Researchers have developed a sensitive optical method to detect formaldehyde in exhaled breath, which could lead to an inexpensive and fast way to screen for lung and breast cancer. The new approach uses multipass spectroscopy with optical fringe quenching technique, allowing detection of formaldehyde at low concentrations.
Researchers at Purdue University have created a pearl spectrometer, demonstrating light transport-assisted information processing. This innovation has the potential to improve spectroscopy in biomedical and military applications by providing compact and efficient sensing capabilities.
Fourier transform infrared spectroscopy (FTIR) is widely used for predicting protein secondary structure and quantifying proteins. The technique can detect structural modifications due to interactions with other materials, making it useful for various sample types.
The study confirms the accuracy of ODPL measurements and reveals the possibility of measuring optical absorption in crystals using this method. Researchers found that the origin of the two-peak structure in ODPL spectra is due to the Urbach-Martienssen absorption tail observed in many semiconductor crystals.
Researchers Nathalie Picque and Theodor Hänsch developed dual-comb spectroscopy to detect spectral patterns even in extremely low light conditions. This technique enabled the recording of broad spectra with over 100,000 colors in near complete darkness.
A team of scientists from KAUST has rediscovered the value of an old technique in studying proteins through NMR spectroscopy. By re-examining the molecular motions of proteins, they found that dynamic NOE provides more accurate information about protein flexibility and is less prone to errors, especially in flexible regions.
The study used Mossbauer spectroscopy to analyze iron-containing catalysts and determine their phase composition before and after thermal steam exposure. The results indicate that maghemite is reduced to magnetite when the iron oxides react with water vapor during catalytic aquathermolysis of crude oil.
Researchers have created a novel ultrafast coherent light source in the extreme ultraviolet wavelength region with multi-MHz range repetition rates. The system utilizes intracavity high-order harmonic generation and achieves a repetition rate of 3 MHz, suitable for applications such as ultrafast XUV spectroscopy.
Researchers at UMD have developed a technique to determine the structures of large RNA molecules, enabling understanding of their shape and interactions with other molecules. This technology could lead to targeted RNA therapeutic treatments for diseases.
Researchers developed a new spectroscopy method, 'omnidirectional photoluminescence (ODPL) spectroscopy,' to test materials for electric cars and solar cells. The technique can detect defects and impurities at low temperatures.
Physicists discovered that individual light-harvesting nanotubes with disordered molecular structures transport light energy in the same way. The result is attributed to the linkage of molecules, which averages out small differences, resulting in similar optical properties.
Researchers from Peter the Great St. Petersburg Polytechnic University successfully created silver nanoparticles in an ion-exchanged glass using infrared nanosecond laser pulses. The nanoparticles demonstrate surface plasmon resonance, enabling signal enhancement of up to 10^6 times in Raman spectroscopy.
Researchers developed a framework to study metabolic processes in cancer cells using Raman spectroscopy and microscopy. The technique identified fatty acid synthesis and mono-unsaturation as new metabolic susceptibilities in cancer cells.
Researchers aim to develop compact and portable NMR devices that can detect metabolic disorders and analyze fuels, biofluids, and food extracts. Dr. Danila Barskiy's new group will focus on zero-to-ultra-low field magnetic resonance technology.
Researchers demonstrate that high-resolution spectroscopy can detect water vapour and other chemicals in the atmospheres of exoplanets behind dense clouds. Models based on known exoplanets with clouds show promise for detecting trace species with just a few nights of observations.
A new spectrometer uses dual-comb spectroscopy to measure spectra in mere microseconds, enabling real-time biological imaging and machine vision applications. The device can analyze gases and solids at high speeds, making it ideal for applications like explosion analysis and chemical signatures capture.
Researchers developed a new technique using Laser Raman spectroscopy to analyze mineral-organic aggregations (MOA) for estimating thermal maturity levels in high and over-mature marine shales. This method provides an alternative solution for evaluating maturity in lower Paleozoic and Precambrian shales with rare organic matter.
Researchers at the University of Tokyo have developed a new tool to analyze molecules that is 100 times faster than previous methods. This new method, called time-stretch infrared spectroscopy, can achieve 80 million spectra per second.
Researchers at Texas A&M University have developed a tiny photonic chip that can fit within the tip of a finger, enabling fast and accurate chemical characterization. The device is capable of detecting various molecules in a sample with a sensitivity 10 times higher than traditional Raman spectroscopy systems.
A new method using Vis-NIR spectroscopy reduces the cost and time required to analyze soil samples, allowing for faster restoration of ecosystems. The technology enables scientists to estimate concentration levels in impacted soil quickly and easily.
Researchers at Johannes Gutenberg University Mainz developed a new zero-to-ultralow-field NMR spectroscopy method to analyze chemical reactions in metal containers. This technique overcomes the limitations of high-field NMR, allowing for the observation of complex reactions and catalysis mechanisms.
The new LRC approach enables the investigation of superheavy elements with extreme sensitivity, even at low production quantities. By combining laser spectroscopy and ion mobility spectrometry, researchers can unveil element-specific emission spectra, providing valuable insights into the electronic structure of these exotic atoms.
A new mapping approach based on near-infrared spectroscopy distinguishes between fat and muscle tissue in the heart, improving delivery and monitoring of ablation therapy. This could lead to increased efficacy and reduced complications for ventricular tachycardia patients.
Researchers discovered a two-layer water network surrounding hydrophobic molecules, with the inner layer being longer stable and more densely packed. This new understanding is crucial for biomolecular recognition and protein folding processes.
Researchers have developed a new high-energy hollow fiber compressor beamline to generate intense attosecond harmonic radiation for nonlinear XUV spectroscopy studies. The system achieves 1.5-optical-cycle-long laser pulses with 1.2 terawatt peak power at kilohertz repetition rate, breaking a 10-year-old record.
Researchers developed a new quantum sensing technique that allows high-resolution NMR spectroscopy on small molecules in dilute solution, achieving femtomole molecular sensitivity. This breakthrough enables chemical analysis and magnetic resonance imaging at the level of individual biological cells.
Scientists have designed a gold nanoparticle conjugate that can be used as a platform for developing a light-driven, water-splitting nanodevice for generating hydrogen. The PSI-GNP-PSII conjugate mimics photosynthesis to convert solar energy into chemical energy, offering a potential solution to the current energy crisis.
Researchers paired hyperspectral sensors with machine learning and molecular assays to differentiate between late blight clonal lineages. They found that accuracy increased at early stages of infection before symptoms appeared, suggesting a link to pre-symptomatic effector expression differences.
Researchers have developed a novel scheme for THz dual-comb spectroscopy that requires only a single laser source while maintaining exceptional resolution. The use of adaptive sampling technique minimizes timing instability and allows for accurate detection of small variations in the absorption profile of materials.
Researchers developed solid state and time-step VCD methods to study chirality amplification in supramolecular systems. These enhancements allowed detection of chiral gels, metal complexes, and molecular pairs on solid surfaces, opening a new horizon for VCD spectroscopy.
A new momentum microscope has been built at BL6U of UVSOR, enabling direct observation of Fermi surface and band structure of µm-sized targets. The device achieves spatial resolution of 50 nm for microscopy measurement and resolves photoelectron spectra in both real space and momentum space.
A new measuring method called Higgs spectroscopy helps understand the dynamics of paired electrons in superconductors, revealing typical precursors of superconductivity even above the critical temperature. The technique uses a multi-cyclic terahertz pulse to excite Higgs oscillations and measure them precisely.
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.
Low-energy and high energy states in a layered superconducting material are found to be correlated. The study uses multidimensional spectroscopy to probe quantum coherence, producing coherent excitations lasting up to 500 femtoseconds.
Scientists combine dual-comb spectroscopy with video-rate imaging to create detailed hyperspectral images. The new approach enables rapid acquisition of spectral information for entire scenes, advancing applications in chemical analysis, biomedical sensing and more.
New waveguide platforms enable compact solutions for ultra-high-performance systems, moving key components to chip scale from large tabletop instruments. These platforms support a range of applications, including spectroscopy, precision metrology, and computation.
Researchers at UT University have developed an algorithm that improves Raman spectroscopy's signal-to-noise ratio, allowing for faster graphene mapping. The technique can also be applied to other two-dimensional materials, such as germanene and silicene.
Researchers from Immanuel Kant Baltic Federal University used Raman spectroscopy to study the thrombocytes of patients with cardiovascular diseases and compared their spectra with those of healthy people. The study identified differences in spectral intensity that may indicate changes in physical characteristics of thrombocyte membranes.
The Ferdinand-Braun-Institut presents its developments in diode lasers and UV LEDs, including high-power stacks for industrial laser technology and a compact dual-wavelength system for SERDS spectroscopy. The institute also exhibits a terahertz camera sensor with high sensitivity and fast response time.
Scientists developed a new method to evaluate meat quality using fluorescence spectroscopy, which is precise in classifying meat into standard quality categories. The method detects specific compounds that emit light of a specific frequency range, agreeing with the assumption that connective and adipose tissue make meat more tender.
Researchers create novel materials with diameters of 0.5-2 nm using dendrimer molecules, enabling applications in electronics, biomedicine, and chemistry. Enhanced Raman spectroscopy method boosts sensitivity for detecting subnano clusters.
Researchers have successfully developed a magneto-optic effect measurement device using dual-comb spectroscopy, achieving high resolution and sensitivity. This breakthrough technology is expected to become an important new tool for precise material development and spectroscopic analysis.
A KAIST research team has developed a gallium-based metal complex enabling the rapid chiral analysis of alcohols using nuclear magnetic resonance spectroscopy. This new method can determine enantiomeric excess within minutes, benefiting researchers in organic chemistry and the pharmaceutical industry.
Physicists have produced a new value for the proton's radius in an experiment conducted at Thomas Jefferson National Accelerator Facility, measuring 0.831 fm, smaller than previous results and in agreement with recent muonic atomic spectroscopy results. The new method used electron scattering and novel techniques to improve precision.
Researchers used solid-state NMR spectroscopy to observe rhomboid protease movement, revealing a gate that opens for substrate protein entry. This study provides new insights for developing medication targeting these proteins.
Artificial neural networks successfully identify minor changes in DNA structure caused by UV radiation, enabling early detection of potential cancer risks. The technique uses surface-enhanced Raman spectroscopy and has the potential to be used for medical diagnostics.
Researchers used NMR spectroscopy and hydrostatic pressure to study the impact of internal cavities on protein stability. They found that filling these cavities with water destabilizes the protein, which has significant implications for industrial enzymes and biological drugs.
Researchers developed a new technique called complementary vibrational spectroscopy to study molecular structures. This method combines infrared absorption and Raman scattering spectrometers to provide detailed information about molecular vibrations.
A team of researchers directly observed charge transfer and intermolecular interactions in artificial photosynthesis on a picosecond scale. They used time-resolved attenuated total reflection spectroscopy in the terahertz region to reveal the process, which involves rhenium complexes and Triethanolamine solvent.
Scientists have developed a new technique to study nanoscale chemical structures and local electronic states using tip-enhanced Raman spectroscopy. The method breaks the diffraction limit, allowing for high-resolution analysis of materials at the atomic scale.
Researchers developed a new method using frequency domain measurement in functional near infrared spectroscopy (fNIRS), improving image quality and spatial resolution. This innovation enables enhanced brain imaging with greater depth sensitivity, paving the way for more accurate neuroimaging applications.
Researchers developed a method to measure all phonons in graphene nanostructures, opening new possibilities for material design and optimization. This breakthrough technique uses high-resolution electron spectroscopy inside an electron microscope, resolving spatial and momentum vibrations.
Researchers used Raman spectroscopy to differentiate between benign and cancerous thyroid cells, achieving 97 percent accuracy. The non-invasive technique could reduce the need for invasive procedures, minimizing surgical complications and healthcare costs.
A team of scientists has developed a method to study ultrafast spin-flip scattering rates in ferromagnetic Nickel and nonmagnetic copper using X-ray emission spectroscopy. As temperature increases, ferromagnetic nickel shows a decrease in emissions due to increased electron-phonon interactions.
Scientists at Ruhr-University Bochum created underwater plasmas using optical spectroscopy and modelling, producing extreme conditions that briefly surpass the sun's temperature. The resulting plasma breaks down water molecules into their components, releasing oxygen crucial for regenerating catalytic surfaces.
Tohoku University researchers have developed a technique that improves on current photoluminescence spectroscopy techniques, allowing for the measurement of larger semiconducting crystals. The new approach uses a hollow sphere to minimize photon loss and test internal quantum efficiency, a key property of semiconductors.
A research team at the Fritz-Haber Institute in Berlin demonstrated manipulation of nanolight spectrum by shaping plasmonic gold tips with a focused ion beam milling technique. The spectral response was investigated using scanning tunneling luminescence, revealing precise control over Fabry-Pérot type interference of surface plasmon po...
Scientists have successfully determined the high-resolution three-dimensional structure of proteins inside living eukaryotic cells. This breakthrough technique promises insight into disease-causing proteins and novel drug screening applications.
Researchers repurposed an algorithm from Netflix's movie preference prediction competition to create a method for acquiring classical Raman spectroscopy images of biological tissues at unprecedented speeds. This advance could make the simple, label-free imaging method practical for tumor detection or tissue analysis.
Researchers used Raman spectroscopy to map biomolecular changes in radiation-resistant and radiation-sensitive human lung tumors and head and neck tumors. They found statistically significant differences in lipid and collagen content that could potentially identify treatment-resistant tumors early.