Articles tagged with Nanotubes
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A team of researchers at MIT has developed an 'electroadhesive' stamp that can pick up and place down objects as small as 20 nanometers wide. The stamp uses a sparse forest of ceramic-coated carbon nanotubes to create temporary electrical attraction, allowing it to grasp microscopic structures with precise control.
The researchers developed a microfluidic platform to study an artificial light-harvesting complex inspired by photosynthetic bacteria. They found that at low light intensities, the system absorbs photons efficiently, while high intensities trigger the release of excess energy as a safety valve.
The Rice team found that the Janus configuration, with a half-circle of zigzags opposite six armchairs, allows for tight contact with solid catalysts and preserves continuous nanotube growth. This discovery advances understanding of growth mechanisms and has implications for designing efficient catalysts.
Researchers at Swansea University have developed a method to recycle black plastics into carbon nanotubes for use in high-value materials like conductive films and flexible electronics fabrics. This process could reduce plastic waste and help solve the problem of lost electricity during transmission and distribution.
Researchers developed a nanotechnology-based compound that delivers an oral vaccine against hepatitis B to the immune system. The nanostructured silica protects the antigen from digestive acidity, enabling it to trigger an immune response. The study's results show promise for a polyvaccine against six diseases.
Scientists have discovered semiconducting nanotubes with precise cylindrical structures, which can be used as fluorescent markers in medical research or catalysts in photoreduction reactions. The researchers' accidental discovery reveals the spontaneous formation of these nanostructures using metallic nanocrystals and certain ligands.
Researchers have developed a new technique to study dynamic nanomaterials, allowing them to witness their formation and growth in real-time. This breakthrough enables better understanding of metal-organic nanotubes' properties and potential applications.
Researchers discovered a novel nanotube material that generates electricity through the photovoltaic effect, outperforming existing materials by an order of magnitude. This breakthrough could lead to more efficient solar panels and advanced optical sensors for applications in astronomy and self-driving cars.
DNA nanotubes designed by Yi Li and Rebecca Schulman can heal themselves in serum, extending lifetimes from 24 hours to over 96 hours. The researchers developed a self-repair process using smaller DNA tiles that repair damaged structures by replacing or joining to the nanotube ends.
Scientists at Scripps Research have discovered that the Rhes protein creates tunnel-like nanotubes that enable the toxic Huntington's protein to travel between neurons, contributing to brain cell destruction and disease progression. This finding improves understanding of how Huntington's disease attacks certain brain cells.
Researchers found that mechanically stretched carbon nanotubes can extract heat efficiently, making them a promising material for cooling flexible electronic devices. This technology could be an efficient alternative to traditional vapor-compression refrigerators, reducing ozone depletion and global warming.
Physicists at the University of Bath have developed a flexible way to synthesize novel nanomaterials, including Tungsten Disulphide -TMDs. The process allows for tunable materials with potential applications in optics and sensors.
Scientists from Michigan Technological University have successfully created 2D gold quantum dots that can be customized at the atomic level on boron nitride nanotubes. This breakthrough enables the creation of tunable semiconducting materials with potential applications in future electronics and quantum computing.
Researchers at Rice University discovered that PTFE stir bars react with chemicals in an unexpected way, affecting the modification of nanotubes. This discovery highlights the importance of choosing inert materials in laboratory settings.
Researchers at UC Berkeley have developed a new technique that uses carbon nanotubes to deliver genes into plant cells, allowing for non-GMO modifications. The method is highly successful and can be used for gene editing with CRISPR-Cas9, enabling the creation of disease- or drought-resistant crops.
Researchers discovered that most tunneling nanotubes are composed of multiple smaller tubes and have thin wires connecting them, allowing for organelle transport. This discovery challenges the dogma of cells as individual units, showing they can exchange materials without a membrane barrier.
The 'smart skin' technology uses fluorescing carbon nanotubes to reveal stress in aircraft, bridges, or pipelines over entire surfaces or microscopic levels. It enables two-dimensional mapping of accumulated strain that can't be achieved by other non-contact methods.
Scientists have developed a method to construct protein nanotubes from engineered protein crystals, which could accelerate the development of artificial enzymes, nano-sized carriers and delivery systems. The new method, reported in Chemical Science, uses protein crystals as a scaffold for proteins to self-assemble into desired structures.
Researchers have developed a method to modify the structure of carbon nanotubes, changing their conductive properties. By stretching nanotubes, scientists can create semiconducting nanotubes suitable for microprocessors and high-precision detectors.
Rice University engineers discovered that weak van der Waals forces between nanotubes and water molecules can align into a square rod. The research provides valuable insight on ways to leverage atomic interactions for fabricating nanochannels and energy-storing nanocapacitors.
Researchers from Lomonosov MSU and international partners demonstrate a strong light-matter interaction in suspensions and self-assembled films of tungsten disulfide nanotubes. This allows consideration of WS2 nanotubes as a platform for developing new concepts in nanotube-based photonic devices.
The Rice University scientists found that the catalyst starts nanotubes with various chiral angles but redirects almost all of them to the fast-growing variant (12,6). The cause appears to be a Janus-like interface composed of armchair and zigzag segments.
A University of Córdoba research group has developed a method to detect pollutants in seawater at very low concentrations, focusing on parabens and triclosan used as preservatives in personal hygiene products. The new system, Lab-on-Valve, uses carbon-coated titanium dioxide nanotubes for efficient detection.
Boron nitride nanotubes have been enhanced using the Billups-Birch reaction process, allowing for functionalization and modification of their properties. This enables the creation of new composite materials with tunable properties, opening up possibilities for various applications.
Researchers at Cardiff University have developed a new non-toxic method for delivering anti-cancer drugs to specific parts of the body, reducing harsh side effects. The new nanotube delivery method was found to be effective in treating breast cancer, with reduced rates of metastasis and tumour growth.
Scientists at Rice University and Tokyo Metropolitan University developed a novel way to manipulate light at the quantum scale by using single-walled carbon nanotubes as plasmonic quantum confinement fields. The discovery could lead to the development of unique lasers and other optoelectronic devices.
Scientists have created new tiny tubes that can help with water filtration and tissue engineering studies. The tubes are inspired by protein structures called microtubules found in cells and are thousands of times smaller than a human hair.
Scientists at Rice and Swansea universities discovered that removing contaminants from carbon nanotubes enhances their conductivity. Vacuum annealing at high temperatures reduced surface contamination, allowing accurate resistance measurements. This breakthrough could lead to more consistent results in nanoscale devices.
Researchers at the Energy Safety Research Institute discovered that hard-to-remove contaminants like iron catalyst, carbon, and water can skew conductivity test results. Cleaning these contaminants using vacuum annealing or argon ion bombardment can improve measurement accuracy, but may also introduce defects that degrade conductivity.
Researchers at Rice University found that purified carbon nanotubes enhance wheatgrass growth by up to 13% in water solutions. However, contaminated particles can concentrate toxins and hinder plant development. The study highlights the need for understanding nanomaterials as part of a system rather than in isolation.
Researchers at Kyushu University used spectro-electrochemistry to investigate the frequency shifts in infrared fluorescence of modified carbon nanotubes. They found that the gaps between electron energy levels depend on the elements bonded to the exterior of the nanotubes.
Researchers discovered that certain carbon nanotubes can induce mesothelioma in mice, a type of cancer linked to asbestos. The study highlights the potential carcinogenic effects of long and thin carbon nanotubes, emphasizing the need for safer alternatives.
Pillared graphene's thermal transport was found to be faster with wrinkles due to reduced phonon scattering. The optimal configuration involves three octagons instead of six heptagons, facilitating a smoother turn without significantly stressing the graphene.
Researchers successfully created a hybrid WO3-TiO2 nanotubes film using electrochemical anodization, achieving high photocatalytic reduction performance. The film's high specific surface area and geometric surface area factor contribute to enhanced light absorption and charge carrier generation.
Researchers at NASA and Binghamton University developed a new material, boron nitride nanotubes (BNNTs), which can withstand extreme temperatures and stresses, paving the way for faster planes. The study found BNNTs could handle high amounts of stress and were extremely lightweight.
Researchers discovered that carbon nanotubes with a width of 0.8 nanometers can filter water with better efficiency than biological proteins, known as aquaporins. The narrow nanotube porins (nCNTPs) maintain permeability even at high salt concentrations and can be tailored for specific ion selectivity.
Researchers create a packaging film coated with clay nanotubes and antibacterial essential oil to prevent microbial growth and over-ripening. The new technology shows promise in preserving fruits, vegetables, and meats, reducing food waste and economic losses.
Scientists at Lund University produced nanotubes from a single building block using molecular self-recognition, enabling controlled transport of substances like acetylcholine. The discovery could lead to new treatments for Alzheimer's disease.
Researchers have developed a method to select semiconducting carbon nanotubes from a solution and make them self-assemble on gold electrodes, resulting in tiny transistors with nearly 100% purity. The process uses polymers with thiol side chains to bind the tubes to the electrodes.
A new class of enhanced single-walled carbon nanotubes offers a more effective approach to water treatment and remediation, with the potential for regenerating filters by heating them in a microwave. The technology works because nanotubes dislike water, allowing only organic contaminants to stick to them.
Researchers from Aalto University have developed a nanotube film that can replace traditional materials in perovskite solar cells, improving their stability and lifetime. The new material has conductivity as high as possible and can be made transparent and thin, making it suitable for use as the front contact of the cell.
Researchers at Johns Hopkins University successfully created DNA nanotube bridges that connected two molecular landmarks on the surface of a lab dish. This breakthrough could lead to the development of new medical devices and technologies that can communicate directly with cells, potentially revolutionizing the field of nanotechnology.
Researchers at MIT discovered that water can freeze solid even at high temperatures in carbon nanotubes, raising the freezing point by tens of degrees. This unexpected finding may lead to new applications such as ice-filled wires with unique electrical and thermal properties.
Researchers develop a new method to make ultra-lightweight materials for spacecraft and satellites using high-velocity impact. By crushing nanotubes against a target, they produce diamond-like structures with extraordinary mechanical properties, enhancing the resilience of these critical components.
Researchers at Nagoya University have developed a new strategy to synthesize covalent organic nanotubes (ONTs) with high mechanical strength. The 'helix-to-tube' method involves light-induced cross-linking of a helical polymer, resulting in ONTs with desirable functionalities.
α-synuclein aggregates are transported between neurons via lysosomal vesicles in tunneling nanotubes, enabling Parkinson's disease progression. This discovery highlights the role of tunneling nanotubes in intercellular communication and lysosome-mediated protein disposal.
Researchers at NIST develop a prefilling method to enhance the quality and consistency of single-wall carbon nanotubes by introducing a chemical filler. This approach yields superior results in optical applications, such as sensors and photodetectors.
Researchers at Rice University have developed a new cancer-imaging technique that uses carbon nanotubes tagged with antibodies to pinpoint the location of tumors. The technique, known as spectral triangulation, uses non-invasive optical measurements to determine the depth and coordinates of the nanotube beacons in tissue.
Researchers at Rice University have discovered 'Teslaphoresis', a phenomenon where carbon nanotubes self-assemble into long wires using a Tesla coil's force field. The team, led by Paul Cherukuri, reported their results in ACS Nano and demonstrated the ability to assemble and power circuits using the force field.
Biomedical engineering graduate students Renata Minullina and Abhishek Panchal from Louisiana Tech University have developed a novel approach to clean up oil spills using halloysite Pickering emulsification. Their research was selected from over 230 international entrants at the ACS Meeting in San Diego.
Researchers at Rice University have discovered a way to make highly aligned, wafer-scale films of densely packed single-walled carbon nanotubes. The thin films offer possibilities for making flexible electronic and photonic devices, such as bendable computer chips.
Berkeley Lab scientists discover a family of nature-inspired polymers that spontaneously assemble into hollow crystalline nanotubes in water. The nanotubes have uniform diameters and can be tuned for specific functions, opening up new possibilities for filtration, desalination, and more.
African trypanosomes use nanotubes to sense their environment and respond to it, as well as release extracellular vesicles that can cause anemia in humans. The discovery could lead to improved therapies for sleeping sickness, a disease fatal if left untreated and threatening millions of people annually.
A Louisiana Tech University senior has co-authored a paper on using halloysite clay nanotubes to create an antimicrobial coating that could help fight superbugs. The research was published in the prestigious journal Biomacromolecules, highlighting the potential for natural materials in biomedical technology.
Scientists at Rice University and Montreal Polytechnic designed computer simulations to investigate the electromagnetic properties of graphene-boron nitride hybrids. The researchers found that these hybrid materials exhibit both electronic and magnetic properties, which could be useful in spintronic and nano-transistor applications.
Scientists developed an imaging method to measure single-walled carbon nanotube quantum capacitance, a unique property of these materials. The technique allows sub-wavelength spatial resolution and enables optimization of processing strategies, shedding light on the quantum properties of nanotubes.
Researchers at Binghamton University have discovered a material with superior mechanical properties that could be used in fighter planes and spacecraft. The boron nitride nanotubes exhibit stronger interfaces with polymers, enabling the creation of lighter yet more fuel-efficient aircraft and space shuttles.
Researchers at Michigan Technological University developed a new method to clean contaminated water full of unwanted nanomaterials by shaking oil and water, clearing out nearly 100% of one-dimensional nanomaterials. The technique uses the physical properties of oil and water to trap nanomaterials, which can then be easily removed.
Scientists developed a simple method to quickly detect meat spoilage using nanotubes, providing real-time analysis and high sensitivity. The test reacts in under an hour to a teaspoon of vapor emitted by the samples, indicating freshness.
Researchers at Rice University have developed a new method for analyzing carbon nanotubes in solution using variance spectroscopy. This technique allows for the rapid analysis of small regions in dilute nanotube solutions, providing insights into the types, numbers, and properties of nanoparticles in the solution. By zooming in on thes...