Articles tagged with Nanostructures
A new single-photon detector has been developed, achieving a previously unattained detection efficiency of 91% and low error rate. The detector's high performance enables reliable detection of single photons, crucial for optical data transmission and quantum computation.
Researchers developed a new diagnostic tool using atomic force microscope based infrared spectroscopy to characterize polymer nanostructures and identify integrated materials. The technique allows for chemical analysis of polymer lines as small as 100 nm, enabling critically needed metrology for nano-manufacturing.
Researchers at Arizona State University develop first vaccine complex that can be delivered safely and effectively by piggybacking onto self-assembled, three-dimensional DNA nanostructures. The vaccine complexes trigger a robust immune response up to 9-fold higher than traditional methods.
Researchers have developed a novel magnetic memory that can store information in the form of resistance variations. By applying an electric pulse, the metal-organic molecule can be switched between a conductive, magnetic state and a low-conductive, non-magnetic state.
Researchers at KIT have successfully manufactured a pentamode metamaterial, also known as a metafluid, which exhibits unique mechanical properties. The material's behavior is determined by varying parameters, allowing it to mimic the properties of water and other substances.
Scientists have developed a new technique that allows for the mapping of nanoparticle atomic structures using transmission electron microscopes, removing barriers to widespread use. The method produces highly similar results with x-ray synchrotron data and has potential applications in energy, medicine, and materials science.
Researchers have successfully built nano spiral staircases with tailored optical material from DNA, modifying light in specific ways. The findings confirm predictions and show promise for developing novel optical lens systems with negative refractive index.
Scientists at the University of Massachusetts Amherst have developed a simplified method to create ordered magnetic materials using nanostructures, achieving room-temperature ferromagnetism with fewer steps than before. The process uses block copolymers to confine magnetic particles, inducing stronger interactions and yielding stable m...
Researchers at the University of Manchester and Cambridge have discovered a way to enhance graphene devices for photodetectors in high-speed optical communications by 20 times. This is due to the addition of metallic nanostructures that concentrate light within the graphene layer, increasing its efficiency.
Scientists at Columbia University have engineered optical nanostructures to fully control light dispersion and propagate light without accumulating phase. This breakthrough enables self-focusing light beams, highly directive antennas, and potentially cloaking objects.
Researchers developed a 3D invisibility cloak that guides light waves around an object, making it invisible to the human eye. The cloaking material is structured in the nanometer range and has precisely defined thicknesses, enabling it to manipulate light waves with unprecedented precision.
A University of Houston researcher is developing new class of contrasting agents by using iron nanostructures to provide color to MRI images. This will enable easier interpretation and identification of internal tissues. The technology also has potential applications in tracking stem cells and targeting cancer cells.
Researchers at KIT have successfully cultivated cells on three-dimensional structures with precise control over adhesion and cell shape. The team developed a special polymer scaffold using the Direct Laser Writing Method, which allows for the growth of individual cells in specific locations.
Scientists at NIST have developed a method to measure the wear and degradation of AFM tips in real time, allowing for dramatic improvements in precision and speed. This technique uses contact resonance force microscopy to track the resonant frequency of the sensor tip, enabling atomic-scale resolution and reducing inaccuracies.
Scientists have developed a new method for high-resolution chemical imaging on the nanoscale, providing detailed information about molecular chemistry and interactions. This technique allows researchers to decipher the functionality of nanostructures with rich detail.
Researchers developed a simple way to create short, spiral-shaped polypeptide chains that dissolve in water, which could be used as building blocks for self-assembling nanostructures and agents for drug delivery. The method involves elongating side chains to increase solubility while maintaining helical structure.
Researchers from KIT and IPCMS have developed the world's smallest magnetic field sensor using organic molecules. This breakthrough has significant potential for increasing reading speed and data density in hard disks and non-volatile memories.
Researchers at Helmholtz Association create ultrafast image sequences of nanostructures, enabling real-time observation of molecules and nanostructures. The breakthrough method uses X-ray pulses to capture images at femtosecond intervals, paving the way for new insights into fundamental processes in natural sciences.
Researchers at Arizona State University created nanoscale DNA Möbius strips, measuring 50 nanometers across, using DNA origami and Kirigami techniques. The unique structures have potential applications in biology, chemistry, and electronics.
A study by North Carolina State University researchers has discovered a way to create ultra-strong aluminum alloys using nanostructures. The new materials exhibit exceptional strength while maintaining ductility and can be used on various metals. This breakthrough is crucial for developing lighter yet stronger materials.
Researchers demonstrate first full quantum control of qubit spin in tiny colloidal nanostructures, advancing quantum computing and energy generation technologies. The discovery enables precise control over light-matter interactions, paving the way for more efficient photovoltaic cells and potential breakthroughs in climate change.
A new approach to applying nanostructure coatings has been discovered, achieving heat transfer four times faster than uncoated surfaces. The technology has potential applications in high-tech devices and conventional heating and cooling industries.
Duke University engineer Chris Dwyer demonstrates that DNA can be used to create simple logic gates, or switches, using light to excite molecules. This technology has the potential to produce virtually unlimited supplies of these tiny circuits, paving the way for faster and more efficient computing.
Research in unconventional polarization states of light has the potential to affect a broad range of disciplines. Beams with certain geometrical symmetries can create small focal regions of axially polarized light, essential for interacting with nanostructures and coupling to fields tightly confined to metal surfaces.
The Georgia Institute of Technology has been awarded a $10.5 million U.S. Air Force Center of Excellence to design nanostructures for energy harvesting and adaptive materials. The center will focus on developing tools to optimize critical cognitive processes of the modern warfighter.
Researchers at Georgia Tech have developed a new type of three-dimensional photovoltaic system using zinc oxide nanostructures grown on optical fibers. The approach allows PV systems to be hidden from view, providing an alternative to traditional rooftop installations.
Scientists at Harvard University have introduced kinks into arrow-straight nanowires, creating zigzagging 2-D and 3-D structures with enhanced electrical properties. These new nanostructures enable the integration of active devices, fostering potential breakthroughs in biomedicine and electronics.
Researchers at AFOSR are investigating carbon nanostructures for potential use in various military applications. They aim to develop materials with stable structures for molecular-level bonding and functional challenges.
Scientists at Caltech and IBM's Almaden Research Center have developed a technique to orient and position self-assembled DNA shapes on surfaces compatible with semiconductor manufacturing equipment. This allows for the precise assembly of computer-chip components, enabling smaller, faster, and more energy-efficient chips.
Researchers have found surprisingly strong long-range effects in certain electromagnetic nanostructures, which could add new challenges to the design of future ultra-high density data storage devices. The effects extend tens of nanometers and even up to 10 micrometers away from the antiferromagnetic material.
A new statistical analysis technique, sequential profile adjustment by regression (SPAR), has been developed to improve the precision of nanotechnology data. By identifying and removing systematic bias, noise, and equipment-based artifacts, SPAR can reduce experimental errors and increase confidence in measurements.
Researchers at the University of Rochester have developed a metal slab that can lift liquids using capillary action, moving them at speeds faster than nature. The metal's surface structure can be controlled to direct liquid flow or even create hydrophobic surfaces that prevent germ growth.
Scientists have designed nanosensors that can detect specific molecules, such as poisons and proteins, in transport screening situations or patients' blood samples. The sensors use a unique interaction between two metallic nanostructures to scatter light differently, allowing for highly sensitive detection.
Research by Yale University reveals that bird feathers create bright colors through nanostructures resembling a sponge with air bubbles. The structures self-assemble as the feather grows, replacing water bubbles with air, and have significant implications for the role of color in birds' plumage.
Physicists at UC Davis developed a technique to capture the magnetic structures of nanostructures buried within electronic devices, enabling new information storage and retrieval methods. This breakthrough enhances spintronics-based technology and facilitates probing variations in physical systems.
A team of Berkeley Lab researchers won a prestigious Gordon Bell Prize for their algorithm innovation in high-performance computing. They developed the Linearly Scaling 3D Fragment (LS3DF) method to efficiently simulate the behavior of nanostructures, achieving impressive performance and scalability.
Researchers at Arizona State University have developed a method to produce complex DNA nanostructures inside living cells, using the cell's copy machine to replicate millions of copies. This breakthrough could enable the scaling up of DNA nanotechnology and open up new possibilities for synthetic biology applications.
The City College of New York has received a $5 million NSF grant to establish a center for nanostructure applications, with Dr. Daniel L. Akins as the Director and Principal Investigator. The center will focus on addressing challenges in sustainable energy technologies, environmental monitoring, and national security threats.
Naomi Halas, a leading researcher in nanophotonics, has been honored with the Research Excellence Award for her innovative work on nanoparticle synthesis and its applications in biotechnology. Her invention of nanoshells has shown tunable optical properties, making them suitable for various medical applications.
Scientists have found that certain nanostructures are more susceptible to failure by fracture at specific sizes. This is due to phonon confinement, which affects thermal transport and electronic processes. The study provides valuable information for designing stable nanostructures with reduced fracture energy.
Researchers at Arizona State University have developed a synthetic analog of DNA, called Glycerol Nucleic Acid (GNA), with unique properties that can be used to create nanostructures. The team, led by John Chaput, has successfully synthesized self-assembled nanostructures composed entirely of GNA.
Professor Toh-Ming Lu, a renowned nanomaterials expert at Rensselaer Polytechnic Institute, has been named a lifetime fellow of the Materials Research Society. His groundbreaking research on thin film morphological evolution and nanostructure development has earned him recognition as an outstanding contributor to the field.
Researchers Monica Olvera de la Cruz and Graziano Vernizzi from Northwestern University discovered a new mechanism for charged molecules to organize into complex shapes, potentially leading to the design of functional nanostructures.
The US EPA has launched a voluntary program to collect safety data on engineered nanoscale materials, but experts argue that more action is needed to ensure public and market confidence in their safety. The program provides an opportunity for industry, NGOs, and other groups to voluntarily submit safety data.
Researchers at the University of Pennsylvania have identified a naturally occurring material that can be used as a template for building nanodevices. The discovery, published in Nature Materials, provides a simpler method for creating nanostructures by leveraging the spontaneous phase separation of a ceramic material at the nanoscale.
Researchers create microscopic devices as small as 10 nanometers, enabling simultaneous real-time atomic imaging and potential applications in sensors, electronics, and DNA sequencing. The new technique surpasses traditional methods, producing reliable metal nanostructures with novel mechanical properties.
Scientists have developed a new class of designer materials using common amino acids, which exhibit excellent potential for solubilizing membrane proteins and enzymes. These lipid-like peptides can also stabilize self-assembled liquid crystalline nanostructures with varying surface charge density.
Researchers have identified a lack of precise methods for studying nanostructured materials' atomic arrangements, dubbed the 'nanostructure problem.' A comprehensive solution requires coordination among multiple experimental methods and theory.
A new report explores nanotechnology's future, focusing on its potential to address the energy crisis, improve medical treatments, and provide clean water. Experts predict significant benefits in areas like cancer treatment, artificial tissues, and clean energy production.
Researchers have created nanosized fluorescent labels that hold promise for studying fundamental chemical and biochemical reactions in single molecules or cells. The new DNA nanotags offer unprecedented densities of fluorescent dyes, enabling extremely bright fluorescence-based imaging and medical diagnostics.
Researchers at Delft University of Technology have observed flowing nano ripples using an electron microscope, challenging existing theories on their formation. The observations reveal that the waves flow in the same direction as the incoming ions, contradicting previous assumptions about the movement of nano ripples.
Researchers at Arizona State University have created unique arrays of proteins tethered onto self-assembled DNA nanostructures. By controlling the exact position and location of chemical bases within a synthetic replica of DNA, a novel approach to attaching biomolecules has been achieved.
Researchers used block copolymers with oil-and-water repelling blocks to create self-assembling nanostructures, which were then controlled using zone casting. This technique produces highly organized polymer films that could serve as templates for creating ordered nanopatterns in various nanoelectronic devices.
Researchers use custom-built microscope to manipulate cobalt atoms on a copper lattice, observing and controlling atomic motion. The 'hip hop' sound effect is generated by converting electronic signals into audio, allowing real-time monitoring of atom position.
Researchers developed a method to create well-defined carbon nanoparticles using polyacrylonitrile copolymers. The approach enables the production of discrete carbon nanostructures with applications in energy storage/conversion devices and display technologies.
Researchers at Georgia Institute of Technology have developed seamless circular 'nanorings' made of piezoelectric zinc oxide. These structures can be used to test electrical and mechanical coupling at the nanoscale and offer unique properties for fabricating nanoscale electromechanical systems.
Researchers at Rice University have developed a quantum model to predict nanophotonic behavior, making it easier to design new optical materials and devices. The study shows that plasmons in nanoparticles hybridize with each other, allowing for the prediction of properties in complex metallic nanostructures.
Researchers at Rutgers-Newark are developing new nanoparticle structures that combine organic and inorganic materials. The team's innovative approach may lead to more efficient solar-energy conversion cells and devices capable of detecting pollutants.
Dordick and Sroga use hybrid proteins to manipulate linear DNA strands into unusual shapes, including three-dimensional cubes. These bio-inspired nanostructures can spontaneously assemble, saving researchers time and effort.
Researchers create DNA nanostructures up to 1,000 times smaller than commercial microarrays using the nanografting technique. This breakthrough enables the study of thousands of genes in a cell simultaneously.