In a study recently published in Materials Today Bio, researchers from Osaka University have used silk nanofibers obtained by mechanical disintegration to enhance the printing process without damaging the cells or cell assemblies.

reference:

https://www.3dmednet.com/silk-fibers-provide-integrity-and-prevent-cell-damage-in-3d-printed-biological-constructs/

Sakai S, Yoshii A, Sakurai S, Horii K, Nagasuna O. Silk fibroin nanofibers: a promising ink additive for extrusion three-dimensional bioprinting. Materials Today Bio. 8, 100078 (2020);