Abstract Highly programmable shape morphing of 4D-printed micro/nanostructures are urgently desired for applications in robotics and intelligent systems. However, due to the lack autonomous holistic strategies throughout target input, optimal material distribution generation, fabrication program output, 4D nanoprinting that permits arbitrary remains a challenging task manual design. In this study, we report an inverse encoding strategy decipher genetic code property distributions can guide...

This paper demonstrates femtosecond laser direct writing mediated flexible integration of plasmonic Ag/Pd alloy nanostructures that can be potentially used as a robust surface‐enhanced Raman spectroscopy substrate inside the microfluidic chip. Silver–palladium with controllable composition ratio patterned into due to two‐photon absorption induced coreduction silver/palladium double metal ions. Since structures effectively protect silver from oxidation, thus they facilitate stable on‐chip...

Abstract Magnetic fiber robots have revealed great potential for future minimally invasive robotic surgery. However, with the miniaturization of robots, integration functional microtools at distal end becomes extremely challenging, since it requires assembling multifunctional structures on curved surfaces ends, which typically very small curvature radii. In this study, a submillimeter robot integrated micro‐manipulation tool is reported using “Swiss roll” assembly strategy. This approach...

Abstract A surface‐enhanced Raman scattering (SERS)‐active microfluidic device with tunable surface plasmon resonances is presented here. It constructed by silver grating substrates prepared two‐beam laser interference of photoresists and subsequent metal evaporation coating, as well PDMS microchannel derived from soft lithography. By varying the period gratings 200 to 550 nm, (SPRs) could be tuned in a certain range. When SPRs match excitation line, highest enhancement factor 2×10 7...

Herein, we report a facile approach for rapid and maskless production of subwavelength structured antireflective surfaces with high broadband transmittance—direct laser interference ablation. The interfered beams were introduced into the surface bare optical substrate, where consisting micropillar array produced by two-step irradiation in time frame seconds. A multiple exposure two-beam was proposed instead multiple-beam to simply realize planar patterns aspect ratio. Tall sinusoidal pillars...

Abstract Magnetic soft robots with multimodal locomotion have demonstrated significant potential for target manipulation tasks in hard‐to‐reach spaces recent years. Achieving universal between and their targets requires a nondestructive easily switchable interaction broad applicability across diverse targets. However, establishing versatile dynamic interactions robotic systems remains challenge. Herein, series of magnetic millirobots capable magnetically adhesion is reported. Through...

Recent advancements in smart materials and robotics have propelled the development of magnetic milli‐robots with significant potential biomedical diagnostics, industrial automation, environmental monitoring. However, challenge achieving situ functionalization these small, flexible robots without compromising their agility has hindered widespread deployment. Herein, a femtosecond laser‐driven hierarchical assembly mechanism that facilitates seamless integration Additive‐LIPSS (laser‐induced...

Compound eyes are unique optical imaging systems that consist of numerous separate light-sensitive units (ommatidia). Attempts have been made to produce artificial compound via advanced 3D nanotechnologies. Among them, femtosecond laser direct writing (FsLDW) technology has emerged as an effective strategy due its distinct advantages in designable and high precision fabrication capability. However, the point-by-point scanning process results a very low efficiency, limiting practical...

Compound eyes of arthropods are widespread and fascinating visual systems created by natural evolution. consist many identical small eye units called ommatidia, each which is an individual imaging system composed cornea lens, crystalline cone rhabdome. Compared with single eyes, compound have distinct advantages in volumes, large field view, depth field, high temporal resolution. Therefore, it has sparked considerable research interests developing various manufacturing technologies towards...

Biomimetic switchable adhesion interfaces (BSAIs) with dynamic states have demonstrated significant advantages in micro-manipulation and bio-detection. Among them, gecko-inspired adhesives garnered considerable attention due to their exceptional adaptability extreme environments. However, high strength poses challenges achieving flexible control. Herein, we propose an elegant efficient approach by fabricating three-dimensional mushroom-shaped polydimethylsiloxane (PDMS) micropillars on a...

In this paper, a maskless, high efficiency, and flexible technology is developed to fabricate three-dimensional (3D) microstructures on silicon wafer, which based the combination of femtosecond laser modification subsequent dry etching. The atoms in 2D patterned areas were insufficiently oxidized after irradiation. Complex 3D structures can be fabricated wafer etching, such as micro gears, comb drive actuators, cantilevers applied microelectromechanical systems (MEMS) Fresnel zone plates...

The capture for space debris by tethered net robot (TSNR) is formulized as a time-varying formation tracking problem with scaling size. To ensure successful capture, the contact dynamics, configuration optimization and control are investigated in this paper. Different from existing research, more realistic complex shape involved to gain understanding of dynamics. Moreover, design size wrap TSNR during converted an approximate path planning solved sequential convex programming. Additionally,...

Abstract Switchable adhesion, a phenomenon characterized by the ability to transition between attachment and detachment states under external stimuli, has recently gained popularity in various advanced devices. The realization of desired functionalities on such surfaces relies intricate interfacial designs. A general understanding commonalities distinctions among these designs can foster development refined switchable adhesion interfaces (SAIs). To address this, this review first examines...

Although femtosecond laser machining has been widely used for fabricating arbitrary micro/nano structures, it suffers from the problems of low fabrication efficiency and high surface roughness when processing hardmaterials. A dry-etching-assisted (DE-FsLM) approach is proposed to solve these problems. As dry etching system compatible with IC process, DE-FsLM technology shows great potential application in device integration industry. (Picture: Prof. Hong-Bo Sun et al., article number...

In article number 1600270, Qi-Dai Chen and co-workers demonstrate a flexible facile integration method for robust SERS substrates inside microfluidic channels by femtosecond laser induced co-reduction process of silver palladium. Because the as-formed Ag-Pd alloy nanostructure is capable protecting itself from rapid oxidation, this could enable creation stable on-chip detection device with long life-time.