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http://dx.doi.org/10.1021/acsbiomaterials.6b00447 | DOI Listing |
J Vis Exp
July 2025
School of Mechanical and Robotics Engineering, Gwangju Institute of Science and Technology;
In this work, a unique methodology is presented that utilizes van der Waals (vdW) interactions to fabricate residue-free single flakes of two-dimensional (2D) materials, which are subsequently assembled into intricate heterostructures. The approach focuses on ensuring that the flakes are free from any residue that could affect their properties and performance. Evidence from atomic force microscopy and Raman spectroscopy confirms that the transferred hexagonal boron nitride (h-BN) and molybdenum disulfide (MoS2) flakes exhibit excellent flatness and strain-free characteristics, which are crucial for various applications in electronics and optoelectronics.
View Article and Find Full Text PDFBiofabrication
July 2025
Collaborative Innovation Center of Tumor Marker Detection Technology, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, College of Medicine, Linyi University, Linyi 276005, People's Republic of China.
The reconstruction of human tubular structures-characterized by adjustable small diameters (<6 mm), multifurcated morphologies, and biomimetic functionality-remains a significant challenge, particularly for researchers lacking specialized fabrication skills. In this work, we present a simple and effective strategy to fabricate freestanding, multifurcated hydrogel microtubes with tunable diameters, perfusability, and endothelialization capability by integrating stimuli-responsive hydrogels with a bubble casting technique. Leveraging the adhesive interaction between hydrogels and silicone molds, this method enables the formation of multifurcated hydrogel microtubes with uniform thickness and interconnected structures within modularly assembled molds.
View Article and Find Full Text PDFAdv Mater
June 2025
School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing, 100124, China.
Ultrafast vortex lasers, capable of emitting structured femtosecond pulses with orbital angular momentum, hold great potential for high-speed optical communications, super-resolution imaging, and advanced laser processing. However, the direct generation of femtosecond vortex pulses in micro/nanoscale lasers remains a major challenge. Here, an ultrathin deployable femtosecond vortex laser based on a ≈200 nm-thick conjugated polymer gain membrane integrated with a square-lattice photonic crystal supporting symmetry-protected bound states in the continuum mode is demonstrated.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
June 2025
Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China.
Heteroatom-doping polycyclic aromatic hydrocarbons have attracted immense attention owing to their fascinating optoelectrical properties. However, precise heteroatom-doping engineering and fabricating charged polycyclic aromatic scaffolds remain challenging and far from satisfactory. Herein, a new family of nitrogen and sulfur/oxygen dual-doping fused Olympic heterocyclic cations (FPT/FPOs) are modularly synthesized employing an efficient and convenient metal-free protocol.
View Article and Find Full Text PDFACS Nano
February 2025
School of Medicine and Health, Harbin Institute of Technology, Harbin 150080, China.
Modularly organizing active micromachines into high-grade metamachines makes a great leap for operating the microscopic world in a biomimetic way. However, modulating the nonreciprocal interactions among different colloidal motors through chemical reactions to achieve the controllable construction of active colloidal metamachines with specific dynamic properties remains challenging. Here, we report the phototactic active colloidal metamachines constructed by shape-directed dynamic self-assembly of chemically driven peanut-shaped TiO colloidal motors and Janus spherical Pt/SiO colloidal motors.
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