Week 3 - Materials in biodesign

This episode explores the concept of biofabrication, which was initially rooted in the medical field and is now expanding within biodesign to produce innovative materials through biological processes. Biofabricated materials are created by cultivating organisms like bacteria, algae, and mycelium, harnessing their natural growth behaviours to generate sustainable alternatives. By using controlled biological systems, biofabrication offers less impactful processes and materials, supporting the shift toward sustainability. The episode provides an overview of biofabrication's potential in design and its role in developing eco-friendly materials and products

This episode delves into biofabricated materials developed from fungal mycelium, a focal point in Biodesign due to its unique properties and design potential. Mycelium-based materials are cultivated through Biotinkering—experimental practices that allow designers to explore these materials' capabilities. The episode provides an overview of current research, highlighting case studies from biology, design, and industry, showcasing how mycelium is used to create sustainable, versatile solutions in various applications.

This episode features an interview with Maurizio Montalti. Montalti's approach, inspired by symbiotic relationships and a fascination with the micro-scale, seeks to challenge conventional paradigms and promote critical thinking through tangible, alternative materials. As co-founder of MOGU, a company advancing mycelium-based materials, Montalti discusses his journey in scaling sustainable materials for industrial use and reflects on his contributions to education and design culture.

This episode explores Bioreceptive Materials, a niche within Biodesign that focuses on designing inert materials to support and nurture life. Unlike typical bio-based materials, bioreceptive materials are crafted to encourage the growth of organisms like lichens, mosses, and algae on their surfaces. Designers create environments where life can flourish by carefully tuning features such as porosity, pH, colour, and texture.

Bioreceptive materials have applications in architecture, urban resilience, and biomonitoring, as demonstrated by case studies that use these materials to foster biodiversity, rehabilitate polluted areas, and increase biophilia in urban spaces. This transdisciplinary approach highlights the role of design in supporting ecological regeneration.

This episode examines bacterial cellulose (BC) as a sustainable alternative material in design, particularly in the shift toward a circular bioeconomy. Produced by bacteria such as Acetobacter xylinum, BC can be biodegradable, compostable, and versatile, making it ideal for applications in fashion, packaging, and beyond. Examples include using BC as a leather alternative and sustainable packaging. Projects showcase BC's unique qualities, flexibility, resilience, and leather-like texture, highlighting its potential for real-world applications. This episode underscores the growing interest in bacterial-based materials for sustainable, regenerative design solutions.

This episode explores biotinkering with bacterial cellulose (BC), focusing on its potential for sustainable design applications. At Politecnico di Milano, researchers are experimenting with BC to create diverse material states, such as KBC monolayer, KBC tartare, and KBC agar, each with unique properties for design. By leveraging BC's self-adhesive and moldable qualities, designers can create 3D shapes, textures, and intricate graphic effects.