bright blue; in the eyes of natural enemies, these patterns are only ordinary green, and they are unremarkable in the lush tropical environment.
“This tropical butterfly wing has a shiny green pattern and is a striking example of nature's meticulous design,†said Cole.
A glass butterfly flutters its wings, and the bright green pattern flashes with fluorescence. People may not think that this beautiful landscape in the eyes of tourists is a long-standing problem that has not been overcome in the research field.
Today, British researchers use nanotechnology to construct the same structure as the butterfly wing surface particles, and intend to apply this technology to the manufacture of banknotes and bank cards, and to increase the security factor with colorful colors.
Successful simulation
The beautiful butterfly wings and colorful beetle shells are not merely pigments, but more closely related to the visual effects of light reflected in the subtle structures. This kind of natural structure is difficult to mimic artificially, and many physics and biological researchers feel great regret.
Researchers from University of Cambridge, Matthias Cole, Ulrich Steiner, Jeremy Baumberg and others used the glass butterfly butterfly from Indonesia as the research object and successfully used nanotechnology to simulate the butterfly wing surface. Colored particle structure.
The surface structure of the butterfly wing is complex and similar to the curved inner wall of the egg package carton. These particles consist of a multilayer film that creates a colorful visual effect under the influence of air.
The British "The Times" quoted Cole as saying on May 31st: "We have unlocked one of nature's secrets and combined this discovery with advanced nanotechnology to simulate this complex optical design."
Bright anti-counterfeiting
The study was jointly funded by the British Research Council for Engineering and Physics and the Cambridge Newton Foundation. The research report was published in the UK's "Nature-Nanotechnology" magazine published on May 30th.
There have been few breakthroughs in this kind of research. The main challenge is how to accurately arrange all kinds of tiny substances. Talking about this breakthrough, Cole said: “Although nature has done better than us in the area of ​​'self-assembly', we have our own advantages, namely the ability to make more extensive use of tailor-made artificial materials and enable optical structures to be realized. optimize."
The latest breakthrough will not only help researchers deepen the understanding of the physics of butterfly color, but also have great value in the field of security printing and other applications.
According to Cole, "These artificial structures can print encrypted information on the surface of banknotes or other valuable items to prevent counterfeiting. We still need to improve this technology, and we believe that we can see a 10-yuan denomination of pounds sterling and even a passport-like surface in the future." The wings of a butterfly are shimmering."
Distinguish between enemy and myself
The researchers found that the glass butterfly appeared in different colors in the eyes of its peers and natural enemies. It was like encrypting information and could be used to protect itself.
According to Kerr, when people watch with the naked eye, the pattern of butterfly wings appears green; if viewed with a specific optical device, these patterns appear bright blue.
In the eyes of similar butterflies, the butterfly-winged pattern is eye-catching bright blue; in the eyes of natural enemies, these patterns are only ordinary green, and they are unremarkable in the lush tropical environment.
“This tropical butterfly wing has a shiny green pattern and is a striking example of nature's meticulous design,†said Cole.
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