Caja Peters / work











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Bachelor's thesis
4 Months / 100%
(OCT 2023—FEB 2024)

Automated Filamentation of Bacterial Cellulose

Development of a filamentation system to re-imagine the production of textile fibres by fermenting cellulose from bacteria and autonomously harvesting endless strands.





WHY

The textile industry is a major contributor to the planetary boundaries being exceeded each year. 'Bacterial Filamentation' as a regenerative design research project envisions a future in which circular materials are bio-manufactured with a minimal consumption of resources by living organisms, thereby counteracting the overuse of planetary resources.


HOW

In an automated process, a yarn-like filament made from bacterial cellulose is fermented, harvested, washed, dried and wound up. The filament can be used to produce textiles, which have been explored through (basket) weaving and show potential areas of application—reinforcements, upper materials, soles, but also any type of textile is thereby envisioned. Adding natural colourants to the fermentation process creates vibrant colours and expands the possibilities to design and rethink the common dyeing process.


WHAT

Re-imagining the production of textile fibres by fermenting cellulose from bacteria in order to reduce reliance on monocultures, deforestation and oil production. A machine is built to automately filament bacterial cellulose in a micro-scale, and envision the scalability of the biofabrication.


„There is a gap in research regarding approaches of co-designing with bacterial cellulose characteristics in order to directly bio-manufacture bacterial cellulose with textile properties.“
(Morrow et al., 2023)













RESEARCH FOUNDATION


Inspired by the two existing studies on the filamentation of bacterial cellulose shown on the right, I began by getting to know the material and its behaviour by, among other things, testing the growth in relation to the surface area to nutrient volume.

“Although bacterial cellulose designs have so far been focused on sheet forms embodying nonwovens structures, there is little or no investigation into how the concepts of co-design and bio-manufacturing can directly form filaments. This leaves a wealth of material applications unexplored.“
Morrow et al., 2023.


Hokkaido University, Japan 1997
Direct harvesting a BC filament
https://doi.org/10.1016/s01448617(97)00135-5


Royal College of Art, London 2023
BC grown as a filament in a 3D printed spiral
https:// doi.org/10.3390/ma16144893









MAKING













WEAVING & DYEING









AWARDS

JUN 2024
Award / Förderpreis, Rolf-Scheuermann-Stiftung

JUN 2024
Research Excellence Award, Institute for Applied Sciences / Institut für Angewandte Forschung (IAF)









ONGOING

SEP 2024
Kick-Off Bacterial 3D Printer

First Tests—Hand-Printing Filaments