The images leave no one cold: giant vortices of floating plastic trash in the world's oceans with sometimes devastating consequences for their inhabitants – the sobering legacy of our modern lifestyle. Weathering and degradation processes produce countless tiny particles that can now be detected in virtually all ecosystems. But how dangerous are the smallest of them, so-called nanoplastics? Are they a ticking time bomb, as alarming media reports suggest? In the latest issue of the journal Nature Nanotechnology, a team from Empa and ETH Zurich examines the state of current knowledge – or lack thereof – and points out how these important questions should be addressed.
Bowel cancer is the second deadliest cancer in the world, killing almost 900,000 people in 2020. New research from Indian and Australian scientists suggests that nanotechnology could provide a more effective treatment option than conventional therapy.
Removing pathogens from drinking water is especially difficult when the germs are too tiny to be caught by conventional filters. Researchers at Empa and Eawag are developing new materials and processes to free water from pathogenic microorganisms such as viruses.
Scientists have found a way to turn X-ray fluorescence into an ultra-high position-sensitive probe to measure nanostructures in thin films. The fluorescence reveals the evolution of nanostructures in real time with nearly atomic-level resolution, something no other technique has achieved. This allows scientists to watch nanostructures in thin films evolve with unprecedented precision and design thin films for new applications.
The Halal Science Center, Chulalongkorn University, would like to invite all to join the virtual conference, International Halal Science and Technology Conference (IHSATEC) 2020-2021 and 14th Halal Science Industry and Business (HASIB), on June 1-2, 2021. The conference will be carried out via Zoom from 9.00 – 16.00 hrs. (GMT+7 Bangkok time zone). All participants are to submit articles for the oral or poster presentations for the academic session of Thailand’s Halal Assembly 2021 before May 1, 2021.
In a new study published in Proceedings of the National Academy of Sciences, Florida State University researchers managed to visualize the vortex tubes in a quantum fluid, findings that could help researchers better understand turbulence in quantum fluids and beyond.
Scientists from Argonne National Laboratory, Northwestern University and the University of Florida report a breakthrough involving a material called borophane, a sheet of boron and hydrogen a mere two atoms in thickness.
Emerging technologies can screen for cervical cancer better than Pap smears and, if widely used, could save lives in areas where access to health care may be limited. In Biophysics Reviews, scientists at Massachusetts General Hospital write advances in nanotechnology and computer learning are among the technologies helping develop HPV screening that take the guesswork out of the precancer tests. That could mean better screening in places that lack highly trained doctors and advanced laboratories.
Researchers developed a new method to synthesize and screen libraries of peptoid nanostructures. This enables researchers to design structures that can target bacteria and other microorganisms that can cause disease. It is the first rapid method for synthesizing and discovering compounds that can act like antibodies.
At Berkeley Lab’s Molecular Foundry, scientists recruited a world-leading microscope to capture atomic-resolution, high-speed images of gold atoms self-organizing, falling apart, and then reorganizing many times before settling into a stable, ordered crystal.
Scientists report a novel noninvasive treatment for brain disorders based on breakthroughs in both optics and genetics. It involves stimulation of neurons by means of radioluminescent nanoparticles injected into the brain and exposed to X-rays.
Scientists have devised a new way to build nanomaterials that can maintain their structural integrity and functionality in ways relevant to drug delivery. The team developed a class of molecular coatings compatible with biological environments. They used these coating to stabilize wireframed DNA origami cages that can carry an anticancer drug with a slower release of the medicine over time than possible with noncoated counterparts.
Researchers reporting in ACS’ Nano Letters have transformed copper nanowires into metal foams that could be used in facemasks and air filtration systems. The foams filter efficiently, decontaminate easily for reuse and are recyclable.
Columbia Engineering researchers, working with Brookhaven National Laboratory, report today that they have built designed nanoparticle-based 3D materials that can withstand a vacuum, high temperatures, high pressure, and high radiation. This new fabrication process results in robust and fully engineered nanoscale frameworks that not only can accommodate a variety of functional nanoparticle types but also can be quickly processed with conventional nanofabrication methods.
Neural network training could one day require less computing power and hardware, thanks to a new nanodevice that can run neural network computations using 100 to 1000 times less energy and area than existing CMOS-based hardware.
In a first, three Israeli satellites will be launched simultaneously on March 20. The Adelis-SAMSON project from the Technion involves three autonomous nanosatellites that will fly in formation and monitor Earth from space.
During the dry season this year, Bangkok residents have faced the saltiest tap water problem in 20 years as a result of global warming and seawater rise. Chulalongkorn engineers predict the problem to persist until May and have proposed solutions with desalination technology.
Cornell University researchers have created micron-sized shape memory actuators that enable atomically thin two-dimensional materials to fold themselves into 3D configurations. All they require is a quick jolt of voltage. And once the material is bent, it holds its shape – even after the voltage is removed.
The electron is one of the fundamental particles in nature we read about in school. Its behavior holds clues to new ways to store digital data. A new study explores alternative materials to improve capacity and shrink the size of digital data storage technologies. Specifically, the Michigan Tech team found that chromium-doped nanowires with a germanium core and silicon shell can be an antiferromagnetic semiconductor.
Irvine, Calif., March 11, 2021 – Catastrophic collapse of materials and structures is the inevitable consequence of a chain reaction of locally confined damage – from solid ceramics that snap after the development of a small crack to metal space trusses that give way after the warping of a single strut. In a study published this week in Advanced Materials, engineers at the University of California, Irvine and the Georgia Institute of Technology describe the creation of a new class of mechanical metamaterials that delocalize deformations to prevent failure.
Columbia Engineering researchers report that they developed a new, efficient way to modulate and enhance an important type of nonlinear optical process: optical second harmonic generation—where two input photons are combined in the material to produce one photon with twice the energy—from hexagonal boron nitride through micromechanical rotation and multilayer stacking. Their work is the first to exploit the dynamically tunable symmetry of 2D materials for nonlinear optical applications.
COSMIC, a multipurpose X-ray instrument at Berkeley Lab’s Advanced Light Source, has made headway in the scientific community since its launch less than 2 years ago, with groundbreaking contributions in fields ranging from batteries to biominerals.
Researchers have developed an insight that could facilitate production of microscopic carbon nanotubes, structures thousands of times thinner than a human hair used in everything from microchips to sporting goods to pharmaceutical products.
Scientists developed a highly efficient, targeted method for delivering gene editing machinery to specific tissues and organs, demonstrating the treatment of high cholesterol by targeting genes in the liver of mice, reducing cholesterol for over 3 months (and potentially more) with one treatment
A team of researchers from Finland and Germany have found a way to study the endonuclease-driven digestion of drug-loaded DNA nanostructures in real time. As the team investigated the binding of anti-cancer drug doxorubicin (Dox) to the DNA structures in great detail, they discovered that the majority of previous studies have vastly overestimated the Dox loading capacity of DNA origami.
COVID-19 can be diagnosed in 55 minutes or less with the help of programmed magnetic nanobeads and a diagnostic tool that plugs into an off-the-shelf cell phone, according to Rice University engineers.
Berkeley Lab scientists have captured real-time, high-resolution videos of liquid structures taking shape as nanoparticles form a solid-like layer at the interface between oil and water. Their findings could help advance all-liquid robotics for targeted cancer drug delivery and other applications.
The National Institutes of Health (NIH) has awarded a $2.1 million, four-year research grant to Anirban Sen Gupta at Case Western Reserve University in Cleveland, Ohio, and collaborators at the University of Michigan and University of North Carolina, to advance the design of artificial platelets that can promote and stabilize clots to stop bleeding.
Advances in the fields of biomaterials and nanotechnology could lead to big breakthroughs in the fight against dangerous viruses like the novel coronavirus that causes COVID-19. In APL Bioengineering, researchers from the Indian Institute of Science describe possibilities being explored by scientists, combining biomaterials and nanotechnology, to make vaccines more effective and build surfaces that could fight and kill viruses on their own.