Flow past obstacle clusters in micro-channels is central to a wide range of microfluidic applications, yet its fundamental hydrodynamics remain poorly understood under strong geometric confinement. No-slip boundary conditions on all walls enforce inherently three-dimensional (3D) flow structures in fully confined micro-channels, fundamentally altering wake formation, momentum transport, and drag mechanisms. A combined experimental and […]
Magnetic remote actuation of soft materials is attractive for applications such as transforming materials and medical robots. However, due to manufacturing limitations, microscale magnetoactive devices are scarce and light-based additive manufacturing methods, despite achieving microscale resolution, struggle with particle-induced light scattering. Moreover, large hard-magnetic microparticles restrict ultimate feature sizes and deformation of soft-magnetic nanoparticle composites […]
Magnetic remote actuation of soft materials is attractive for applications such as transforming materials and medical robots. However, due to manufacturing limitations, microscale magnetoactive devices are scarce and light-based additive manufacturing methods, despite achieving microscale resolution, struggle with particle-induced light scattering. Moreover, large hard-magnetic microparticles restrict ultimate feature sizes and deformation of soft-magnetic nanoparticle composites […]
We present a scalable cryo-CMOS controller for color-center-based quantum processors. A diamond waveguide micro-chiplet with NVs is pick-and-placed on CMOS with a 3D-printed prism for scalable photonic readout. A serial qubit driver array using grid inductors and pulse-width modulators generates a programmable 2.87GHz magnetic field for each qubit with low power and strong confinement. Up […]
Shape memory polymers capable of recovering their original form after deformation are highly desirable for applications in soft robotics, biomedical engineering, and microfabrication. However, integrating shape memory properties into 3D-printed microstructures with ultra-low mass remains a challenge, as most existing systems lack sufficient resolution or mechanical robustness at the microscale. In this study, a poly(ε-caprolactone)-based […]
We present a modular design strategy for the one-step fabrication of arrays of magnetically responsive microactuators connected to the substrate via compliant hinges. We use direct laser writing in the form of two-photon crosslinking within bilayer films to generate three-dimensional microstructures in which magnetic nanoparticles are embedded in the upper layer. This part of the […]
Two-photon polymerization (2PP) has garnered increasing attention for engineering hydrogels with tailored architectures and controlled cellular responses. However, current 2PP strategies typically rely on (meth)acrylated proteins and inefficient chain-growth crosslinking mechanisms. Although thiol-ene photo-click reactions can enhance 2PP efficiency, commercial water-soluble thiol crosslinkers (e.g., DTT—dithiothreitol) tend to form intramolecular loops and introduce structural defects due […]
The integration of biologically inspired materials into photonic device fabrication offers a promising route toward sustainable and biocompatible alternative to conventional in inorganic or petroleum based synthetic materials used in optoelectronic systems. In this work, we present a biosynthetic approach for waveguide fabrication utilizing a biomimetic – de novo designed elastin-like polypeptide (ELP) formulated into […]
Microstructured foams are emerging as a promising class of targets, with applications ranging from laser-driven particle acceleration to inertial confinement fusion. To unlock their full potential, a deeper understanding of their properties, especially the changes and behavior of the microstructure under extreme conditions, is required. While recently advancing 3D printed foam targets can be observed […]
Fiber-based passive mode-locked lasers (MLLs) are a well-established technology for high-speed optical communications, capable of generating ultrashort pulses with high energy. While most commercial MLLs operate at repetition rates around 100 MHz, increasing this frequency to the GHz range introduces significant challenges, including polarization control, efficient saturation of the saturable absorber, heat dissipation and the […]
