Articles tagged with Atomic Force Microscopy
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Researchers have developed a new approach to overcome limitations in single-atom catalysts by creating one-dimensional organic polymers capable of selectively binding metal atoms. The platform marks a major advance in single atom catalysis, enabling stronger gas binding compared to other structures.
A recent study published in Nature Communications reveals that the mechanical properties of the developing brain play a significant role in synapse formation and electrical signal emergence. The researchers found that softer regions exhibit higher synapse densities, while stiffer regions show lower densities.
A Kyoto University study reveals the molecular mechanism of high-density lipoprotein (HDL) production. Researchers used a new imaging method to show how ATP-binding cassette protein A1 (ABCA1) generates HDL molecules, a complex process involving the transfer of lipids into the extracellular domain.
A new AI-driven AFM platform accurately identifies macrophage polarization states and distinguishes between M0, M1, and M2 phenotypes. The model successfully validated using flow cytometry data, showing promise for disease diagnostics and therapeutic responses.
A new platform enables real-time super-resolution imaging visual guidance during manipulation, allowing for precise control of feature-sized targets. The microlens-AFM probe improves imaging resolution by over 10-fold and enhances manipulation accuracy by 50%.
The study reveals that four units of ZapA protein form an asymmetric ladder-like structure with FtsZ protofilaments, impacting the alignment of the Z-ring. The interaction between ZapA and FtsZ is dynamic, with cooperative binding and structural alterations, enabling the maintenance of FtsZ mobility.
The European Research Council has awarded ERC Advanced grants to Inga Kamp, Wouter Roos, and Syuzanna Harutyunyan from the University of Groningen for their innovative research projects. Kamp's project focuses on deciphering rocky planet building blocks using the James Webb Space Telescope, while Roos investigates RNA-containing viruse...
Researchers captured real-time supramolecular gel formation using high-speed atomic force microscopy, overturning previous assumptions about the process. A novel 'block-stacking model' explains the unique 'stop-and-go' behavior of growing fibers.
Researchers develop advanced materials from plant waste, enhancing wood strength without increasing weight or harming the environment. The treatment used is simple, cost-effective and safe, making it a potential replacement for traditional construction materials.
A team at HZB developed a method using photo-voltage to detect individual and local spin states of defects in diamonds. This could lead to more compact designs of quantum sensors. The research uses nitrogen vacancy centres, which can be manipulated with microwaves.
Researchers have developed a pioneering method that combines atomic force microscopy with artificial intelligence to detect changes in cancer cells at a small scale. This enables more accurate and reliable diagnoses, potentially leading to earlier detection and better treatment outcomes.
Researchers at ETH Zurich developed a method to measure frictional forces between single particles in suspensions. By understanding these microscopic interactions, they can optimize suspension flow characteristics and prevent dramatic thickening.
Researchers visualized the dynamic shuttling of α-CD rings along a PEG chain in real time, revealing localized structural changes. The study introduces a new method for analyzing supramolecular polymers and could pave the way for energy-efficient molecular motors.
Researchers at the University of Basel have discovered that bacteria assemble their nanoweapons, known as type VI secretion systems (T6SS), in response to cell envelope damage. This rapid retaliation allows Pseudomonas aeruginosa to incapacitate attackers and thrive in diverse environments.
Researchers developed a new microscopy technique, HS-iFM, to study the dynamic mechanical properties of Escherichia coli membranes. The technique revealed increased stiffening during cell division and observed visible bridges that formed and eventually broke.
A NRL multi-disciplinary team developed a nonvolatile and reversible procedure to control single photon emission purity in monolayer tungsten disulfide by integrating it with a ferroelectric material. This novel heterostructure introduces a new paradigm for control of quantum emitters.
The researchers used noncontact atomic force microscopy to analyze the surface structure and found that the surface rearranges to allow aluminum atoms to penetrate into the material. This rearrangement reduces energy and stabilizes the structure without changing its composition.
Atomic Force Microscopy (AFM) offers groundbreaking insights into brain cells and tissues, enabling early detection and monitoring of neurodegenerative diseases. The review highlights the potential of AFM in characterizing biomarkers in cerebrospinal fluid and blood to enhance diagnosis and treatment.
Scientists directly observe the precise shape of ice at its interface with liquid for the first time, revealing a flat surface with occasional steps. They also found that the ice is harder than previously estimated, using antifreeze and advanced microscopy.
Researchers use atomic force microscopy to study mouthfeel and flavor perception, potentially leading to health-promoting products with optimal taste. The study's findings could also redefine the traditional definition of flavor, incorporating mechanical perception as an additional factor.
Physicists at Princeton University have successfully visualized the Wigner crystal, a quantum phase of matter composed of electron crystals. The team used a scanning tunneling microscope to directly image the crystal, confirming its properties and enabling further study.
Researchers from Osaka University have developed a combined microscopy technique that captures the nanoscale behavior of azo-polymer films triggered by laser light. This allows for real-time observation with high spatiotemporal resolution, shedding light on the mechanism of light-driven deformation in these materials.
Researchers from Nano Life Science Institute discovered how genetically designed peptides form single-molecule thick crystals on graphite surfaces. The behavior is directly related to their molecular architecture, with negatively charged and positively charged peptides forming unique oblique lattices.
Researchers used advanced techniques to study TMEM16F's structure and function in its native environment, uncovering previously overlooked structural conformations. The study reveals a dynamic and flexible functioning of the protein, essential for regulating cell functions such as blood coagulation and immune defense.
Researchers developed a deep learning algorithm to remove probe effects from AFM images, enabling the resolution of material features smaller than the probe's tip. This breakthrough allows for accurate three-dimensional surface profiles, crucial for nanoelectronics development and scientific studies.
VUB researchers have developed a method to arrange particles in a hexagonal pattern on hard surfaces, opening up new possibilities for sensors and electronics. The technique uses static electricity generated by rubbing particles across the surface, enabling dense packing of particles on conductive and non-conductive surfaces.
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.
Researchers have successfully trapped krypton atoms within a carbon nanotube to create a one-dimensional gas. The team used advanced transmission electron microscopy (TEM) to capture the moment when Kr atoms joined together, allowing them to study their movement and behavior in real-time.
The researchers identified that the flexibility of a protein hinge plays a crucial role in the transfer of proteins in key cell processes. They found that a flexible hinge allows ubiquitination to take place by facilitating the rearrangement of the protein around it.
Researchers at TU Wien discovered that feldspar's unique surface geometry provides the perfect anchoring point for water molecules, enabling efficient cloud formation. The hydroxyl layer formed on the feldspar surface allows water molecules to stick and freeze, forming clouds.
A team of scientists at Kanazawa University used high-speed atomic force microscopy to study the structural dynamics of sodium ion channels in cell membranes. They found that voltage sensor domains can dissociate from pore domains when the channel is in a resting state, leading to dimerization between neighboring channels. These findin...
Researchers have successfully fabricated a self-assembling photonic cavity with atomic-scale confinement, bridging the gap between nanoscopic and macroscopic scales. The cavities were created using a novel approach that combines top-down and bottom-up fabrication techniques, enabling unprecedented miniaturization.
Researchers measured the Young's modulus of molybdenum disulfide nanoribbons as a function of width, revealing an inverse relation below 3nm. This increases edge strength due to electron transfer and Coulombic attraction.
Researchers have experimentally confirmed the correctness of a decades-old theory regarding non-uniform electron density distribution in aromatic molecules. This discovery has significant implications for designing new nanomaterials and understanding various chemical and biological processes.
Scientists successfully synthesized long-chain mobile polymers on metallic surfaces using N-heterocyclic ballbot-type carbenes. This breakthrough enables self-assembly into ordered domains and cooperative behavior, holding promise for new applications in nanoelectronics and surface functionalization.
A recent study presents an exciting new way to measure the crackling noise of atoms in crystals, enabling the investigation of novel materials for future electronics. The method allows researchers to study individual nanoscale features and identify their effects on material properties.
The study reveals that the hydration layer on sapphire is non-uniform due to local distributions of surface OH groups, whereas α-quartz has a uniform hydration layer. The interaction force between oxides and water also varies significantly between the two crystals.
Scientists have used high-speed atomic force microscopy to observe the structural dynamics of CaMKII protein, shedding light on its role in modulating neural connections. The study reveals that the protein's structure changes in response to calcium and calmodulin binding, leading to a form of molecular memory.
A novel technique allows for the observation of colloidal particle degradation in real-time, providing valuable insight into the mechanisms of micro- and nanoplastics origin and change over time. The study demonstrates the potential to assess temperature variations, ultraviolet light, and stress on nanoscale particles.
Researchers detected Plasmodium falciparum, the deadliest form of malaria, in mummified tissues from Medici family members. The parasite was identified through microscopic and molecular analyses, revealing characteristic ring-shaped structures and Maurer's clefts.
Researchers comprehensively reviewed recent discoveries in 2D material mechanics, highlighting elastic properties, failure, and interfacial behaviors. Computational advancements are crucial for understanding dynamic behaviors and practical applications.
Researchers have directly observed the signatures of electron orbitals in two different transition-metal atoms, iron and cobalt, using atomic force microscopy. The study validated that the observed experimental differences primarily stem from the different electronic configurations in 3d electrons near the Fermi level.
Researchers at Kanazawa University used high-speed atomic force microscopy to study the TRPV1 protein's structural fluctuations in response to stimulating and suppressing ligands. They found that ligand binding increases conformational fluctuations, while suppression decreases them.
Researchers used microscopy techniques to study polyfluorene chains and found that intra-chain aggregation causes green emission, which disappears when the chain unfolds. The team also discovered a novel optomechanical force acting on some chains, originating from van der Waals interactions and excitonic coupling.
Researchers have elucidated the mechanism of CELSR cadherin dimerization, revealing a twisted cell-cell adhesion molecule complex structure. The extracellular domains of CELSR cadherins exhibited strand- and globule-like portions, which bound through strand-like structures in an antiparallel orientation.
A research team created bioplastic diffraction gratings from chitosan extracted from crab shells, enabling the production of portable and disposable spectrometers. The biodegradable gratings could improve sustainability in optical manufacturing and reduce seafood waste.
Researchers developed a new particle resuspension prediction model based on quasi-static moment equilibrium, which considers flow characteristics, particle morphology, and rough wall surface. The model is more accurate than classical models and can be applied to traceability analysis of pollutants.
Lithium dendrites grow in solid-state batteries after charging and discharging cycles, leading to internal short circuits. Researchers have investigated the starting point of this process using microscopy methods, finding that grain boundaries play a crucial role.
Researchers have discovered how peptides can self-assemble on solid surfaces, enabling the design of hybrid biomolecular nanodevices. The breakthrough uses peptide engineering and molecular recognition to create a seamless interface between biology and technology.
Researchers have developed a new approach to correlative atomic force microscopy, allowing for the simultaneous measurement of electrocatalyst properties. This study focuses on nanostructured copper-gold electrocatalysts and provides insights into catalyst-electrolyte interfaces, enabling targeted optimization.
Researchers at Shenzhen University have developed a compact fiber optical nanomechanical probe (FONP) to measure in vivo biomechanical properties of tissue and even single cells. The high-precision mechanical sensing system enables accurate measurements with spring constants as low as 2.1 nanonewtons.
Researchers at Vienna University of Technology have explained the distribution of potassium ions on mica surfaces using an atomic force microscope in ultra-high vacuum. The study reveals tiny patterns of ion arrangement, which could improve electronic circuit performance and make mica a suitable insulator for 2D materials.
Researchers from Kanazawa University have developed a nanoscopic tool using high-speed atomic force microscopy to assess alternative COVID-19 prevention methods. They found that viral surface roughness can enhance the infectivity of SARS-CoV-2 variants, but spike-neutralizing antibodies neutralize the Delta variant spike protein.
University of Illinois researchers derived the depth profile of electric double layers using statistical analysis and electrostatic calculations. They developed a new method, CP-3D-AFM, to experimentally quantify the charge distribution at electrode-electrolyte interfaces.
Researchers studied diatom shells to understand how they perform photosynthesis in low-light conditions. They found that the frustule can contribute a 9.83% boost to photosynthesis, especially during transitions from high to low sunlight.
Researchers discover individual gold atoms can target specific C-H bonds in organic molecules, enabling a low-energy reaction at room temperature. This breakthrough addresses two significant challenges and paves the way for the synthesis of novel organic and metal-organic nanomaterials.
Researchers from the University of Kassel developed an approach to extend the limits of interferometric topography measurements for optical resolution below small structures. Microsphere assistance enables fast and label-free imaging without requiring extensive sample preparation.
A University of Central Florida researcher is leading a $1.25 million project to map and manipulate materials at the nanoscale. The research aims to unlock new capabilities of materials at the nanoscale, potentially leading to new catalysts and compounds applicable in quantum science, renewable energy, life sciences and sustainability.
Researchers at Kanazawa University and their international collaborators used 3D-AFM and molecular dynamics simulations to study the surface chemistry and structure of individual cellulose nanocrystal particles. The findings reveal new details on chain arrangements, structural defects, and water molecule arrangement near the CNC surface.
Scientists have developed a method to control chemical reactions in a single molecule by applying voltage pulses, resulting in unprecedented selectivity. By fine-tuning the voltage, researchers can interconvert different products formed during the reaction.