biostudies-literatureChung KYHong Kong Polytechnic Universitye2415702https://www.ebi.ac.uk/biostudies/studies/S-EPMC12676090biostudies-literatureUnknown37(48)Soft electronics textiles have garnered global attention for their wearability and promising applications in healthcare, energy devices, and artificial intelligence. Recently, direct-ink-writing (DIW) technology has shown a growing trend because of its controllability, ease of fabrication, and efficiency. However, the design novelty of printable ink for soft electronic textiles is severely hampered by the intrinsic challenges of integrating printability, conductivity, stretchability, biocompatibility, and durability. Herein, a reusable DIW bio-carbon gel ink is proposed for printing soft electronic textiles where cottonseed peptone-functionalized multi-wall carbon nanotubes (CPCNTs) exhibit high dispersibility and reactive surface groups, enabling stable cross-linking with phytic acid (PA)Advanced materials (Deerfield Beach, Fla.)Cottonseed-Derived Reusable Bio-Carbon Gel Ink for DIW Printing Soft Electronic Textiles.PMC126760901‐CD431-W34U1-WZ1Y1-CD431‐W34U1‐WZ1YLiu XLi XHe ZXu BLu JTan DYang QChung KYfalseCottonseed-Derived Reusable Bio-Carbon Gel Ink for DIW Printing Soft Electronic Textiles.Soft electronics textiles have garnered global attention for their wearability and promising applications in healthcare, energy devices, and artificial intelligence. Recently, direct-ink-writing (DIW) technology has shown a growing trend because of its controllability, ease of fabrication, and efficiency. However, the design novelty of printable ink for soft electronic textiles is severely hampered by the intrinsic challenges of integrating printability, conductivity, stretchability, biocompatibility, and durability. Herein, a reusable DIW bio-carbon gel ink is proposed for printing soft electronic textiles where cottonseed peptone-functionalized multi-wall carbon nanotubes (CPCNTs) exhibit high dispersibility and reactive surface groups, enabling stable cross-linking with phytic acid (PA)2025-01-01T00:00:00Z2025 Dec2026-06-05T21:57:48.112Z2026-05-22T03:15:55.231ZS-EPMC126760904065890510.1002/adma.202415702