Inside Cover: In article 2200586, Sandra Schlögl and co-workers demonstrate that Acrylate functional coumarin monomers are synthetized cured by wavelength orthogonal photoreactions yielding soft (405 nm) stiff (365 networks. Advancing from thin films, the dual 3D printing of active devices is demonstrated with locally controlled mechanical thermal properties using a single vat. The concept high...

Front Cover: In article number 2200343, Robert J. Clements, Elda Hegmann and co-workers present a photo-crosslinkable smectic-A liquid crystal elastomer (LCE) designed for 3D printing. X-ray diffraction data indicate steady orientation of the LC units within structure with LCE layer normal oriented perpendicular to printed strut surfaces. This transfers its anisotropic properties cells, inducin...

Wearable Electronics In article number 2200256, Seungjun Chung, Chong Rae Park, Heesuk Kim and co-workers fabricate a highly integrated, wearable carbon-nanotube-yarn (CNTY)-based thermoelectric generator (TEG) by precisely doping CNTY into p- n-type segments via picoliter scale inkjet printing (depicted as splash of solution). The TEG can conformably wrap around bodies harvest electric energy ...

Transfer Printing In article number 2214409, Virgilio Mattoli and co-workers develop a method to fabricate 3D two-photon polymerized microstructures onto complex (i.e. highly curved, multi-oriented or irregular) surfaces. Ultra-thin polymeric membranes serve as suspended sacrificial support print, handle, precisely transfer the microelements, few tens nanometers adhesive make latter conform on ...

OBJECTIVES We aimed to assess the exposure of offset printing workers to hazardous substances in the rinsing processes of small-sized companies using a control banding method. METHODS We obtained half-year amounts of hazardous substances purchased through a questionnaire survey and the hazardous information from the safety data sheets (SDSs) and related literature. RESULTS The amount of pet...

Colloidal Crystal Micropatterns In article number 2205462, Wang and co-workers report a surface tension gradient-driven self-assembly strategy for the ultrafast fabrication of large-area colloidal crystals. Inspired by ink microprinting, nanoparticle transfer printing method is further proposed to convert close-packed monolayers into high-resolution conformal micropatterns. This user-friendly, ...

Melt Electrowriting In article number 2209244, Carlos Sánchez-Somolinos and co-workers report on the melt electrowriting of liquid crystal elastomers to digitally position ultrafine fibers with controlled morphology. The presented methodology enables preparation well-defined, high-aspect-ratio scaffolds small dimensions hardly accessible conventional extrusion-based printing techniques. This pl...

4D metamaterials with zero Poisson’s ratio, shape-memory recovery, and high energy-absorption features are introduced in the article number 2200656 by Mahdi Bodaghi co-workers. Thermo-mechanical designed based on star-shaped unit-cells fabricated printing technology. It is shown that they have great potential energy absorbing applications like reversible car bumpers where plastic deformations c...

In article number 2100746, Shengzhong (Frank) Liu, Zhong-Shuai Wu and co-workers report an aqueous MXene/PH1000 hybrid ink for inkjet printing of planar micro-supercapacitors, which can serve as a flexible energy storage unit Si film solar cells supply power printable temperature sensors. Such inks are expected to allow scalable customizable fabrication sources next-generation, self-sustaining,...

Thermo-Responsive Nanocomposite Bioinks Poly(organophosphazene)-based thermo-responsive nanocomposite bioink, with tunable mechanical property under a moderate temperature range, exhibits good 3D printing outcomes without additional chemical crosslinking process. The bioink encapsulates growth factors through physical interaction, exhibiting biological activities and therapeutic potential for b...