ChromoFlavo: Advancing Sustainable, Bacterial-Derived Structural Colours for Design, Architecture, and Beyond

The demand for sustainable colourants is gaining significant recognition across many industries, the UN, governments, and also among consumers. As awareness grows, the urgent need to develop eco-friendly alternatives to traditional pigments and dyes, often criticized for their energy-intensive processes and environmental impact, becomes apparent. The RAAK-PRO project proposal "ChromoFlavo" addresses this need by exploring the biomanufacturing of Structural Colour (SC) in a novel way using Flavobacteria. SC features microscopically structured particles that interact with light in a similar way to peacock feathers, offering vivid, non-toxic colours while reducing energy use and reliance on renewable resources.

Although Bacterial-Derived Structural Colours (BDSC) show great promise, they are still in early development, particularly regarding scalability and the preservation and formulation of colourants. To tackle these challenges, the RAAK-PRO proposal aims to advance this technology to meet market needs. The project’s initial focus is on architectural coatings and design, areas where aesthetics and sustainability are paramount, and where designers are often eager to adopt new technologies. By demonstrating BDSC's potential in these sectors, the project seeks to underscore its broader applicability in other sectors.

The colourant industry, with its diverse applications, presents challenges to adopting innovative technologies. To overcome these, the project will develop a business roadmap that integrates designer input to strategically position and promote BDSC. This important activity is designed to promote future product development.

This project brings together a consortium of academic institutions, biotech SMEs, industrial designers, and industry partners to enhance the durability and consistency of structural colours produced by bacteria. The goals include establishing cost-effective production methods and developing paints and coatings incorporating SC derivatives. Through innovation in sustainable colourants, the "ChromoFlavo" project aspires to drive a transformative shift in the colour industry, ultimately scaling BDSC technology to meet the growing demand for environmentally friendly solutions.