In Sweden, researchers have developed an eco-friendly 3D printing material made from yeast
Researchers at Chalmers University of Technology in Sweden have developed an innovative 3D-printing material based on common yeast, which could serve as an eco-friendly alternative to traditional building materials.
The new approach aims to reduce the industry’s reliance on non-renewable resources and lower the carbon footprint of construction.
Unlike its use in the food industry, yeast does not participate in fermentation in this new project. It undergoes heat treatment, after which it becomes an effective binding agent for creating building products.
The research leader, Professor Malgorzata Zboińska, explained that yeast was the optimal choice due to its natural properties.
“Yeast is an ideal candidate: it grows exponentially, is undemanding in terms of conditions, and allows for a uniform, predictable material structure,” the scientist noted.
In addition to yeast, the innovative material contains several natural components:
- wood cellulose fibers, which provide tensile strength;
- alginate from brown algae, which helps maintain shape during printing;
- vegetable glycerin, which adds flexibility and plasticity to the material.
As a result, the scientists obtained an elastic hydrogel that can be easily extruded through a 3D printer nozzle.
One of the main advantages of this development is that after printing, the material dries naturally at room temperature. No energy-intensive ovens, firing, or additional chemical processes are required for it to harden.
This approach significantly reduces energy consumption and makes production more environmentally friendly.
Study co-author Yagmur Bektas emphasized that 3D printing technology makes it possible to create complex architectural forms with virtually no material waste.
In addition, the new material is easily adaptable to various design tasks. By adding natural pigments or using different strains of yeast, researchers can produce a wide range of shades—from light yellow to rich brown.
The technology also allows for adjusting the transparency, texture, and appearance of the surface, opening up possibilities for creating decorative panels, partitions, and other architectural elements.
The development by Swedish scientists demonstrates the potential of biomaterials in the construction industry and could be an important step toward creating more sustainable architecture. The use of yeast, wood, and algae allows for the combination of renewable resources with modern 3D printing technologies, reducing the environmental impact.
This is reported by Newatlas.
Earlier, the Chinese corporation Aero Engine Corporation of China (AECC) reported successful flight tests of an ultra-light portable turbojet engine, manufactured primarily using 3D printing technology.
Contec Australia has completed construction of the country’s first two-story house printed on a 3D printer. This unique project was carried out in Perth, and it is the only two-story building in Australia created entirely using 3D printing.
