Microbial nanocellulose biotextiles for a circular materials economy

Area of Science:

• Materials Science
• Biotechnology
• Textile Engineering

Background:

• Developing sustainable materials for a circular economy is crucial.
• Conventional textile and leather production have significant environmental and health impacts.
• Microbial nanocellulose offers a renewable and tunable platform for novel materials.

Purpose of the Study:

• To engineer sustainable biotextiles using microbial nanocellulose (MC) and green chemistry.
• To enhance the properties of MC-based materials for practical applications.
• To assess the environmental impact of the developed biotextiles.

Main Methods:

• Harnessing microbial biofabrication of nanocellulose.
• Applying bio-phosphorylation with a lecithin-phosphocholine emulsion to MC.
• Utilizing natural dyes for color modulation.
• Conducting life cycle impact assessment.

Main Results:

• Lecithin treatment enhanced MC's mechanical properties (tensile strength, ductility) and flame retardance.
• The bio-phosphorylated MC formed a compostable bioleather with superior performance.
• Combustion analysis showed a shift from levoglucosan to insulating char formation.
• Life cycle assessment indicated a substantially lower carbon and carcinogenic footprint compared to conventional textiles and leather.

Conclusions:

• Microbial biofabrication combined with green chemistry offers a viable route to sustainable biotextiles.
• Lecithin-modified MC bioleather presents a high-performance, eco-friendly alternative to conventional materials.
• This approach supports a circular economy by reducing toxicity and climate impact in the textile industry.