Scanning Probe Methods
Articles tagged with Scanning Probe Methods
Coffee as a staining agent substitute in electron microscopy
A team at Graz University of Technology found that espresso is a favourable and environmentally friendly substitute for uranyl acetate, which is highly toxic and radioactive. The results showed equally good quality images under the microscope with coffee staining.
Characterization of few-cycle pulses tunable across the vacuum ultraviolet
Scientists at Max Born Institute develop technique to generate µJ-level tunable few-fs UV pulses in VUV range. They successfully characterized few-fs pulses tuned between 160 and 190 nm using electron FROG, revealing pulse duration of 2-3 fs.
New microscope reveals heat flow in materials for green energy
Scientists have developed a new microscope that accurately measures directional heat flow in materials. This advancement can lead to better designs for electronic devices and energy systems, with potential applications in faster computers, more efficient solar panels, and batteries.
Purdue researchers create orientation-independent magnetic field-sensing nanotube spin qubits
Researchers developed boron nitride nanotubes with spin qubits, more sensitive to off-axis magnetic fields than diamond tips. The technology has applications in quantum sensing, semiconductor industry, and nanoscale MRI.
Single atoms show their true color
Physicists at Michigan State University have developed a new approach that combines high-resolution microscopy with ultrafast lasers to detect misfit atoms in semiconductors. The technique enables researchers to spot defects with unparalleled precision, which is critical for the performance of modern electronics.
Exploring the effect of H2O2 eustress on individual cancer cells using hopping probe scanning ion conductance microscopy (HPICM)
Researchers used HPICM to study the effect of H2O2 eustress on individual colorectal cancer Caco-2 cells, finding that low levels of H2O2 can increase cell stiffness and negatively impact antioxidant defense. The findings suggest a potential new target for colon cancer treatment, inhibiting GPX under H2O2 eustress.
AI-enabled atomic robotic probe to advance quantum material manufacturing
Scientists at NUS developed an AI-enabled atomic robotic probe to fabricate carbon-based quantum materials at the atomic scale. The CARP concept utilizes deep neural networks to autonomously synthesize open-shell magnetic nanographenes with precise engineering of their π-electron topology and spin configurations.
Capturing ultrafast light-induced phenomena on the nanoscale: development of a novel time-resolved atomic force microscopy technique
Researchers developed a novel time-resolved atomic force microscopy (AFM) technique to study ultrafast light-induced phenomena on the nanoscale. The new method allows for measurement of high-speed dynamics in insulators and conductive materials with nanometer resolution.
Breakthrough: Scientists develop artificial molecules that behave like real ones
Researchers from Radboud University have developed a quantum simulator to create artificial molecules resembling real organic ones. This allows for the simulation of complex chemical reactions and properties, paving the way for new materials and technologies.
Scanning probe simultaneously captures structural and ion concentration changes
The study simultaneously measures topography and ion concentration profiles of lithium ion batteries during charging and discharging, revealing correlations between structural and ion concentration changes. This enables the evaluation of battery performance and optimization of operating conditions.
What’s your gut telling you?
Researchers have created a tiny pill-like electromagnetic device that can provide medical professionals with diagnostic information about the inner workings of the gastrointestinal tract. The device, when swallowed, delivers data to a smartphone as it passes through the body using electromagnetic technology similar to MRI machines.
Magnetic spins that ‘freeze’ when heated: Nature in the wrong direction
Physicists observe unique behavior in neodymium material when heated, where magnetic spins form a static pattern; this phenomenon is counterintuitive and rare in nature. The discovery may lead to new information storage or computational concepts.
Self-driving microscopes discover shortcuts to new materials
Researchers at Oak Ridge National Laboratory developed an algorithm that guides breakthroughs in new materials using self-driving microscopes. The approach combines physics and machine learning to automate microscopy experiments, enabling faster discoveries of functional materials' properties.
Under the scanner: GIST scientists unravel the inner workings of DNA repair enzymes
GIST scientists utilized latest advances in single molecule detection to observe the enzymatic activity of gene repair. The study revealed that ExoIII has an affinity for damaged DNA sites, creating a gap that Pol I fills. Understanding this mechanism may lead to technologies for targeted gene repair and drug development.
New imaging tool visualizes cell functions in a microphysiological system
Researchers at Tohoku University developed a new analytical method that utilizes scanning probe microscopy to visualize cell functions in microphysiological systems. The tool provides spatial information about cell functions rapidly, overcoming limitations of traditional electrochemical sensors.
ORNL's Sergei Kalinin elected Fellow of the Microscopy Society of America
Sergei Kalinin, a senior distinguished member at the Microscopy Society of America, has been elected as a Fellow. He is recognized for his pioneering work in quantitative scanning probe and scanning transmission electron microscopy. His research focuses on applying artificial intelligence to advanced electron and scanning probe microsc...
Harnessing socially-distant molecular interactions for future computing
Researchers have discovered that individual molecules on a metal surface can interact with each other over large distances, potentially revolutionizing the field of computing. This phenomenon has significant implications for the development of new electronic and optoelectronic technologies based on organic molecules and 2D materials.
Smart data enhances atomic force microscopy
A team at University of Washington demonstrates an innovative approach to bridge AFM and big data, offering better spatial resolution and accuracy. By using sequential excitation strategy, they deduce physical insight from PCA data and speed up analysis by orders of magnitude.
Nature: Tricky feat with stand-up molecule
The Forschungszentrum Jülich team successfully oriented a platelet-shaped PTCDA molecule as desired using a scanning probe microscope. The molecule is surprisingly stable in the upright orientation and can be used to create new electronic functionalities, such as logic and sensor circuits.
Advanced energy storage material gets unprecedented nanoscale analysis
Researchers at Oak Ridge National Laboratory have developed a technique to track ion movement in the MXene material, revealing important insights into its energy storage properties. The study's findings suggest that ion insertion and diffusion play a crucial role in the material's exceptional performance.
ASRC professor leads study on reconfigurable magnetic nanopatterns
A team of international scientists has demonstrated a novel approach for designing fully reconfigurable magnetic nanopatterns using thermal scanning probe lithography. This method offers researchers the opportunity to control magnetism at the nanoscale, enabling the development of novel metamaterials and computing devices.
Manipulating complex molecules by hand
Jülich researchers create a word using 47 molecules by manipulating them with a novel control system. The technique allows for the first time to remove large organic molecules from associated structures and place them elsewhere in a controlled manner.
Making a point
Researchers at Northwestern University developed a new method for rapidly prototyping nanoscale devices and structures, combining the benefits of scanning-probe lithography and polymer pen lithography. The technique, called hard-tip, soft-spring lithography, produces patterns with sub-50-nanometer resolution and scalability.
AFM tips from the microwave
Scientists from Friedrich-Schiller-University Jena developed a new process to grow carbon nanotubes on scanning probe tips, utilizing microwave radiation for rapid growth. The method improves the fabrication of sharp atomic force microscopy tips, reducing costs and enabling routine measurements.
Getting The Low-Down On Surfaces
Scientists can now examine a material's surface using specially constructed probes, identifying contaminants and component parts. The probes also measure thermal properties, conductivity, and topography to provide insights into material behavior.