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Chromogenic fusion proteins as alternative textiles dyes
Tyson Watkins1,2, Kaylee Moffitt1, Robert E Speight1,2,3
1School of Biology and Environmental Sciences, Faculty of Science, Queensland University of Technology (QUT), Brisbane, Queensland, Australia.
Biotechnology and Bioengineering
|June 11, 2024
Summary
Sustainable textile dyeing uses novel protein-based colorants. Chromoprotein-carbohydrate-binding module (CBM) fusions show potential for eco-friendly fabric coloring, offering new creative avenues.
Area of Science:
- Biotechnology
- Materials Science
- Sustainable Chemistry
Background:
- Fast fashion generates significant textile waste, driving the need for sustainable alternatives.
- Protein-based colorants offer an eco-friendly substitute for chemical dyes, reducing raw material demand.
Purpose of the Study:
- To investigate chromogenic fusion proteins (chromoprotein-CBM) as sustainable textile dyes for cellulose-based fabrics.
- To evaluate the color properties and binding capabilities of these fusion proteins.
Main Methods:
- Examined color properties of AeBlue, SpisPink, and Ultramarine chromoproteins alone and fused to CBMs (Clos and Ch2).
- Assessed color stability across varying pH and temperature conditions.
- Conducted binding assays to confirm CBM attachment to cellulosic materials.
Main Results:
- Chromoproteins maintained color between pH 4-9 and 4-45°C.
- Fusion with CBMs did not alter chromoprotein color or CBM binding affinity to cellulose.
- Ultramarine-CBM fusions colored cotton purple, with color fading upon drying; polyethylene glycol enhanced color stability.
Conclusions:
- Chromoprotein-CBM fusions show promise for sustainable textile dyeing.
- Potential applications include color maintenance, reversible textile coloring, and innovative design in the fashion industry.
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