Researchers have created a biocompatible, biodegradable and edible fiber, which can find a lot of applications in medicine.
As the main material for optical fiber, the team of scientists from the University of Campinas used the usual agar-agar produced from algae. Created by them wire with a diameter of 2.5 mm has six cylindrical openings of 0.5 mm along the inner axis. They are located around a solid core and interfere with the scattering of light due to the difference between the refractive indices of the gel and air.
The waveguide parameters can be configured by changing the composition of the natural gelatin, the shape and size of the rods for the holes when pouring.
Tests showed that the gel undergoes structural changes under the action of temperature, humidity and pH. This allows you to use it for optical sensing, creating biocompatible optical sensors, disposable Petri bowls, various devices for operations, research and localized drug delivery.
Scientists experiment with other materials, for example, recently Finns manufactured
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