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Post-it note adhesive, SEM

Post-it note adhesive, SEM


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Post-it note adhesive, SEM

Post-it note. Coloured scanning electron micrograph (SEM) of spheres of adhesive (yellow) on the back of a Post-it note. The spheres contain an adhesive. They rupture under pressure, releasing a thin film of adhesive over the surface they are in contact with. Only a few spheres are ruptured at one time, meaning the Post-it note can be reused many times until all the spheres have been exhausted. Magnification unknown

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6399479

© VOLKER STEGER/SCIENCE PHOTO LIBRARY

Adhesive Bonding Common Item Familiar Object Globule Globules Glue Items Objects Reusable Sticking Sticky Sticker


EDITORS COMMENTS
This print from Science Photo Library showcases the intricate world of Post-it note adhesive under a scanning electron microscope (SEM). The image reveals an array of vibrant yellow spheres, each containing a powerful adhesive. These microspheres are designed to rupture when pressure is applied, releasing a thin film of adhesive onto the surface they come into contact with. What makes this discovery truly remarkable is that only a few spheres rupture at one time, allowing the Post-it note to be reused multiple times until all the spheres have been exhausted. This ingenious design ensures that these familiar sticky notes can be used over and over again without losing their effectiveness. The magnification level used for capturing this SEM image remains unknown, but it highlights the microscopic beauty hidden within our everyday objects. Through this photograph, we gain insight into the chemistry and bonding properties behind these tiny globules of adhesive. While it's important not to mention any commercial use or specific companies associated with Post-it notes in this context, let us appreciate how science unravels even the smallest details of common items like stickers. This stunning print serves as a reminder that there is so much more than meets the eye in our seemingly ordinary surroundings.

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