Current Atomic Force Microscopy News and Events

Current Atomic Force Microscopy News and Events, Atomic Force Microscopy News Articles.
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Polymer film protects from electromagnetic radiation, signal interference
In a breakthrough report published in Advanced Materials engineers at the University of California, Riverside describe a flexible film using a quasi-one-dimensional nanomaterial filler that combines excellent electromagnetic shielding with ease of manufacture. (2021-02-22)

Big galaxies steal star-forming gas from their smaller neighbours
In research published today, astronomers have discovered that large galaxies are stealing the material that their smaller counterparts need to form new stars. (2021-02-22)

Atomic nuclei in the quantum swing
The extremely precise control of nuclear excitations opens up possibilities of ultra-precise atomic clocks and powerful nuclear batteries. (2021-02-19)

Life of a pure Martian design
Experimental microbially assisted chemolithotrophy provides an opportunity to trace the putative bioalteration processes of the Martian crust. A study on the Noachian Martian breccia Northwest Africa (NWA) 7034 composed of ancient crustal materials from Mars, led by ERC grantee Tetyana Milojevic from the Faculty of Chemistry of the University of Vienna, now delivered a unique prototype of microbial life experimentally designed on a real Martian material. (2021-02-19)

3D biopsies to better understand brain tumors
Researchers at the Institut de Neurociències of the Universitat Autònoma de Barcelona (INc-UAB) obtained a highly accurate recreation of human glioblastoma's features using a novel 3D microscopy analysis. The study, published in the journal Acta Neuropathologica Communications, provides new information to help with the diagnose, by finding therapeutical targets and designing immunotherapeutical strategies. (2021-02-19)

A new piece of the HIV infection puzzle explored
Researchers from the European Molecular Biology Laboratory and Heidelberg University Hospital combine high-resolution imaging to observe the infection process in cell nuclei, opening the door for new therapeutics. (2021-02-18)

Investigating the wave properties of matter with vibrating molecules
The working group led by Prof. Stephan Schiller, Ph.D. from Heinrich Heine University Düsseldorf (HHU) has used a novel, high-precision laser spectroscopic experiment to measure the internal vibration of the simplest molecule. This allowed the researchers to investigate the wave character of the motion of atomic nuclei with unprecedented accuracy. They present their findings in the current edition of Nature Physics. (2021-02-18)

Tuning electrode surfaces to optimize solar fuel production
Scientists discovered that changing the topmost layer of atoms on electrode surfaces can impact the activity of splitting water into oxygen and hydrogen--a clean fuel. (2021-02-18)

A 'twisted elevator' could be key to understanding neurological diseases
For the first time, researchers have found one of the most important molecular machines in our cells uses a 'twisting elevator' mechanism, solving a mystery of how it transports crucial chemical signals from one cell to another. (2021-02-17)

3D microscopy clarifies understanding of body's immune response to obesity
Researchers who focus on fat know that some adipose tissue is more prone to inflammation-related comorbidities than others, but the reasons why are not well understood. Thanks to a new analytical technique, scientists are getting a clearer view of the microenvironments found within adipose tissue associated with obesity. This advance may illuminate why some adipose tissues are more prone to inflammation - leading to diseases like type 2 diabetes, cancer and cardiovascular disorders - and help direct future drug therapies to treat obesity. (2021-02-17)

Harnessing socially-distant molecular interactions for future computing
Could long-distance interactions between individual molecules forge a new way to compute? A new study of electronic states induced by interactions between individual molecules has potential future application in computers where the state of each individual molecule could be controlled, mirroring binary operation of transistors in current computing. (2021-02-16)

New microscopy analysis allows discovery of central adhesion complex
Researchers at University of Münster and the Max Planck Institute of Biochemistry have developed a method for determining the arrangement and density of individual proteins in cells. In this way, they were able to prove the existence of an adhesion complex consisting of three proteins. (2021-02-15)

Dual character of excitons in the ultrafast regime: atomic-like or solid-like?
Researchers at Politecnico di Milano in collaboration with the Institute of Photonics and Nanotechnologies IFN-CNR and a theory group from the Tsukuba University (Japan) and the Max Plank Institute for the Structure and Dynamics of matter (Hamburg, Germany), have discovered that an exciton can simultaneously adopt two radically different characters when it isstimulated by light. (2021-02-15)

Kagome graphene promises exciting properties
For the first time, physicists from the University of Basel have produced a graphene compound consisting of carbon atoms and a small number of nitrogen atoms in a regular grid of hexagons and triangles. This honeycomb-structured ''kagome lattice'' behaves as a semiconductor and may also have unusual electrical properties. In the future, it could potentially be used in electronic sensors or quantum computers. (2021-02-15)

Move over heavy goggles, here come the ultra-high refractive index lenses
POSTECH professor Junsuk Rho's research team develops a transparent silicon without visible light loss by controlling the silicon atomic structure. (2021-02-14)

Scientists manipulate magnets at the atomic scale
Fast and energy-efficient future data processing technologies are on the horizon after an international team of scientists successfully manipulated magnets at the atomic level. Physicist Dr Rostislav Mikhaylovskiy from Lancaster University said: ''With stalling efficiency trends of current technology, new scientific approaches are especially valuable. Our discovery of the atomically-driven ultrafast control of magnetism opens broad avenues for fast and energy-efficient future data processing technologies essential to keep up with our data hunger.'' (2021-02-12)

Vibrating 2D materials
Two-dimensional materials hold out hope for many technical applications. An international research team now has determined for the first time how strongly 2D materials vibrate when electronically excited with light. (2021-02-11)

Swirlonic super particles baffle physicists
We report a novel state of active matter--a swirlonic state. It is comprised of swirlons, formed by groups of active particles orbiting their common center of mass. (2021-02-11)

Big data reveal threats to minorities policed by white and male officers
Using a dataset on daily patrols and enforcement activities of officers in the Chicago Police Department (CPD) - an agency that has undergone substantial diversification in recent decades - researchers report Black officers used force less often than white officers during the three-year period studied, and women used force less often than men. (2021-02-11)

Metabolism: Researchers first to shed light on structure of huge enzyme complex
A new method has enabled the natural structure of particularly large and complex enzymes to be revealed. Scientists at Martin Luther University Halle-Wittenberg (MLU) and TU Berlin have published their findings in the journal Cell Reports. They investigated a multi-enzyme complex that plays an essential role in metabolism and have discovered that it functions differently than previously thought. This will help scientists better understand certain diseases. (2021-02-10)

Study reveals platinum's role in clean fuel conversion
Scientists at the US Department of Energy's Brookhaven National Laboratory, Stony Brook University (SBU), and other collaborating institutions have uncovered dynamic, atomic-level details of how an important platinum-based catalyst works in the water gas shift reaction. The experiments provide definitive evidence that only certain platinum atoms play an important role in the chemical conversion, and could therefore guide the design of catalysts that use less of this precious metal. (2021-02-10)

Scientists suggested using non-symmetrical magnets for target drug delivery
A team of scientists from Immanuel Kant Baltic Federal University and the University of Genoa suggested combining permanent magnets of different shapes to target magnetic particles with drugs at the organs of lab mice. Such a combination secured a magnetic driving force that was ten times stronger compared to regular cylindrical magnets. (2021-02-09)

Two-phase material with surprising properties
Some materials can couple electrical and mechanical properties - this can lead to astonishing effects: New materials have been developed, consisting of both crystalline and amorphous regions. In these special polymers, the electro-mechanical coupling suddenly disappers - scientits at TU Wien have found out how. (2021-02-08)

Tiny sensor technique reveals cellular forces involved in tissue generation
A team of Brown University researchers developed a technique that uses tiny polymer spheres to sense the forces at play as body tissue forms and grows. (2021-02-05)

New microscopy concept enters into force
The first demonstration of an approach that inverts the standard paradigm of scanning probe microscopy raises the prospect of force sensing at the fundamental limit. (2021-02-05)

How metal atoms can arrange themselves on an insulator
In order to produce tiny electronic memories or sensors in future, it is essential to be able to arrange individual metal atoms on an insulating layer. Scientists at Bielefeld University's Faculty of Chemistry have now demonstrated that this is possible at room temperature: molecules of the metal-containing compound molybdenum acetate form an ordered structure on the insulator calcite without jumping to other positions or rotating. Their findings have been presented in the Nature Communications journal. (2021-02-04)

SARS-CoV-2 under the helium ion microscope for the first time
Scientists at Bielefeld University's Faculty of Physics have succeeded for the first time in imaging the SARS-CoV-2 coronavirus with a helium ion microscope. In contrast to the more conventional electron microscopy, the samples do not need a thin metal coating in helium ion microscopy. This allows interactions between the coronaviruses and their host cell to be observed particularly clearly. The findings have been published in the Beilstein Journal of Nanotechnology. (2021-02-04)

Imaging technique provides link to innovative products
A study led by University of Georgia researchers announces the successful use of a new nanoimaging technique that will allow researchers to test and identify two-dimensional materials (2021-02-04)

Tiny 3D structures enhance solar cell efficiency
A new method for constructing special solar cells could significantly increase their efficiency. Not only are the cells made up of thin layers, they also consist of specifically arranged nanoblocks. This has been shown in a new study by an international research team led by the Martin Luther University Halle-Wittenberg (MLU), which was published in the scientific journal ''Nano Letters''. (2021-02-02)

USPSTF recommends against screening for asymptomatic carotid artery stenosis in general population
The U.S. Preventive Services Task Force (USPSTF) recommends against screening for asymptomatic carotid artery stenosis in the general adult population. Carotid artery stenosis is the narrowing of arteries that supply blood to the brain. This recommendation applies to adults without a history of transient ischemic attack, stroke or other neurologic signs or symptoms related to the carotid arteries. (2021-02-02)

Snake micro scales reveal secrets of sidewinding and slithering
The mesmerizing flow of a sidewinder moving obliquely across desert sands has captivated biologists for centuries and has been variously studied over the years, but questions remained about how the snakes produce their unique motion. (2021-02-02)

A show of force: Novel polymer that toughens up and changes color upon mechanical stress
Scientists at Tokyo Institute of Technology (Tokyo Tech) developed a polymer whose properties change markedly after being exposed to mechanical stress. In bulk form, the mechano-responsive polymer shows color changing, fluorescence, and self-strengthening abilities even under simple compression or extension. These fundamental findings are unprecedented in the field of mechanochemistry and could pave the way for numerous applications in materials science. (2021-02-02)

Solving complex physics problems at lightning speed
A calculation so complex that it takes twenty years to complete on a powerful desktop computer can now be done in one hour on a regular laptop. Physicist Andreas Ekström at Chalmers University of Technology, together with international research colleagues, has designed a new method to calculate the properties of atomic nuclei incredibly quickly. (2021-02-01)

Supersaturation: The barrier between protein folding and misfolding
It's commonly accepted that protein folding/misfolding are alternative reactions of unfolded proteins but the principles governing this remain unknown. Here, researchers from Osaka University describe a general concept that links protein folding and misfolding: protein folding and amyloid formation are separated by the supersaturation barrier of a denatured protein. Breakdown of this supersaturation barrier is required to shift the protein to the amyloid pathway, linking Anfinsen's intramolecular folding universe with the ''outer'' intermolecular misfolding universe. (2021-02-01)

Skoltech imaging resources used in international experiment with new photocatalysts
Skoltech researchers helped their colleagues from Japan, Germany, the United States, and China study the crystal structure and optical properties of a new class of two-dimensional compounds, which can be used as effective visible-light-responsive photocatalysts for energy and chemical conversion. They used the Advanced Imaging Core Facility equipment for imaging and structural analysis. (2021-02-01)

Paving the way for effective field theories
This special issue, published in EPJ A, presents a coherent collection of work by theoretical experts from around the world regarding the use of effective field theories. Several unanswered questions are addressed and clarified, leading to detailed assessments of the philosophical foundations of effective field theories. (2021-02-01)

Physics of snakeskin sheds light on sidewinding
Sidewinders' bellies are studded with tiny pits and have few, if any, of the tiny spikes found on the bellies of other snakes. The discovery includes a mathematical model linking these distinct structures to function. (2021-02-01)

High-speed holographic fluorescence microscopy system with submicron resolution
The National Institute of Information and Communications Technology (NICT), Tohoku University, Toin University of Yokohama, and Japan Science and Technology Agency (JST) have succeeded in developing a scanless high-speed holographic fluorescence microscopy system with submicron resolution for a 3D space. The system is based on digital holography. The developed microscopy system has an algorithm to acquire 3D information of fluorescent objects toward scanless 3D measurement in less than 1 millisecond. (2021-01-29)

Singles or pairs in cancer cells
An important receptor on the surface of cancer and immune cells prefers to remain noncommittal; sometimes it is present as a single, sometimes as a pair. This was first shown by an MDC team in the journal PNAS, and will decisively advance the development of new medications. (2021-01-29)

Dewdrops on a spiderweb reveal the physics behind cell structures
Researchers in the laboratories of Princeton University scientists Joshua Shaevitz, Howard Stone, and Sabine Petry have discovered that surface tension drives the liquid-like protein TPX2 to form globules that nucleate the formation of branching microtubules during cell division. The paper detailing these discoveries appeared in the Jan 28 issue of the journal Nature Physics. (2021-01-29)

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