Articles tagged with Nanotechnology
Scientists have developed a method to accurately measure the thermal expansion coefficient of 2D materials when heated, which could help engineers design next-generation electronics. The approach uses laser light to track vibrations of atoms in the material, allowing for precise measurements and confirming theoretical calculations.
Researchers at Singapore University of Technology and Design (SUTD) have developed a novel phase-change key for new hardware security. The device, known as the physical unclonable function (PUF), is scalable, energy-efficient, and secure against AI attacks compared to traditional silicon PUFs.
Researchers created an information engine using a glass bead suspended in water, exploiting thermal noise to convert it into work. The system uses Bayesian estimates to filter out measurement errors and performs significantly better than typical engines when noise is high.
Researchers developed a one-step synthesis route for LDHs using basic magnesium carbonate, reducing costs and environmental impact. The new process produces LDHs with nanosheet morphology and rich defects at room temperature.
Researchers at UNIST have developed a method to synthesize single-crystalline graphite films of up to inch scale, overcoming the critical issue of small size due to weak interaction between layers. The resulting films exhibit exceptional thermal conductivity and uniform quality.
Researchers have designed DNA-based transporters that can deliver precise concentrations of drugs, potentially improving cancer treatment. These nanotransporters can also be programmed to prolong the effect of a drug and minimize its dosage, reducing side effects.
Researchers at MIT and the University of Tokyo have developed a technique to synthesize many
A research group at Osaka Metropolitan University developed a nanovaccine that delivers cancer antigens to dendritic cells, inducing strong cellular immunity. The new system, using positively charged cationic lipids, increases cytokine production by approximately 100 times compared to previous designs.
A University of Central Florida researcher is leading a $1.25 million project to map and manipulate materials at the nanoscale. The research aims to unlock new capabilities of materials at the nanoscale, potentially leading to new catalysts and compounds applicable in quantum science, renewable energy, life sciences and sustainability.
A Japanese research team has synthesized isotopic atropisomers, a rare class of compounds, using ortho-CH3/CD3 discrimination. The resulting isotopic atropisomers exhibit high rotational stability and stereochemical purity.
Scientists from Harvard John A. Paulson School of Engineering and Applied Sciences have created a machine that uses surface tension of water to grab and manipulate microscopic objects, enabling nanoscopic manufacturing. The device can braid micrometer-scale fibers of synthetic material Kevlar, opening doors for high-frequency conductors.
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.
Physicists have observed novel quantum effects in a topological insulator at room temperature, opening up new possibilities for efficient quantum technologies. This breakthrough uses bismuth-based topological materials to bypass the need for ultra-low temperatures.
A team of scientists at PNNL created a new kind of micelle that detects SARS-CoV-2 in the air by bursting open upon contact with the virus, sending an immediate electronic signal. The detector has advantages over current technologies, requiring lower viral particle levels and producing fewer errors.
Researchers have developed an intermetallic palladium-zinc alloy with high corrosion resistance and improved catalytic activity. The alloy's unique structure creates a protective skeletal shell around the zinc atoms, preventing leaching and increasing its durability as an electrocatalyst for ethanol oxidation reactions.
Researchers at Northwestern University discovered that colloidal crystals with DNA can change shape in response to external stimuli, exhibiting a 'shape memory' effect. The crystals can break down but then revert to their original state when water is added, making them useful for sensing and optics applications.
Researchers at Kanazawa University and their international collaborators used 3D-AFM and molecular dynamics simulations to study the surface chemistry and structure of individual cellulose nanocrystal particles. The findings reveal new details on chain arrangements, structural defects, and water molecule arrangement near the CNC surface.
Researchers at Osaka Metropolitan University have developed a new positive electrode material for all-solid-state sodium batteries, enabling high energy storage capacity and long lifespan. The Na2FeS2 material uses inexpensive elements and achieves high reversibility during charging and discharging.
Researchers have developed a new DNA nanotechnology-driven method called Light-Seq that enables the analysis of gene expression patterns in hard-to-access cells within intact tissues. This approach overcomes limitations of existing spatial transcriptomics methods, allowing for deeper understanding of disease mechanisms and biology.
Researchers at Northwestern University developed a new CRISPR-based therapy platform that can deliver cargo to a broader range of tissue and cell types, increasing its potential for treating various diseases. The platform achieves this by transforming the Cas-9 protein into a spherical nucleic acid and loading it with critical components.
Researchers have created atomic-level 3D models using 'atom probe tomography' to study the effects of tiny amounts of substances on semiconductor materials. This allows for better understanding of material properties and potential applications in sustainable technology.
A new category of shape-memory materials made of ceramic, rather than metal, has been discovered by MIT researchers. The ceramic material can actuate without accumulating damage and withstand much higher temperatures than existing metals, making it suitable for applications such as actuators in jet engines.
Assistant Professor SUZUKI Hiroo and colleagues have developed a method to grow highly crystalline TMDCs, such as MoS2 and WS2, using chemical vapor deposition in a stacked substrate configuration. The technique produces samples with large domains and optimal photoluminescence characteristics.
Researchers observe atomic-level structural changes in bacterial ribosomes and their response to antibiotics, shedding light on mechanisms of action and potential off-target effects. The study provides new insights into the complex interactions between ribosomes and other cellular complexes.
Researchers develop a novel approach to increase proton transfer kinetics, enabling efficient industrial-scale water splitting. The new strategy, which integrates molecular-level proton acceptors into the catalyst, improves oxygen evolution reaction rates and achieves high current densities at low overpotential.
Scientists observed optical gradient force on chiral gold nanoparticles, revealing difference in force between D-form and L-form particles. The study also uncovered a previously unknown effect of wavelength on chirality-dependent optical forces.
Researchers at University of Göttingen develop a new method to convert CO2 into chemical substances by confining molecules in nano-sized environments. The team demonstrates the ability to break individual chemical bonds and restore them in single molecules under controlled conditions.
Scientists have developed a magnetized state in monolayer tungsten ditelluride, allowing for controlled electron flow and potential applications in non-volatile memory chips. The discovery enables the creation of smaller, more energy-efficient devices that consume less power and dissipate less energy.
Researchers at Bar-Ilan University have produced nanodiamonds capable of delivering medicinal and cosmetic remedies through the skin, eliminating the need for biopsies. The nanodiamonds can be precisely monitored non-invasively using a laser-based optical method, enabling targeted drug delivery and cosmetics application.
Recent studies in Journal of Pharmaceutical Analysis highlight innovative nanosensors for efficient biomolecular detection, including rutin, paracetamol, and hypochlorite. These advancements enable high sensitivity and reliability in clinical samples, paving the way for improved patient care.
Researchers have developed a method to create colorful solar panels by applying a thin layer of photonic glass, which reflects selective colors based on microscopic zinc sulfide spheres. The new technology results in energy efficiency improvements of up to 21.5% while maintaining color and durability.
Researchers developed nanometric photodiodes that can bind to nerve cell surfaces and activate them with infrared light, allowing for selective stimulation of individual neurons. This technology has the potential to study the nervous system in-depth and develop targeted therapies for neurological diseases.
A team of scientists at DGIST developed a dark field super-resolution microscope to observe endosome movement and rotation in real-time. The technology allows for the analysis of endosome behavior, shedding light on intracellular transport mechanisms.
Researchers developed a nanopore-scale glass-topped lab-on-a-chip to study complex fluid behaviors at the nanoscale. The device allowed for direct visual recordings of liquid to vapor and back to liquid phase changes, revealing that nanopore behavior influences production and affecting recovery discrepancies.
The €15.7 million AUFRANDE project aims to generate industry-relevant research by employing 64 early career doctoral researchers from French and Australian universities. Researchers will receive training and support, including annual workshops and group events, to foster high-performing early-stage researchers.
Researchers have developed a low-cost, spongy electrode made from a sugar cube template, offering improved signal detection and reduced noise. The device's micropores provide increased contact area with the skin, enabling it to monitor uterine contractions and other health issues with high quality.
Researchers at Pohang University of Science & Technology developed a novel flash memory technology that increases data storage capacity and reliability through artificial defect generation. The new platform can distinguish eight data levels, making it suitable for neuromorphic computing and improving inference accuracy.
Researchers at the University of Pittsburgh unveiled the first visualization of friction at the atomic level, showing that it occurs regardless of surface smoothness. This discovery could lead to better lubricants and materials to minimize friction and wear in machinery.
Cubic boron arsenide overcomes silicon's limitations, providing high electron and hole mobility and excellent thermal conductivity. The material has been shown to have a significant potential in various applications where its unique properties would make a difference.
Researchers developed a nanomembrane system called iTEARS that can quickly analyze tears for disease biomarkers. The system enables more efficient and less invasive molecular diagnoses for various diseases, including dry eye disease and diabetic retinopathy.
Rice chemists adapt flashing process to synthesize pure boron nitride and boron carbon nitride flakes with varying degrees of carbon. The flakes show promise as an effective anticorrosive coating, protecting copper surfaces up to 92% better than traditional compounds.
A study by the German Federal Institute for Risk Assessment found that micro- and nanoplastics can be taken up by human cells, particularly those in the small intestine and liver. The absorption of these particles is influenced by their size and chemical properties.
A new nanosheet-laminated photocatalytic membrane has been successfully developed by Kobe University researchers, demonstrating excellent water permeance and photocatalytic activity. The membrane's photocatalytic properties make it easier to clean, reducing fouling and increasing its potential for tackling global environmental issues.
Physicists at University of Münster successfully reveal dynamic interaction of molecular shuttles using molecular-dynamic simulations. The study provides detailed insight into how embedded machines function and interact, enabling targeted control of transport properties and catalytic processes.
Researchers at the University of California San Diego have developed temperature-resilient lithium-ion batteries with high energy density, compatible with high-temperature operation. These batteries could enable electric vehicles to travel farther on a single charge in cold climates and reduce overheating in hot climates.
Researchers from Kumamoto University create nanocavities using ovalene molecules on gold electrodes, trapping a single thiol molecule. This breakthrough enables precise molecular design for future electronic devices and sensors.
Metal-organic framework (MOF) nanosheet research has made significant advances in gas recovery and sensing materials. Professor Makiura's review article summarizes the development of MOF nanosheets on water surfaces, showcasing their potential for separation membranes and sensor miniaturization.
Researchers showcase electrospun nanomaterials' advantages over conventional materials for wearables. They offer enhanced porosity, breathability, and biocompatibility, enabling rapid charging, high energy storage capacities, and comfortable wearability.
Researchers developed a method for detecting cancer miRNA patterns using DNA computing technology, enabling simple and early cancer diagnosis from liquid biopsies. The technology uses nanopore decoding to recognize cancer-specific expression patterns even at extremely low concentrations of miRNA.
A new biodegradable food packaging system reduces microbial contamination and extends shelf life, reducing waste and foodborne illness. The system uses pullulan-based fibers with natural antimicrobial agents, demonstrating a significant reduction in contamination and an increase in avocado shelf life.
Researchers created a light-activated fish robot that rapidly swims around and removes microplastics from waterways. The robot's unique material allows it to heal itself and maintain its ability to adsorb pollutants.
A Quebec research team has successfully synthesized carbon quantum dots from brewery waste, offering a biocompatible alternative to traditional materials. The eco-responsible approach uses microbrewery waste as a source material, reducing the need for pure chemicals and toxins.
Researchers at MIT have developed a method to enable quantum sensors to detect any arbitrary frequency without losing nanoscale spatial resolution. The new system, called a quantum mixer, injects a second frequency into the detector using microwaves, enabling detection of signals with desired frequencies.
Researchers developed a scalable process for a biodegradable coating that protects against pathogenic and spoilage microorganisms, transportation damage, and reduces weight loss in avocados by 50%. The coating can be rinsed off with water and degrades in soil within three days.
Researchers at Chalmers University of Technology have developed a groundbreaking microscopy technique that allows for the study of proteins, DNA, and other biological particles in their natural state. This innovation enables earlier detection of promising drug candidates and provides valuable insights into cell communication processes.
Researchers have successfully integrated microcomb-driven silicon photonic systems, increasing data capacity and efficiency in large integrated circuits. The technology, developed by UCSB professor John Bowers and collaborators, enables the creation of high-speed data links with unprecedented scalability.
An international team of researchers has observed a unique 'fruitcake' structure in an organic polymer, revealing variations in hardness at the nanoscale. This discovery could lead to the development of next-generation microelectronic and bioelectronic devices with improved flexibility and biocompatibility.
A new study presents a self-powering smart pillow that tracks head movement during sleep using triboelectric nanogenerators. This system could improve the accuracy of sleep monitoring and have uses beyond tracking sleep, such as monitoring patients with cervical spondylosis or detecting early warning signs for falls.
Researchers at Rice University have developed molecular machines that can kill bacteria using visible light, targeting gram-negative and gram-positive bacteria. The breakthrough study uses rotors spinning at millions of times per second to break up biofilms and persister cells, making these infections more treatable.
Researchers at Osaka Metropolitan University used quantum dots to model the electron scattering Kondo effect in ferrimagnetic substances. The T-shaped lattice arrangement led to a surprising suppression of electrical conductivity, contrary to initial expectations.