Goodbye Plastic? Scientists Create a Supermaterial That Outperforms Metals and Glass

News- Scientists at Rice University and the University of Houston have developed a powerful new material by guiding bacteria to grow cellulose in aligned patterns, resulting in sheets with the strength of metals and the flexibility of plastic—without pollution. Using a rotating bioreactor, they transformed the purest biopolymer on Earth into a high-performance alternative to plastic capable of heat conduction, integration with advanced nanomaterials, and applications in packaging, electronics, and even energy storage.

These researchers have developed an innovative and scalable approach to engineer bacterial cellulose and convert it into high-strength, multifunctional materials. Published in Nature Communications, the study introduces a dynamic biosynthesis technique that aligns bacterial cellulose fibers in real time, producing biopolymer sheets with exceptional mechanical properties.

The study’s first author, a Ph.D. student in Materials Science and Nanoengineering at Rice University, said: “Our approach involves developing a rotating bioreactor that directs the movement of cellulose-producing bacteria and aligns their motion during growth. This alignment significantly enhances the mechanical properties of microbial cellulose, creating a material as strong as certain metals and glass, yet flexible, foldable, transparent, and environmentally friendly.”

Bacterial cellulose fibers typically form randomly, limiting their mechanical strength and performance. By controlling fluid dynamics in their novel bioreactor, the researchers achieved in-situ alignment of cellulose nanofibrils, producing sheets with tensile strength up to 436 MPa.

Moreover, incorporating boron nitride nanosheets during synthesis resulted in a hybrid material with even greater strength—around 553 MPa—and improved thermal properties, dissipating heat three times faster than control samples.

July 22, 2025

Ref: www.sciencedaily.com

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