Articles tagged with Cantilevers
Researchers at the University of Illinois created an experimental data set to validate models of supersonic flows around a cantilever plate. The data set reveals complex fluid-structure interactions, including three-dimensional flow in the re-circulation region under the plate.
Researchers have developed a sensitive testing system that can detect resistance in bacteria using tiny cantilevers. This method allows for the detection of not only entire resistance genes but also individual point mutations within minutes, paving the way for faster diagnosis and more effective treatment.
Researchers at Kanazawa University developed a method to overcome constraints in high-sensitivity atomic force microscopy for photosensitive samples. By driving cantilevers with megahertz frequencies, they achieved stable control and imaging of surface topography and composition.
Developing new techniques to improve atomic force microscopy has reduced the noise associated with the technique. By utilizing a piezo component to maintain zero deflection, researchers can record IR signals with improved precision and image smaller sample volumes, like cell membranes.
Researchers discovered a high diversity of physical properties among membrane vesicles (MVs) from different bacteria, with varying adhesion, elasticity and friction. The study used phase imaging atomic force microscopy to analyze MVs from E. coli, P. aeruginosa, P. denitrificans and B. subtilis.
A team of researchers has developed a method to generate mechanical vibration in microcantilever structures using spin current. The study demonstrates the potential for spin current to act as a driving force for micro machines without requiring electrical wiring.
Researchers detail sticky situations at the nanoscale, finding that miniscule differences in surface roughness can cause significant changes in adhesion. Their theory predicts an increase in interface toughness as roughness increases, with potential applications in micro-electro-mechanical systems and nanoscale patterning.
Scientists have created a high-quality diamond MEMS sensor chip that outperforms existing silicon sensors in terms of sensitivity and reliability. This breakthrough could enable the development of highly sensitive and reliable sensors for various applications, including disaster prevention and medicine.
The study shows that using rough particles can significantly reduce the amount of material needed to achieve sudden solidification in suspensions. This could lead to improved cement flow characteristics and potential applications in everyday materials like bullet-proof vests.
Researchers at NIST created a plasmomechanical oscillator (PMO) that modulates light and amplifies extremely weak mechanical and electrical signals. The device, composed of a gold nanoparticle and a silicon nitride cantilever, can amplify faint signals with amplitudes as small as ten trillionths of a meter.
Brown University engineers developed a new method of measuring the stickiness of micro-scale surfaces, which could aid in designing and building micro-electro-mechanical systems (MEMS). The technique uses thermal vibrations to calculate work of adhesion, allowing for the evaluation of material properties and surface textures.
Researchers have created a novel cell scale that enables measuring the mass of living cells with high resolution and monitoring their weight changes over time. This allows tracking of fluctuations during the cell cycle, substance influence on cell mass, and viral infection effects.
Researchers at UT Dallas have created a miniaturized atomic force microscope on a chip, reducing the size and potential cost of the device. This breakthrough technology has the potential to expand the instrument's utility beyond current scientific applications, including the semiconductor industry.
Researchers at Georgia Institute of Technology enhance atomic force microscopy by adding electronic white noise to detect molecular interactions in slow motion. This improvement allows for the measurement of varying shades of gray, enabling a more detailed understanding of molecule binding and unbinding.
Researchers use nanosensors to detect genetic mutations in tissue samples from patients with malignant melanoma. This enables the identification of specific mutations and targeted treatment, significantly extending patients' life expectancy. The new method detects changes quickly and easily using coated microcantilevers.
A team of Karlsruhe Institute of Technology researchers has developed a method to tailor AFM probes with unique designs using 3-D direct laser writing based on two-photon polymerization. The technique enables the creation of custom probes with nanoscale precision, opening up new possibilities for analyzing samples at the atomic scale.
The new sensor can track changes in mass of a few kilodaltons in real time, enabling early diagnosis of diseases like cancer. It detects biological objects, such as viral disease markers, through cantilever oscillations, making it a highly sensitive and scalable technology.
Researchers developed coupled microcantilevers that can measure mass on the order of nanograms in a liquid environment with only a 1 percent margin of error. This enables weighing individual molecules, ideal for biological processes such as DNA hybridization and protein characterization.
Researchers at EPFL have created a highly sensitive motion detector that can detect the movement of microorganisms, including bacteria and yeast, without prior knowledge of their chemistry. The system uses a nano-sized cantilever to capture vibrations caused by living cells, making it suitable for detecting life on other planets.
JILA researchers developed a new AFM probe design that improves precision and stability in picoscale force measurements. The shorter, softer probes enable rapid, precise measurements of biomolecules like proteins and DNA, allowing for the study of folding and stretching events.
Researchers create a system that can weigh particles as small as 0.85 attograms, opening up new possibilities for studying synthetic nanoparticles and biological components of cells. The device, known as a suspended microchannel resonator (SMR), uses a miniaturized sensor to measure the mass of particles flowing through a narrow channe...
The cantilever technology measures drug-bacteria interactions in real-time, detecting rupturing of individual hydrogen bonds and resolving forces of ~10 pN. It offers a sensitive alternative for drug experimentation and early detection of infectious diseases.
Researchers at Georgia Institute of Technology created a miniature version of the Mona Lisa using nanotechnology, with an image 30 microns in width. The team used ThermoChemical NanoLithography (TCNL) to create variations in molecular concentrations on the nanoscale.
Researchers at NC State have developed a new, less expensive nanolithography technique that uses cantilevers and spheres to create patterns at the nanoscale. This technique has potential applications in biological sensors and tissue regeneration efforts.
Researchers at Drexel University have developed a sensor technology that can detect DNA in liquid samples, allowing for quick identification of harmful cells and bacteria. The 'diving board' sensors use electric current to measure the vibration frequency of a cantilever, enabling sensitive and timely tests.
JILA researchers discovered that removing the gold coating on atomic force microscope (AFM) probes improves force measurements in liquid, reducing the error range by 10 times. This breakthrough enables precise measurement of fast processes like protein folding and unfolding.
A new microscopy technique called trolling AFM allows researchers to study soft biological samples in liquid with high resolution and high quality. The technique uses a thin, long nanoneedle to extend the tip of an atomic force microscope, reducing hydrodynamic drag and allowing for minimal disturbance of the sample.
Researchers have created a highly sensitive biosensor that can detect biomolecules without the need for a reference electrode, enabling miniaturization and low-cost applications. The device has potential applications in personalized medicine and early cancer diagnosis.
Researchers at Purdue University have developed a new type of miniature medical sensor that uses acoustic waves from rap music to recharge and monitor pressure. The sensor can be used to diagnose incontinence and treat conditions such as aneurisms and paralysis, offering potential benefits over conventional implantable devices.
A new kind of electro-thermal nanoprobe can independently control voltage and temperature at a nanometer-scale point contact. This probe enables the measurement of nanometer-scale properties of materials such as semiconductors, thermoelectrics, and ferroelectrics.
Researchers have created an alloy that exhibits a strong magnetoresistive effect, enabling sensitive magnetic field detection and tiny actuators. The alloy's unique structure and processing techniques make it a promising next-generation material for microelectromechanical machines.
Researchers at Southwest University of China proposed a novel method to increase the coercivity of MFM cantilevers while maintaining isotropy and reducing annealing temperature. The new coating layer exhibits improved stability and higher resolution, making it suitable for high-performance MFM applications.
Researchers observe fractional vortex state in strontium ruthenium oxide, potentially providing basis for topological quantum computing. The discovery may offer the first experimental evidence for an exotic state of matter predicted theoretically for over 30 years.
Physicists at McGill University have developed a cantilever force sensor to measure the energy involved in adding electrons to semi-conductor nanocrystals. This innovation could lead to the development of components replacing silicon chips in computers, increasing speed and reducing size.
Researchers have created nanoscale cantilevers that can image individual proteins as they function on cell surfaces without causing damage. The new detection mechanism enables high-resolution imaging in a liquid environment, paving the way for studying biological systems and complex nanostructures.
Physicists at Caltech developed a nanoscale zipper cavity that exploits mechanical properties of light to enhance interactions between light and motion. The device can detect weak classical forces and has potential applications in biology, optics, and quantum realm.
Yale researchers have demonstrated silicon-based nanocantilevers that operate on photonic principles, enabling ultra-sensitive measurements at the atomic level. The system can detect as little deflection as 0.0001 Angstroms, and a sensor multiplex format allows for complex measurements of patterns simultaneously.
Researchers have developed a new technology to detect explosives based on their unique thermal characteristics, enabling trace detection and differentiation between individual explosives. The system uses microfabricated bridges to probe thermal signatures of chemical vapors, allowing for high sensitivity and selectivity.
Researchers developed novel probe technology that replaces conventional AFM cantilevers, enabling fast topographic imaging, quantitative material characterization, and single molecule mechanics measurements. These probes can simultaneously measure material properties like adhesion, stiffness, elasticity, and viscosity.
Scientists have developed a technique that combines atomic force microscopy with spectroscopic imaging to analyze extremely small sample sizes. This new approach enables the analysis of samples down to femtogram levels, revolutionizing the field of nanoscale chemical analysis.
Physicists at NIST have demonstrated radio-frequency cooling of a large object by reducing its thermal motion with radio waves. They cooled a silicon cantilever to -228 C (-379 F) using an RF circuit, which may be more practical than optical techniques in some cases.
Cornell researchers demonstrate a new way to make nanoresonators vibrate 'in the plane' – side to side. This technique shakes off extraneous materials, allowing only tightly bound pathogens to be detected. The ability to excite in-plane motion also has applications in making nanoscale gyroscopes and nano optics.
Cornell researchers have found a simple solution to measuring nanoscale vibrations by tapping with an atomic force microscope (AFM), allowing for the detection and identification of bacteria, viruses, and other organic molecules. The new method uses probes similar to those in AFMs to measure vibrations in nanomechanical oscillators.
Researchers at Duke University developed a new molecular 'fishing' technique using atomic force microscopy, allowing for fast and precise measurement of chemical concentrations. The method could be adapted for various chemicals and made faster by parallel testing.
Researchers at NIST have successfully used mechanical motion to induce rotation in rubidium atoms in a gas, generating an oscillating magnetic field. The technique allows for the detection of atomic spins with high precision, opening doors for applications such as high-performance magnetic sensors and quantum computer components.
Researchers at Purdue University have discovered that nanocantilevers, coated with antibodies, attract different densities of proteins depending on their length. This phenomenon could lead to the development of advanced sensors capable of detecting minute quantities of contaminants.
Scientists at Georgia Institute of Technology developed a new nanofabrication technique by growing carbon nanotubes on micro-cantilevers, enabling precise measurement and control over the growth process. This platform allows for rapid testing of various chemistry or growth conditions, accelerating materials discovery.
Researchers at Georgia Tech have created a highly sensitive atomic force microscopy (AFM) technology called FIRAT, capable of high-speed imaging 100 times faster than current AFM. FIRAT can capture material property imaging and parallel molecular assays for drug screening and discovery.
Researchers improve measurement of Casimir force, influencing small objects more than gravity, with implications for nanotechnologists. The study confirms gravity behaves as expected, ruling out exceptions to Newton's theories.
Researchers at Cornell University developed a nanoscale detection device that can identify even the smallest organic molecules, including proteins. The device uses microfluidics to detect genetic markers for cancer susceptibility and has potential applications in medical and forensic diagnosis.
Scientists have created a new technique to write nanometer-scale patterns onto surfaces, extending the capabilities of dip pen nanolithography. The thermal dip pen nanolithography (tDPN) method uses solid inks and special AFM probes with built-in heaters to control ink flow, allowing for precise patterning in vacuum environments.
Researchers at Georgia Institute of Technology and NASA found that nanosprings exhibit mechanical properties similar to macroscale springs. The findings suggest other nano materials may behave similarly to their macroscale counterparts.
Researchers use nanoelectromechanical systems to detect masses as small as 6 attograms, a third of the mass of a typical virus. The technology has potential for detecting and identifying microorganisms and biological molecules.
Researchers at Purdue University developed a miniature device sensitive enough to detect a single virus particle, with applications in environmental health monitoring and homeland security. The device uses a tiny cantilever that vibrates at a specific frequency when a virus particle lands on it, allowing for real-time detection.
Engineers are using chemical force microscopy to produce detailed information about adhesion between single-walled carbon nanotubes and molecules of candidate polymers. The researchers aim to find the strongest interaction, which will give them the best composite material for lightweight applications.
A groundbreaking study by University of Melbourne researcher Dr. John Sader challenges the widespread use of V-shaped cantilevers in atomic force microscopy. His research reveals that these microcantlevers actually degrade instrument performance and cause difficulties in calibration, contrary to accepted practice.
Researchers at Cornell University have developed a tiny atomic battery that can run for decades unattended, converting radioactive energy into motion. The device uses nickel-63 isotope and has potential applications in sensors for missiles and medical devices.
Researchers at UC Berkeley have developed a sensitive assay for detecting proteins associated with prostate cancer, which could lead to fast screening and molecular profiling for various diseases. The technique uses micromachined cantilevers that can detect levels of protein markers 20 times lower than the clinically relevant threshold.
Researchers from Stanford University and IBM's Almaden Research Center successfully measured forces of infinitesimal magnitude for the first time using a new method called magnetic resonance force microscopy. The technique enables the detection of atto-newton forces, which are one billionth of a billionth of a newton.