Black Bioinks from Superstructured Carbonized Lignin Particles

Abstract: A renewable source of carbon black is introduced by the processing of lignin from agro‐forestry residues. Lignin side streams are converted into spherical particles by direct aerosolization followed by carbonization. The obtained submicron black carbon is combined with cellulose nanofibers, which act as a binder and rheology modifier, resulting in a new type of colloidal bioink. The bioinks are tested in handwriting and direct ink writing. After consolidation, the black bioinks display total light reflectance (%R) at least three times lower than commercial black inks (reduction from 12 to 4%R). A loading of up to 20% of nanofibers positively affects the cohesion of the dried bioink (1 to 16 MPa), with no significant reduction in light reflectance. This is a result of the superstructuring of the ink components, which disrupts particle packing, intensifies colloidal interactions, introduces light absorption, and non‐reflective multiple scattering.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Black Bioinks from Superstructured Carbonized Lignin Particles ; day:05 ; month:07 ; year:2023 ; extent:12 ; Advanced functional materials ; (05.07.2023) (gesamt 12)

Contributors, Places and Time

• Creator: Mattos, Bruno D. ; Jäntti, Noora ; Khakalo, Sergei ; Zhu, Ya ; Miettinen, Arttu ; Parkkonen, Joni ; Khakalo, Alexey ; Rojas, Orlando J. ; Ago, Mariko

Further information

• DOI: 10.1002/adfm.202304867
• URN: urn:nbn:de:101:1-2023070615112132926121
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:46 AM CEST