Crystal clear: The liquid crystallinity of graphene oxide platelets in aqueous dispersion is demonstrated. Graphene oxide sheets are arranged around liquid‐crystal disclinations (see picture). The orientation of the liquid crystals can be manipulated by a magnetic field or mechanical deformation.

We discuss the dominant factors influencing the rate of oxidation of Ti3C2TxMXene flakes, and present guidelines for their storage with the aim of maintaining the intrinsic properties of the as-prepared material.

We have demonstrated a highly stable electric heater made of oxidation-resistant MXene film, which was capable of stable operation in air under highly oxidizing conditions (70 °C, 100% RH).