Solena Materials, a London-based biomaterials startup spun out of Imperial College, has raised $6.7 million in seed funding to develop and scale next-generation biodegradable protein fibres designed for high-performance textiles. The round was backed by high-profile investors including Sir David Harding, SynBioVen, and Insempra.
Using cutting-edge artificial intelligence and bioengineering, Solena is pioneering protein-based fibres that combine technical durability with environmental responsibility. These novel fibres are not only tough and soft to the touch, but also biodegradable—positioning them as a sustainable alternative to conventional petroleum-based synthetics such as polyester and nylon, which contribute significantly to microplastic pollution and water contamination.
Founded in 2022 by Dr. James MacDonald, Professor Paul Freemont, and Professor Milo Shaffer, Solena’s proprietary deep learning platforms enable the design of bespoke protein structures at the molecular level. This allows for precision-tuning of fibre properties including tensile strength, elasticity, and functional performance, offering tailor-made textile solutions for apparel, technical wear, and other demanding applications.
“This investment is a strong vote of confidence in our mission to deliver the next generation of textile fibres,” said Dr. MacDonald, Solena’s CEO. “It will allow us to expand production, reduce costs, and begin partnering with fashion brands to bring Solena fibres to market within the next three years.”
The funding will support Solena’s move into larger R&D and production facilities, strengthen its intellectual property portfolio, and kick-start commercial collaborations across the fashion and textile sectors.
Commenting on the investment, Sir David Harding said: “Solena’s technology offers an answer to the question of how fashion can ever be compatible with sustainability. Most clothing today is made from fossil fuels. Hopefully, the materials of the future will be grown in vats.”
Jens Klein, CEO of Insempra and Chairman of Solena Materials’ board, added: “This investment reflects our commitment to driving a regenerative revolution. Solena’s biodegradable, non-oil-derived fibres hold the potential to transform the textile industry.”
With the apparel sector under increasing pressure to curb environmental impact, Solena Materials’ innovation offers a promising path forward—where performance and sustainability are no longer at odds.
