Carbon nanotube-loaded liquid crystalline Diels− Alder networks (CNT-LCDANs) were prepared and utilized to investigate twisted fiber and spring actuators for light-driven rolling movement. The twisted fiber actuator was obtained by inserting twists into uniaxially stretched thin rods, while the spring actuator was built up by coiling the twisted fiber with either the same or opposite handedness, giving rise to a homochiral and heterochiral spring actuator, respectively. The programming of such hierarchically twisted geometries of liquid crystalline polymer networks was enabled by the easy processing and the concomitant stabilization of LC alignment of CNT-LCDAN due to the dynamic, thermally reversible DA-bonded cross-links. High-performance, environment-adaptable rolling motion powered by constant exposure to light was achieved with the twisted fiber and spring actuators. The appealing characteristics include ultrafast motion speed (reaching 22 mm s −1 ), multiterrain locomotion (including sand, water, and human hand), movement under near-infrared (NIR) or visible light or even natural sunlight (on dark gray or black paper), and squeezing through narrowed opening through in-motion reversible body compression and extension. The material of CNT-LCDAN and its twisted fiber and spring actuators hold promise in the development of next-generation soft robotics.

A porous liquid‐crystalline network (LCN), prepared by using a template method, was found to exhibit peculiar actuation functions. The creation of porosity makes the initially hydrophobic LCN behave like a hydrogel, capable of absorbing a large volume of water (up to ten times the sample size of LCN). When the amount of absorbed water is relatively small (about 100 % swelling ratio), the porous LCN displays anisotropic swelling in water and, in the same time, the retained uniaxial alignment of mesogens ensures a thermally induced shape change associated with a LC‐isotropic phase transition. Combining the characteristic actuation mechanisms of LCN (order–disorder transition of mesogens) and hydrogel (water absorption), such porous LCNs can be explored for versatile stimuli‐triggered shape transformations. Moreover, the porosity enables loading/removal/reloading of functional fillers such as ionic liquids, photothermal dyes and fluorophores, which imparts the porous LCN actuator with reconfigurable functions such as ionic conductivity, light‐driven locomotion, and emissive color.

Reactive oxygen species (ROS)-responsive prodrug nanoplatform (ROS-RPN) can controllably deliver drugs triggered by the overproduced ROS in tumor tissues. However, ROS-RPN may not work efficiently due to insufficient ROS concentrations,...