Biocompatible, Robust Free‐Standing Paper Composed of a TWEEN/Graphene Composite

A stable, biocompatible, free-standing “paperlike” material composed of polyoxyethylene sorbitan laurate (TWEEN) and reduced graphene oxide platelets is presented. The TWEEN paper is highly stable in water (no leakage of TWEEN) and sufficiently robust to be handled by hand without breaking (see image). Furthermore, the material is noncytotoxic to three mammalian cell lines and inhibits nonspecific binding of Gram-positive bacteria. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.