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Liquid crystal elastomers are used in actuators, though methods to pre-program actuation limits the geometric design. Here the authors show a method of treating the elastomers in free-radical initiator to program actuation.

Digital light processing 3D printing can be used for shaping materials into complex geometries, but the useable materials are limited to photoactive resins. Here, the authors report a method using DLP-printed water-soluble granular polyacrylamide as a sacrificial mould to allow the preparation of complex microstructures.

High-fidelity personalized anatomical models can offer invaluable support for precision medicine. Here, the authors show the 3D printing of self-healing liver models, which can be resected in a trial and-error manner for surgical training to enhance the safety of hepatic surgery.

Acoustic graphene plasmons (AGPs) hold promise for nanophotonics and sensing applications. Here, the authors observe enhanced in-plane scattering of mid-infrared AGPs caused by atomic steps on the substrate surface, suggesting potential strategies for controlling their propagation via substrate engineering.

Stresses are often detrimental to the mechanical properties of materials but when well controlled can lead to unusual opportunities in various technological areas. Here the authors report a digital photothermal mechanism enabled laser printing that allows freedom in stress manipulation in dynamic covalent shape memory polymers.

Stimuli responsive hydrogels can be used in optical communication, but are not always as complex as required. Here, the authors report the use of 4D hydrogel morphing for gated verification of optical information.

Patients with hepatocellular carcinoma require regular follow-up. Here, using Cox-based feature selection to identify key prognostic features, the authors convert time-series follow-up data into a cascading survival map, and show that the approach improves dynamic prognosis prediction for patients.

The commercial application of 3D printing is limited by time constraints and current efforts to speed the process are economically inefficient. Here the authors report on the use of a green and inexpensive hydrogel to separate the interface and cured components in common stereolithographic processes to allow for rapid printing.

Three-dimensional photo-printable resin chemistry yields an elastomer with tensile strength of 94.6  MPa and toughness of 310.4  MJ  m⁻³, both of which far exceed that of any three-dimensional printed elastomer.

Current strategies for recycling cross-linked polyurethane foam waste are economically unattractive and/or lead to recycled products with inferior properties. Now it has been shown that a cost-effective chemical strategy can be used to turn the foam into high-performance value-added three-dimensional photo-printing resins.

3D printing allows preparation of versatile polymer materials for device applications, but properties are often fixed following printing. Here, the authors report a photo-printable dynamic covalent network that allows modification of properties following printing.

There is a strong push to develop new catalysts and supports to convert low-value CO₂ into high-value CH₄. Here, authors found that the internal or external confinement of Ni on multi-layered siloxene supports determined the reaction pathway, activity, selectivity, and stability in CO₂ methanation.

Optical nonlinearity in the THz range is of interest for scientific applications. Here the authors show that THz nonlinearity in ionic crystals can be enhanced by orders of magnitude through phonon polaritons, which is also described by nonlinear modified Huang equations.

We demonstrate a giant terahertz frequency Kerr nonlinearity mediated by stimulated phonon polaritons, which provides a new avenue for the future terahertz technologies.

Light-matter interaction has been dominated by Born-Oppenheimer approximation for centuries. Here the authors proposed a light-matter interaction mechanism beyond this approximation, proposing stimulated phonon polariton-mediated light-matter interaction, showing further understanding and applications in the fields of optics/photonics and condensed-matter physics.