Articles tagged with Nanostructures
Researchers at Purdue University have developed a new steel alloy with extraordinary strength and plasticity, achieving a yield strength of about 700 megapascals. The treatment produced ultra-fine metal grains that exhibit super-plasticity, allowing the material to stretch and bend without rupturing.
F. Ömer Ilday brings ultrafast lasers expertise to Ruhr University, focusing on materials science and complex laser-matter interactions. He aims to establish a new center for interdisciplinary collaborations and promote start-ups.
Researchers developed an ultrafast laser processing technology based on non-contact microspheres, realizing <50 nm functional nano-patternings on phase change materials. The method achieves a good balance between working distance and feature size, overcoming the optical diffraction limit.
Paderborn researchers develop innovative approach to generating higher harmonics in silicon metasurfaces, increasing efficiency through the Fano effect. The study enables third harmonics to be generated much more efficiently than with previous known structures.
The article discusses the fabrication and applications of van der Waals heterostructures (vdWHs), which have unique properties and potential for exploring condensed matter physics. Various strategies for fabricating vdWHs were developed in the past decade, leading to promising functionalities in diverse fields.
Scientists have successfully engineered multi-layered nanostructures of transition metal dichalcogenides to form junctions, enabling the creation of tunnel field-effect transistors (TFETs) with ultra-low power consumption. The method is scalable over large areas, making it suitable for implementation in modern electronics.
Researchers successfully applied reinforcement learning to protein design, creating proteins with improved antibody generation and accurate nano-structures. The approach may lead to more potent vaccines and novel applications in regenerative medicine.
Researchers at Nagoya University have synthesized methylene-bridged [n]cycloparaphenylenes ([n]MCPPs) with varying ring sizes, exhibiting unique properties such as fluorescence and paratropic belt currents. The discovery has significant implications for studying magnetic properties of aromatic nanobelts.
Osaka University researchers develop a cellulose-based material, called nanopaper e-skin, that makes effective contact with the skin while maintaining breathability and comfort. The substrate can withstand deformation, sterilization, and environmental sustainability, making it a promising candidate for electrophysiological monitoring.
Researchers have developed a novel photoelectrochemical ultraviolet photodetector that can detect two types of ultraviolet light using a multilayered nanostructure. The detector's performance can be regulated through light intensity and external bias, enabling easy adaptation to environmental changes.
Researchers have synthesized NiO nanospheres with fast switching speed and excellent cycling stability, indicating promising application potential in high-performance electrochromic devices. The as-prepared nanospheres exhibited a fast coloring/bleaching speed and excellent cycling stability.
Researchers developed a novel optical imaging approach to observe cell secretions in space and time, revealing key heterogeneity and potential for pharmaceutical development. The method has tremendous potential for high-throughput screening of individual cells and studying delicate antibody-secreting human donor B-cells.
Human macrophages use Siglec-14 receptors to recognize and engulf carbon nanotubes, leading to inflammation. The discovery could pave the way for developing safer carbon nanotubes and therapies to prevent inflammatory diseases.
A team of researchers at the Max Born Institute developed a novel method for X-ray Magnetic Circular Dichroism (XMCD) spectroscopy using a laser-driven plasma source. This breakthrough enables precise determination of magnetic moments in buried layers without damaging samples, and can monitor ultrafast magnetization processes.
Researchers developed a method to characterize nanomaterials using sequential infiltration synthesis in nanostructured polymers. This technique allows for the creation of extremely small structures on semiconductor surfaces, enabling further miniaturization of next-generation microelectronic components.
Researchers have developed a novel technology for nanoencapsulation of bioactive compounds, specifically anthocyanin, using pectin and lysozyme. The methodology ensures slow release of the compound, allowing it to survive gut bacteria and digestive enzymes.
Scientists create hybrid composite scaffolds with aligned nanofibrous architectures to improve cell seeding efficiency, proliferation rates, and morphogenesis. The findings have potential applications in tissue repairing and regenerative medicine.
Researchers developed an in situ technique to observe material behavior under various stresses, including shear stress. This allows for precise understanding of how materials respond and identify preferred slip planes.
Researchers pioneered a technique to observe the 3D internal structure of rechargeable batteries, enabling direct observation of the solid electric interface (SEI) and its progression. The study reveals key predictors of SEI layer formation in a complex interplay of molecular dimensions, surface properties, and solvent interactions.
A UCF researcher has developed the first environmentally friendly, multicolor alternative to pigment-based colorants using structural colors from butterflies. The new plasmonic paint is lightweight, non-toxic, and reflects the entire infrared spectrum, promising significant energy savings and reduced global warming.
Researchers developed a simple purification method using surfactants to separate hydrophobic DNA nanostructures from aggregates, enabling the construction of artificial cells and complex functions in molecular robots. The purified structures retain their ability to bind lipid vesicle surfaces.
Scientists at Universitat Autonoma de Barcelona have created spherical nanoparticles inspired by amyloid proteins that bind to the SARS-CoV2 spike protein with high affinity, preventing cell infection. The biocompatible and stable nanostructures also show great potency in blocking viral particles.
Scientists at Aarhus University and Berkeley Laboratory developed a method called RNA origami to design artificial RNA nanostructures. The technique allowed for the discovery of rules and mechanisms for RNA folding that will make it possible to build more ideal RNA particles for use in RNA-based medicine.
Researchers create novel method for chiral optical property tailoring by employing fs laser 3D direct writing on glass, enabling localized modifications without surrounding damage. The technique utilizes form birefringence and stress field to induce optical chirality, offering a new approach for 3D laser manufacturing.
Researchers create 'Lego-like' BIND interface to assemble stretchable devices with excellent mechanical and electrical performance. The interface allows for easy connection of modules, enabling the development of highly functional wearable devices or soft robots.
Researchers from Würzburg and Bielefeld successfully detect exotic states of quantum physics in a nanostructure, where light can exist as both on and off at the same time. This breakthrough enables the development of novel optical quantum technologies for future computer chips.
Researchers developed a new encryption method that encodes secret messages using brilliant colors created by silver nanostructures reacting to polarized light. The method's unique chiral response makes it more secure than traditional binary codes.
Researchers are exploring how a kind of clay can soak up carbon dioxide and store it, potentially reducing the impact of climate change. The study found that carbon dioxide is more stable in wet clay nanopores than in plain water.
Researchers at UT Dallas have developed novel carbon nanotube yarns called twistrons, which generate electricity when stretched or twisted. The new version has a higher energy conversion efficiency of up to 22.4% for tensile and torsional energy harvesting.
Researchers demonstrate the ability of GHz burst mode femtosecond laser pulses to create unique two-dimensional (2D) periodic surface nanostructures on silicon substrates. The GHz burst mode enhances ablation efficiency and quality compared to conventional single-pulse mode, enabling the formation of distinctive 2D LIPSS.
Researchers at Brookhaven National Laboratory have successfully discovered new materials using artificial intelligence and self-assembly. The AI-driven technique led to the discovery of three new nanostructures, expanding the scope of self-assembly's applications in microelectronics and catalysis.
A new optical coating system combines antifogging and antireflective properties, enhancing the performance of lidar systems and cameras. The technology, developed by Fraunhofer Institute for Applied Optics and Precision Engineering, has been tested in laboratory tests and has shown promising results.
Researchers at POSTECH have created a humidity-responsive display that changes brightness and color depending on humidity levels, allowing for infinite imaging capabilities. The technology uses polyvinyl alcohol (PVA) and single-step nanoimprinting to achieve high-tunability of holographic images.
A new software program developed by Duke Ph.D. student Dan Fu lets users create 3D structures made of DNA, including tiny vases, bowls, and hollow spheres. The software relies on a way to build with DNA described in 2011 by Hao Yan, which works by coiling a long DNA double helix into concentric rings to form the contours of the object.
A team of researchers has created a new method for fabricating nanodevices by shrinking hydrogels to create 3D patterns. This technique uses ultrafast two-photon lithography and can produce high-resolution patterns up to 13 times larger than the original size, enabling the creation of complex nanostructures.
Researchers at The University of Tokyo have developed a cheap and simple method to bond polymers to galvanized steel, resulting in lightweight and durable materials. The process involves pre-treating the steel with an acid wash and dipping it in hot water, creating nanoscale needle structures that allow for strong mechanical linkages.
A new parallel peripheral-photoinhibition lithography system has been developed, enabling the fabrication of subdiffraction-limit features with high efficiency. The system uses two beams to excite and inhibit polymerization, allowing for nonperiodic and complex patterns to be printed simultaneously.
Researchers at ARC Centre of Excellence for Transformative Meta-Optical Systems have developed a miniaturized optical system that can be integrated on a chip, allowing for the creation of 3D holograms. This technology has the potential to replace current 2D imaging, enabling less invasive surgeries and better surgical outcomes.
MIT engineers create ultralight fabric solar cells that can generate 18 times more power-per-kilogram than conventional solar cells, making them ideal for wearable power fabrics or deployment in remote locations. The technology can be integrated into built environments with minimal installation needs.
Researchers from City University of Hong Kong developed a new ultra-stable hydrogen evolution reaction electrocatalyst based on two-dimensional mineral gel nanosheets. The catalyst exhibits excellent electrocatalytic activity and long-term durability, with an overpotential of only 38.5 mV at 10 mA cm−2.
The new monochromator optics increase photon flux in the tender X-ray range by a factor of 100, allowing highly sensitive spectromicroscopic measurements with high resolutions. This enables data collection on nanoscale materials, such as catalytically active nanoparticles and modern microchip structures, for the first time.
Scientists at Tokyo University of Science developed an 'extended Landau free energy model' to analyze complex interactions in nanomagnetic devices, enabling causal analysis and visualization. The model proposed optimal structures for nano-devices with low power consumption.
A team of international researchers has designed new kinds of materials that are potentially tougher, more versatile and more sustainable than what humans can make on their own. These materials mix different proteins and molecules to achieve properties not possible with traditional metals or plastics.
A POSTECH research team developed single-cell-driven tri-channel encryption meta-displays, which project different images depending on where you look at them. These displays overcome the limitations of conventional metasurfaces by combining amplitude modulation and geometric phase manipulation.
Researchers at Brookhaven National Laboratory create a new way to guide the self-assembly of novel nanoscale structures using simple polymers as starting materials. The team describes their approach in a paper published in Nature Communications, which shows that different shapes have dramatically different electrical conductivity.
Researchers at Aalto University developed a new material that changes its electrical behavior based on previous experience, effectively giving it adaptive memory. The material responds differently to varying magnetic field strengths, which affects its conductivity and allows for bistability and rudimentary learning-like properties.
Researchers have developed a method for centimeter-scale color printing using grayscale laser writing, achieving vivid and fine-tunable colors. The technique leverages pixelated optical cavities to generate transmission colors with a transmission efficiency of 39-50%.
Researchers develop Janus Bi, a platform for creating highly asymmetrical nano-architectures with 2D materials, inspired by nature's efficient light transformation processes. The project aims to produce scalable nanotechnological objects with light conversion capabilities.
Researchers at Tokyo Institute of Technology have developed a novel nanowire fabrication technique, allowing for the direct creation of ultrafine L10-ordered CoPt nanowires with high coercivity on silicon substrates. The technique enables significant improvements in spintronic device fabrication.
Researchers developed a novel method to create deep nanochannels in hard and brittle materials like silica, diamond, and sapphire. By employing femtosecond laser direct writing technology, they achieved sub-100-nm feature sizes and ultrahigh aspect ratios.
A research team from DTU has successfully designed and built a structure that concentrates light in a volume 12 times below the diffraction limit, paving the way for revolutionary new technologies. The breakthrough could lead to more sustainable chip architectures that use less energy.
MIT researchers have developed a new approach to assemble nanoscale devices from the bottom up, using precise forces to arrange particles and transfer them to surfaces. This technique enables the formation of high-resolution, nanoscale features integrated with nanoparticles, boosting device performance.
Researchers at HZB develop tandem solar cells using perovskite and silicon, achieving record-breaking efficiencies of up to 29.8%. Customized nanotextures improve perovskite semiconductor materials by reducing reflection losses and parasitic absorption.
Researchers at Okayama University found that an acidic adsorption layer in carbon nanotubes facilitates efficient adsorption of negatively charged nitrate anions, making the aqueous solution alkaline. This study provides a novel model for designing carbon nanotubes suitable for ion adsorption and purification.
Researchers have discovered an innovative way to enhance the energy efficiency of metal-carbon dioxide batteries by introducing unconventional phase nanomaterials as catalysts. The novel design boosts battery energy efficiency up to 83.8%, contributing to carbon-neutral goals.
Researchers have successfully prepared highly dense superconducting bulk magnesium diboride with a high current density using an unconventional spark plasma sintering method. The material exhibits excellent superconducting properties, including a high critical current density of up to 6.75 x 10^5 ampere/cm^2 at -253°C.
Researchers developed a metasurface device with three working modes, exploiting nanostructures to manipulate light and create holographic or structural-color nanoprinting images. The device offers two layers of security for anticounterfeiting measures, providing a simple yet effective approach to fight against counterfeiting.
Researchers from HKU-CAS have created a new material that can produce dual-color spots inspired by nature, leading to innovative applications in message encryption and storage. The breakthrough was achieved through the self-assembly of nanostructures in a one-pot method, enabling programmable binary color information.
Scientists at University of Texas at Austin and NC State University have discovered anelasticity, a phenomenon where materials react to stresses over time, allowing for energy dissipation. This property could lead to the development of lightweight shock absorbers for electronics.
Researchers have identified surface-based chiral nanostructures as the potential culprit behind plastics turning yellow over time. The study suggests that these structures, formed on the surface of polyethylene films exposed to UV light, are a key factor in the degradation process and the resulting yellow color change.