Articles tagged with Single Molecule Analysis
Researchers at Salk Institute develop novel 'dye-cycling' strategy to measure RNA polymerase movement along DNA with unprecedented lengths of time. This breakthrough provides critical mechanical insights into how genes are transcribed in cells, shedding light on the fundamental processes of life.
Physicists have developed a method to visualize three-dimensional wavefunctions of molecules, enabling the study of molecular interactions. The technique, which uses a table-top soft-X-ray laser and powerful computer algorithms, allows for the imaging of features smaller than atomic scales.
Researchers discovered a new mechanism by which leiomodin builds actin filaments in muscles, challenging a long-standing paradigm. This breakthrough may lead to therapies for dilated cardiomyopathy and other muscle diseases.
A University of Houston chemist is uncovering how copper imbalances in neurons contribute to neurodegenerative diseases like Alzheimer's, Parkinson's, and ALS. The new imaging technique provides a closer look at individual protein behaviors inside living cells, giving researchers insight into the cellular pathways that fail.
Researchers at Texas A&M University develop a laser technique called TRIP to directly measure quantum forces shaping proteins, enabling accurate prediction of how pharmaceutical drugs interact with them. This breakthrough could lead to the design of medicines tailored to specific diseases, revolutionizing precision medicine.
Researchers at Harvard's SEAS have developed a highly sensitive calorimeter that can detect metabolic heat signals on the order of 100 picowatts in living cells. The device tracks the growth of small populations of bacteria in real-time, including monitoring how bacterial growth changes in response to different antibiotics.
Researchers at the University of Göttingen have developed a new method to make biomolecules glow in real-time, eliminating unwanted signals in microscopy. This approach ensures only labelled biological molecules emit fluorescence, making experiments clearer and easier to interpret.
The University Carlos III de Madrid (UC3M) has introduced a state-of-the-art scanning transmission electron microscope (TEM/STEM), offering exceptional atomic resolution capabilities. This equipment will support research in cutting-edge technologies like biomedicine, microelectronics, and quantum sciences.
A new diagnostic platform enables rapid and accurate detection of drug-resistant C. auris pathogens using CRISPR technology, allowing for more effective treatment and prevention of hospital outbreaks. The dSHERLOCK test can detect the presence of mutations causing antimicrobial resistance in just 40 minutes.
Researchers at Auburn University have discovered the strongest natural protein bond ever recorded, revealing how Staphylococcus aureus clings tightly to human skin. The study found that calcium plays a key role in fortifying this grip, making it stronger and more resistant to breaking.
A University of Missouri-led study has uncovered how poplar trees can naturally adjust a key part of their wood chemistry based on changes in their environment, supporting improved bioenergy production. The discovery sheds light on the role of lignin and its potential to create better biofuels and sustainable products.
Researchers have created a tiny spectrometer that can accurately measure light wavelengths and is small enough to fit on a phone. The technology has the potential to be integrated into smartphones and enable new applications in fields like manufacturing and biomedical diagnostics.
Researchers at Harvard University's Wyss Institute have successfully created human microglia cells in a dish, using induced pluripotent stem cells, within four days. This breakthrough enables new avenues for brain disease-focused research and potential therapeutic perspectives.
A team of researchers has revealed the molecular mechanisms underlying the binding of small extracellular vesicles to host cells, which could lead to the development of more effective cancer treatments. The study found that EVs primarily bind to laminin via CD151-associated integrin heterodimers and GM1, eliciting responses in recipien...
Researchers discovered a new process by which cancer cells use small extracellular vesicles to spread to healthy tissue. The study found that these vesicles are primarily internalized by clathrin-independent endocytosis via galectin-3, which is facilitated by an increase in intracellular calcium concentration.
Researchers found that folded peptides are more electrically conductive than their unfolded counterparts due to the formation of a specific secondary structure called the 3_10 helix. This discovery has implications for the design and development of molecular electronic devices.
A groundbreaking quantum sensor capable of detecting minute magnetic fields has been developed through international scientific collaboration. The sensor utilizes a single molecule to sense electric and magnetic properties of atoms, offering spatial resolution on the order of a tenth of an angstrom.
A recent study published in Nature Nanotechnology investigates the coronavirus's ability to attach to human cells under various mechanical stresses. The Alpha variant shows stronger cell adhesion, potentially contributing to its rapid transmission.
A groundbreaking study analyzed the behavior of atoms in COVID-19 proteins to understand its evolution and spread. The research found critical distinctions in mechanical stability among various virus strains, highlighting how these differences contribute to the virus's aggressiveness.
Researchers have created a new analytical method to identify and measure small microplastics in the environment. The technique combines flow cytometry with pyrolysis gas chromatography mass spectrometry to characterize and count these tiny particles, providing a more complete picture of their abundance and type.
Scientists have developed a new method to deliver genetic information to stem cells using nanoparticles coated with a specific polymer, enabling more efficient control over cellular differentiation. This innovation has the potential to improve the efficiency and effectiveness of regenerative medicine treatments.
Researchers at the University of Freiburg have discovered a new type of friction in proteins called anisotropic friction, which depends on direction. The discovery was made using single molecule experiments and simulations, revealing that friction increases with the pulling angle applied to a ligand from a protein.
Carlas S. Smith receives Biophysical Journal's Paper of the Year-Early Career Investigator Award for groundbreaking work on single-molecule localization microscopy precision. His research provides new opportunities to optimize methods for achieving optimal precision in localization microscopy.
A Collaborative Research Centre investigates animal navigation using the Earth's magnetic field. The study focuses on vertebrates, including birds and fish, aiming to protect endangered migratory species.
Researchers developed a technique to 'see' fine structure and chemical composition of human cells with high resolution. The new method uses infrared light to reveal chemical signatures without fluorescent labeling.
Researchers developed a mathematical model to predict the efficiency of nanoparticle delivery into cells, particularly in stem cells. They found that nanoparticles become trapped in bubble-like vesicles, preventing them from reaching their targets.
Researchers developed a method for detecting cancer miRNA patterns using DNA computing technology, enabling simple and early cancer diagnosis from liquid biopsies. The technology uses nanopore decoding to recognize cancer-specific expression patterns even at extremely low concentrations of miRNA.
Researchers at Chalmers University of Technology have developed a groundbreaking microscopy technique that allows for the study of proteins, DNA, and other biological particles in their natural state. This innovation enables earlier detection of promising drug candidates and provides valuable insights into cell communication processes.
A team of scientists has discovered that the enzyme DNA topoisomerase VI plays a critical role in removing chromosome tangles in plants, which may lead to new antimalarial drug targets. The study provides unprecedented insight into the mechanism of action of this enzyme and its potential applications in plant breeding.
Researchers in Japan have designed the first de novo-designed peptides that can form artificial nanopores to identify and enable single molecule-sorting of genetic material in a lipid membrane. The peptides can detect specific molecules, including DNA, and have the potential to mimic natural proteins' ability to detect specific proteins.
Researchers at Arizona State University have developed a new microscopy method that can track 100 single molecules simultaneously in three dimensions. The technique uses surface plasmon resonance (SPR) technology to precisely image molecular binding events and study their dynamic activities in real time.
Scientists developed a new method to investigate plasmonic activity during tip-enhanced Raman spectroscopy. This enables real-time optimization of experimental conditions, improving the usability of TERS for biological samples.
A new study from KAUST has improved the efficiency of protein-induced fluorescence enhancement (PIFE) by identifying conditions that lead to either enhanced or quenched fluorescence. By understanding these conditions, researchers can better interpret laboratory results and gain more precise insights into molecular events.
Scientists have successfully measured thermal transport through single-molecule junctions for the first time, revealing that heat transfer is length-independent. The breakthrough uses custom-developed calorimetric-scanning-thermal-microscopy technique to determine thermal conductance, which originates from atomic vibrations or phonons.
Researchers have developed a technique to control individual molecules for a millionth of a billionth of a second, reducing reaction time by over two orders of magnitude. This breakthrough enables precise control over chemical reactions at the single molecule level, opening up new avenues for nanoscale research and discovery.
Researchers tracked over 10,000 molecule trajectories to find increased reaction rates and reduced adhesion in nanowell-confined catalysis. The study could lead to the design of high-performance catalysts.
Researchers activate a single molecule switch using an atomic-force probe, revealing the need for precise positioning and chemical reactivity. The study's findings could lead to new control of chemistry at the atomic level.
Researchers develop a universal theory to describe single-molecule temporal resolution, enabling real-time observation of macromolecules in live cells. This breakthrough allows for the study of chemistry and biochemistry at a single-molecule level.
Scientists from TUM and LIU create technology to cage molecules in 2D nanopores, allowing them to investigate thermal behavior of individual species. They successfully track molecule motions at sub-nanometer resolution using scanning tunneling microscopy.
Researchers at UC Davis have developed a method to measure the conformation of single molecule 'wiring', resolving a gap between theoretical predictions and experiments. This technique provides important information for theoretical modeling, enabling better design and prediction of molecule-scale circuits.
Researchers developed a simple mechanical model to effectively explain DNA's double-stranded structure and elasticity at the nanoscale. The model shows how extreme conditions can cause DNA conformational changes, and its extension is used to study various phenomena such as sequence heterogeneity and protein-DNA interaction.
A team of physicists has successfully demonstrated magnetism within a single molecule. By applying voltage, researchers were able to switch the magnetic state on and off, reproducing elementary physics in a single molecule. This discovery provides new insights into magnetism as an elementary phenomenon of physics.
Researchers from Columbia University successfully characterized van der Waals interactions in gold-molecule-gold junctions at the single-molecule level. This discovery opens up possibilities for designing and optimizing organic electronic devices with greater efficiency.
The new sensor uses nanometer-scale pores to selectively screen single molecules passing through a semiconductor membrane. The technology has the potential to detect and identify specific proteins in a single cell, with applications in medical research, pharmaceuticals, and fundamental biological studies.
Researchers use single-molecule force spectroscopy to study the dynamics of protein folding, revealing a complex network of intermediate structural and kinetic states. The experiments on calmodulin molecule show distinct subdomains fold independently, interacting with others in a 'energy landscape' with dead ends and express routes.
Researchers confirm the fundamental physical principle relating individual particle behavior to that of a multiparticle system. Using fluorescent molecules and high-resolution imaging, they measured diffusive behavior of ensembles and single molecules, providing the first experimental confirmation of ergodicity.
A new instrument, Centrifuge Force Microscope (CFM), uses centrifugal force to manipulate molecules, offering a low-cost and simple approach to single-molecule manipulation. This technique enables researchers to study the interactions of thousands of molecules simultaneously.
Researchers at TUM have successfully manipulated a single 'zipper' protein molecule to map changes in its energy landscape during folding and unfolding. This breakthrough provides higher-resolution measurements of protein folding dynamics, shedding light on the chain of events leading from DNA coding to biological function.
Biophysicists at JILA have created nonstick gold surfaces and laser-safe gold nanoposts, enabling the precise trapping of biomolecules. This breakthrough could lead to a 10-fold increase in single molecules studied in certain assays, resulting in new insights into molecular diversity.
Scientists at NIST created 'hydrosomes,' tiny water droplets that naturally encapsulate biomolecules, allowing for easy manipulation and analysis. The technique enables the study of single molecule dynamics and may lead to the development of molecule-sorting devices for medical screening or biotechnology research.