A new synthesized chemical compound demonstrates how introducing diradical systems can alter the properties of carbon nanotubes, including spin states and aromaticity. The findings show smaller singlet state systems exhibit in-plane aromaticity and stability.
Researchers at MIT have discovered a new way of generating electricity using tiny carbon particles that can create a current simply by interacting with liquid surrounding them. This technology allows for electrochemistry without wires, enabling applications such as powering micro- or nanoscale robots and driving chemical reactions.
Historical carbon emissions from cultivated northern peatlands are estimated to be around 72 billion tons over 850-2010. The study reveals that only about half of the emitted carbon was compensated by natural peatland carbon absorption.
Scientists have developed a way to engineer materials at the atomic level using a dry transfer technique. The method uses anthracene as a sacrificial material to precisely position carbon nanotubes, resulting in bright photoluminescence up to 5,000 times brighter than the original molecule.
Researchers at Stanford University have developed a new method to harness waste heat from wearables using nanotube-based thermoelectric generation. This technology converts uneven heat distribution into electrical energy, reducing the need for batteries and making wearable devices more sustainable.
Researchers have developed a new separation method using chemically modified cotton wool to separate single-wall carbon nanotubes (SWCNTs) into metallic and semiconducting specimens. The method achieves high efficiency and scalability, making it suitable for industrial applications.
Researchers at Heidelberg University have created a new reaction pathway to enable the controlled creation of specific optically active defects in carbon nanotubes. These defects emit light in the near-infrared and show single-photon emission, paving the way for applications in quantum cryptography and biological imaging.
A new study finds that restoring Louisiana's coastal marshes can store significant amounts of carbon in the soil, potentially altering the global carbon budget. The study examined 24 sites across four marsh habitats and found that protecting these areas is vital to preserving carbon stored in the soils.
Scientists at Japan's National Institutes of Natural Sciences have successfully synthesized zigzag nanotubes using a novel method. This breakthrough enables the controlled production of all three types of nanotubes: armchair, chiral, and zigzag.
A new study by researchers at Woods Hole Oceanographic Institution found that the biospheric carbon turnover within river basins is vulnerable to future temperature and precipitation perturbations from a changing climate. This suggests that soil organic carbon sensitivity to climate change may be more widespread than previously assumed.
A new study published in Global Biogeochemical Cycles provides estimates of the elusive component of the global carbon cycle. The researchers used two stable carbon isotopes to track carbon through different components of the cycle, finding much higher numbers for land-to-ocean carbon transfer
Carbon nanotubes have been engineered to produce moiré patterns, which could enhance material properties. The researchers' breakthrough has significant implications for the development of superconducting materials with improved performance.
Rice University's Carbon Hub has awarded seed grants to six research projects aiming to transform the oil and gas sector into a leading provider of clean hydrogen energy and solid carbon products. The selected teams will investigate various applications, including cement reinforced with carbon fibers, urban smog reduction, and replacin...
Researchers developed a way to measure levels of specific carbon nanotubes in plant tissues using programmed thermal analysis. This method can detect small amounts of carbon nanotubes in leaves, stems, and roots, providing crucial insights into their environmental fate and potential human exposure.
Researchers at Umeå University have quantified carbon emissions from rivers and lakes in Western Siberia, finding that emission rates are high and exceed carbon export to the Arctic Ocean. The study highlights the importance of inland waters in the global carbon cycle and climate system.
Researchers at Toyohashi University of Technology developed a low-cost method for intracellular delivery using titanium-oxide nanotubes and nanosecond pulse lasers. The study successfully delivered propidium iodide and fluorescent dextran into HeLa cells with high efficiency and cell viability.
Researchers at Rice University developed a computational model to fine-tune carbon nanotube fiber properties for aerospace, automotive and medical applications. The study reveals that longer nanotubes and increased crosslinks can strengthen fibers by reducing friction.
Christian A. Davies, Ph.D., has been awarded the 2021 Edith and Peter O'Donnell Award in Technology Innovation from TAMEST for his development of alternative carbon management technologies that reduce emissions. His work focuses on combining DNA sequencing techniques with net carbon flux to analyze microbes in soil.
Researchers at Hunan University and Clemson University have developed a new type of electrode material inspired by biological cells. The material, called biomimetic carbon cells, improves the cycling stability of potassium-ion batteries and allows for longer continuous operation.
Researchers at Swansea University have developed a faster, greener way to produce porous carbon spheres, which are crucial for carbon capture technology and renewable energy storage. The new method produces spheres with high carbon capture capacity and works effectively at large scales.
Researchers at Aalto University have created a colour atlas for 466 unique varieties of single-walled carbon nanotubes, revealing their potential applications in electronics and solar panels. The study developed a quantitative model to predict the specific colors of thin films made by combining any of the 466 varieties.
Scientists have developed a method to predict the specific colors of thin films made from combining any of the 466 varieties of single-walled carbon nanotubes. The research shows that the thinnest and most colorful tubes affect visible light more than those with larger diameters and faded colors.
Researchers Marco Fielder and Arun Nair found that water and mineral content variations significantly impact collagen fibril behavior, leading to bio-composites with improved mechanical stability. Composites with 40% mineralization were twice as strong as those without minerals, regardless of water content.
Rice University scientists have discovered a novel phenomenon in carbon nanotubes, where a delayed secondary fluorescence is emitted when triggered by a multistep process involving dye molecules and dissolved oxygen. The delay, only microseconds long, can be detected with specialized instrumentation.
Researchers at Skoltech have discovered a way to increase the productivity of carbon nanotube synthesis by adjusting catalyst injection rates, leading to a 9-fold increase in yield while preserving key properties. This breakthrough has the potential to pave the way for cheaper and more accessible nanotube-based technology.
Scientists at Swansea University have developed a way to extract carbon atoms from waste plastics and turn them into carbon nanotube format for transmitting electricity. The project aims to create long-range electricity transmission materials from waste plastics, advancing global energy sustainability.
The study found that titanate nanotubes (TNTs) composites exhibit superior photocatalytic performance in generating hydrogen from formic acid, outperforming titanium dioxide (TiO2). The high surface area of TNTs enables improved adsorption and interaction with platinum, leading to enhanced selectivity and efficiency.
Researchers have developed a form of gold nanotubes that can target and kill mesothelioma cancer cells using light. The nanotubes are made in a two-step process and have physical properties that can be tailored for enhanced therapies.
A new study found that ocean carbon sequestration decreased as phytoplankton failed to devour macronutrients and trap carbon dioxide in the deep ocean. This process, called the biological pump, transfers carbon dioxide from the atmosphere and surface ocean into the dark, deep ocean.
Physicists discovered that individual light-harvesting nanotubes with disordered molecular structures transport light energy in the same way. The result is attributed to the linkage of molecules, which averages out small differences, resulting in similar optical properties.
Scientists have successfully reconnected damaged neuronal networks in spinal cord injuries using carbon nanotube sponges. The breakthrough enables functional results, with animals regaining mobility in affected limbs. Further research is needed to explore the material's properties and conditions for implantation.
A new study by SISSA and the University of Trieste shows that carbon nanotube implants can restore motor functions in animals with spinal injuries. The research reveals nerve fibre regrowth and promotes recovery through mechanical and electric properties of regenerative scaffolds.
A University of Alberta PhD student has shed new light on the Earth's carbon cycle using diamonds as breadcrumbs. The study proposes a model where 'superdeep' diamonds crystallize from carbon-rich magmas, which may be critical for their growth.
Scientists have developed peptide-based nanotubes that can be used to create efficient energy harvesting systems. By controlling the alignment of the tubes and incorporating graphene oxide, they improved conductivity and increased current output.
Researchers have developed efficient photocatalysts that can clean surfaces, sterilize medical instruments, and purify water under visible radiation. The new catalysts use natural aluminosilicate nanotubes with cadmium sulfide quantum dots, showing promise for environmental applications.
Researchers at Rice University have developed carbon nanotube fibers that are stronger than Kevlar and conductive like copper. The fibers have doubled in strength and conductivity every three years, a trend spanning nearly two decades.
Scientists at the CRCHUM found that pericytes use tunneling nanotubes to communicate with each other, regulating blood supply and maintaining vision. The study's findings suggest that damaged tunnelling nanotubes may contribute to neurodegenerative diseases like stroke, glaucoma, and Alzheimer's.
A new study by Texas A&M University researchers demonstrates the use of cellulose nanocrystals to uniformly coat carbon nanotubes on carbon-fiber composites, resulting in increased strength and resistance. This innovative method enables the design of stronger, more efficient composite materials from the nanoscale.
A team of researchers at the University of Johannesburg has developed a natural fibre-reinforced polymer hybrid nanocomposite material using plantain fibers and carbon nanotubes. The resulting composite exhibits improved tensile and flexural strength compared to epoxy resin alone.
Scientists propose new soil carbon-persistence models to effectively draw down atmospheric carbon dioxide. The models focus on the interplay between time and space in soil carbon's changing molecular structure.
A new study has provided the first global 'bottom-up' terrestrial carbon budget, estimating a net sink of -2.2 ± 0.6 Pg C y-1 between 2000 and 2009. The study reveals that a significant portion of carbon fixed in terrestrial ecosystems is lost through fires, emissions, and export to rivers, rather than being retained in the soil.
A new study by North Carolina State University researchers found a flexible material made of tiny carbon nanotubes that can heat or cool the wearer on demand. The material has a combination of thermal, electrical, and physical properties that make it an appealing candidate for next-generation smart fabrics.
New research reveals that Arctic shrub communities can release stored carbon from soils, offsetting potential carbon sequestration. This could lead to a net source of CO2 in the atmosphere if not addressed.
Researchers synthesized Nb2O5 nanotubes on carbon cloth via a simple hydrothermal process, achieving high reversible capacity of 175 mAh/g and energy density of 195 Wh/kg. The material shows good conductivity, reduced volume expansion, and flexible operation conditions.
A University of Michigan study found that organic carbon in thawing permafrost soils can be converted to carbon dioxide by sunlight, known as photomineralization. This process could contribute an additional 14% of carbon dioxide into the atmosphere, increasing global warming by 0.3-0.4°C.
A Kazan University research team has developed a novel nanoformulation using biocompatible halloysite nanotubes and bacterial pigment prodigiosin, which selectively disrupts cancer cells without harming healthy ones.
A new study suggests that the ocean's ability to absorb carbon dioxide will slow down as global emissions decrease, due to the slowed growth rate of atmospheric CO2. This could lead to a decrease in ocean carbon uptake and an increase in atmospheric CO2, contributing to additional warming.
Research reveals that rivers play a crucial role in transporting burned carbon from wildfires and managed burning to oceans, where it can be stored for tens of millennia. The study estimates that 18 million tonnes of dissolved burned carbon are transported annually by rivers.
Researchers isolated single BNNTs using a fluorescent rhodamine surfactant, allowing them to track their movement and confirm Brownian motion matches predictions. This study helps understand particle behavior in liquids and could lead to the development of novel composite materials and biomedical applications.
Researchers at Shinshu University have developed a method to selectively dope boron into the outer tubes of double-walled carbon nanotubes, increasing electrical conductivity and Seebeck coefficient. This advancement enables highly enhanced thermoelectric performance in boron-doped DWNTs for waste heat harvesting and other applications.
Researchers from Osaka University and collaborators uncover quasiparticle interactions in CNTs using terahertz radiation. They identify two key mechanisms explaining data, shedding light on ultrafast electrical conduction and advancing optoelectronic devices.
Researchers at the University of Eastern Finland developed a hybrid material combining mesoporous silicon microparticles and carbon nanotubes to improve silicon's performance in Li-ion batteries. The material was produced from barley husk ash, reducing its carbon footprint.
Researchers at Rice University have discovered that double-walled carbon nanotubes can create a staggered band alignment, allowing for more efficient separation of positive and negative charges in photovoltaic applications. This effect is caused by the interplay of different curvatures between the inner and outer walls of the nanotube.
A novel technology using salt crystals allows easy observation of carbon nanotubes under room temperature, revealing their shape and position changes. The coating also enables the amplification of optical signals up to hundreds of times, facilitating the detection of molecules on the surface of CNTs.
Researchers found that the alignment of nanotubes in 2D films corresponds to parallel, submicroscopic grooves on the paper. The grooves likely form during the factory production process, and removing them allows for control over alignment direction.
A study tracking 300,000 trees over 30 years reveals that tropical forests' carbon sink is weakening, with a feared switch from absorption to emission imminent. The loss of this critical carbon sink capacity is equivalent to a decade of fossil fuel emissions from major countries.
Researchers at the Beckman Institute developed a technique to create chemically cross-linked carbon-nanotube-based fibers, significantly improving their electrical and mechanical properties. This breakthrough enables the creation of high-performance supercapacitors with potential applications in fields like aerospace.
A new blood test uses a carbon nanotube-based sensor to detect Alzheimer's disease with high accuracy, measuring key biomarkers in human plasma. The test achieved an average sensitivity of 90.0% and selectivity of 90.0%, outperforming conventional biosensors.
Researchers successfully grow crystals of various materials onto the surface of carbon nanotubes, paving the way for unique properties in 1D vdWs. This breakthrough enables potential applications in flexible electronics, lasers, solar energy conversion, and more.
Researchers have developed novel nanocomposites of DNA, silica particles, and carbon nanotubes that can be tailored to various applications. These composites enable the creation of environments suitable for human stem cells to settle down and develop further.