In an exciting breakthrough, researchers at Empa have developed a 3D-printed, biodegradable fungal battery that generates electricity in a completely unique way—by “feeding” on nutrients rather than being charged. This innovative technology has the potential to power sensors for agricultural applications or research in remote areas. Once its job is done, the battery digests itself from the inside, making it completely non-toxic and environmentally friendly. The study, which details this novel development, was published in ACS Sustainable Chemistry & Engineering.

Fungi, a diverse group of organisms more closely related to animals than plants, are already known for their wide range of uses—from providing food and medicine to producing pathogens. Now, Empa researchers have unlocked a new capability: fungi that generate electricity. This achievement is the result of a three-year research project led by scientists at Empa’s Cellulose and Wood Materials Laboratory.

In a groundbreaking development, researchers have harnessed the power of low-cost FDM 3D printing technology to create scaffolds that closely mimic the mineral properties of natural bone tissue. By combining poly(lactic-co-glycolic acid) (PLGA) with hydroxyapatite (HA), they’ve created a base structure that offers a realistic environment for bone research. This innovative method significantly lowers the barrier to entry for labs, as it eliminates the need for expensive bioprinters traditionally required for such work.

While high-end bioprinters can cost hundreds of thousands of dollars, this new technique shows that even inexpensive desktop 3D printers can be used to produce functional scaffolds that are suitable for complex biomedical research. This democratization of technology could allow a wider range of labs, especially those with limited funding, to engage in advanced bone tissue research.

At the 2024 Designblok exhibition, four forward-thinking designers—winners of the 2023 Designblok Diploma Selection—collaborated on a groundbreaking showcase that explored the practical applications of 3D-printed wood materials in furniture design. Their innovative pieces earned them the prestigious 2024 Designblok Award for Best Designer Presentation. Partnering with Additive Tectonics, the designers demonstrated how 3D printing can be utilized to create functional, sustainable, and aesthetically pleasing furniture while improving production efficiency.

Friedrich Gerlach’s Lumo Sofa is a standout example of how 3D printing can be leveraged for both sustainability and design innovation. The sofa features a stackable structure that maximizes the printer bed space, reducing material waste and improving production efficiency. Its seat is made from 100% wool fabric and filling, making it fully biodegradable, while the simple yet elegant design ensures practicality and comfort. This modular design emphasizes the potential of 3D printing to produce furniture that not only meets modern aesthetic standards but also aligns with sustainable principles.