CHAMPAIGN, Ill. -- Researchers have found a way to use polymer printing to stretch and flatten twisted molecules so that they conduct electricity better.
The conjunction allows electricity to travel very quickly through a polymer, making it highly desirable for use in electrical and optical applications.
This mode of transporting charges works so well that conjugated polymers are now poised to compete with silicon materials, the researchers said.
However, these polymers tend to contort into twisted spirals when they join, severely impeding charge transport.
"Even a slight twist of the backbone can substantially hinder the ability of the electrons to delocalize and flow."
It is possible to flatten conjugated polymers by applying an enormous amount of pressure or by manipulating their molecular structure, but both techniques are very labor-intensive, Diao said.
BUFFALO, N.Y. -- A thin film that reflects light in intriguing ways could be used to make road signs that shine brightly and change color at night, according to a study that will be published on Aug. 9 in Science Advances.
The technology could help call attention to important traffic information when it's dark, with potential benefits for both drivers and pedestrians, researchers say.
The film consists of polymer microspheres laid down on the sticky side of a transparent tape.
The material's physical structure leads to an interesting phenomenon: When white light shines on the film at night, some observers will see a single, stable color reflected back, while others will see changing colors.
It all depends on the angle of observation and whether the light source is moving.
The research was led by Limin Wu, PhD, at Fudan University in China, whose group developed the material.
First social media site goes back to 1970s, back when the University of Illinois has developed the PLATO System, which had such features as online forums, bulletin boards, instant messaging, and many other features.
According to App Annie Report Social Media Network 2019 Statistics, the social media statistics 2019 show the following leaders in various countries:
When creating social media, it is necessary to understand that having a mobile application is a prerequisite for the successful project.
Social networks app development can be provided from scratch or as an add-in to the existing web version.
Check out the infographic to find out how much does social media App development cost (basic functionality and one platform - Android or iOS):
How to Create a Social Media App
When it comes to deciding a wedding photographer to capture your special day, you want to choose someone who's appropriate for you.
