Researchers developed a self-adaptive Cu–Co catalyst that converts nitrate pollutants into green ammonia, achieving high activity and selectivity. The catalyst's adaptive reconstruction strategy enables it to continuously evolve into its most active state during operation.
A novel measurement cell enables in-situ/operando X-ray absorption spectroscopy measurements under high pressures and temperatures, providing new insights into thermocatalytic processes such as the Fischer-Tropsch synthesis. The setup is suitable for investigating catalytic gas-solid reactions under realistic operating conditions.
A team of scientists has created a method to identify mineral biosignatures on other worlds using Raman spectroscopy. The technique uses machine learning to analyze features of the spectrum, such as band positions and intensities, to determine whether a mineral was formed biologically or abiotically.
Researchers employed terahertz time-domain spectroscopy to investigate oxygen-vacancy migration in amorphous ZrO2 films, revealing its critical role in conductivity and polarization behavior. The study establishes a physical framework for understanding ferroelectric-like phenomena in amorphous oxide materials.
A new method combining FTIR spectroscopy with machine learning improves gas concentration estimation in complex industrial conditions.
Researchers investigated phosphate double-bond character in solid and liquid phases using oxygen K-edge X-ray absorption spectroscopy. The study found that the double-bond character increased with increasing negative charge in the solid phase, but decreased in aqueous solutions due to interactions between phosphates and Na+ ions.
The study found that increasing light intensity decreases diffusion rates of nanotubes in water, a phenomenon known as light-induced quantum friction. The team also demonstrated the immediate coupling between nanotubes and water using terahertz spectroscopy.
Oxygen isotopes in forsterite affect Raman spectroscopy results by causing frequency shifts, lower symmetry, and peak splitting, leading to broader peaks. The study provides a theoretical framework for better interpretation of spectra data.
Scientists have developed a method to measure the electronic structures of liquid water and organic molecules using soft X-ray absorption spectroscopy. By controlling the thickness of the liquid layer, they obtained XAS spectra of both the bulk liquid and the solid-liquid interface.
Dual-comb spectroscopy enables precise, rapid, and broadband measurements using two optical frequency combs with slightly different repetition frequencies. This technique has been implemented across the electromagnetic spectrum, from terahertz to visible range, with ongoing efforts towards ultraviolet range.
A new immuno-infrared sensor can detect misfolded biomarkers for Alzheimer's and Parkinson's diseases in blood samples, providing an early indication of neurodegenerative processes. The technology has broad application potential and holds promise for clinical use and population-wide screening.
Researchers from HZDR have successfully analyzed lanthanum superhydrides under extreme pressure, providing direct insights into their atomic properties. The study employed nuclear magnetic resonance spectroscopy and magnetic superlenses to focus high-frequency fields within the sample volume.
Researchers have developed a coherent Raman spectroscopy method that directly detects ångström-scale molecular films at interfaces without plasmonic enhancement or electronic resonance. This approach suppresses strong substrate background signals, allowing for highly sensitive interfacial Raman spectroscopy.
Researchers develop a photoacoustic spectroscopy system using a gain-switched Er³⁺/Dy³⁺ fiber laser, achieving ppt-level monitoring of multiple key VOCs and improving overall sensing performance by over an order of magnitude. The system enables precise detection of industrial pollutants and non-invasive clinical breath diagnostics.
Researchers tune Pt d electrons to boost LOHC dehydrogenation, achieving volcano-shaped correlation between Pt d electron density and turnover frequency. The optimized catalyst, Pt/MgO, maintains stable performance with lower coke deposition.
Researchers have developed an electrochemical impedance spectroscopy (EIS) identification algorithm to reconstruct EIS at low frequencies using short-duration sine-wave current pulses. The approach enables accurate state-of-charge estimation for LiFePO4 batteries, which is essential for battery management systems.
A new technique called Differential Photoacoustic Stimulated Raman Spectroscopy (DPA-SRS) enables high-sensitivity hydrogen detection at concentrations as low as 1 ppm under atmospheric pressure. The DPA-SRS system achieved a minimum detection limit of 0.65 ppm for hydrogen.
Researchers have achieved first-ever in-situ polarization control in high-field infrared spectroscopy, overcoming a decades-old technical bottleneck. The newly developed collimated magneto-infrared spectroscopy system enables continuous modulation of polarization states under high magnetic fields and cryogenic temperatures.
Researchers integrated transient optical spectroscopy with ultrafast electron microscopy to capture both electronic and structural dynamics simultaneously. This enables the study of heterogeneous materials, phase transitions, and light-driven functional responses with implications for solar cells, quantum computing, and next-generation...
Researchers optimize interferometric diffusing wave spectroscopy technique to boost weak optical field returning from the brain, achieving over 20x signal to noise ratio. The novel approach provides higher brain sensitivity compared to DCS-inspired approaches and is approximately two orders of magnitude less expensive.
Researchers at UAlbany are developing a new technique using Raman spectroscopy to ensure mRNA is properly encapsulated in lipid nanoparticles, improving the safety and effectiveness of mRNA vaccines and therapeutics. The technique allows for instantaneous analysis without damaging the sample, enabling optimization of formulations.
Scientists have created a way to hear a single molecule 'sing' using infrared-integrated STM. This technique combines infrared excitation with scanning tunneling microscopy, allowing for the detection of individual molecular vibrations.
Researchers from EHU's spectroscopy group investigated prolinol's interactions with one, two, and three water molecules, finding that water acts as a conformational switch. The study connects the isolated molecule to behavior in solution, shedding light on how water affects biological systems.
A new system integrates terahertz spectroscopy with deep learning to accurately image, detect, and classify explosives. It achieved a remarkable average classification accuracy of 99.42% at the pixel level for exposed samples.
Researchers have developed two spectroscopic techniques based on quartz tuning fork detection, Quartz-enhanced photoacoustic spectroscopy (QEPAS) and light-induced thermoelastic spectroscopy (LITES), to improve gas sensing technology. QEPAS techniques enhance system signal strength using high-power lasers, novel excitation sources, and...
Researchers overcome spatial resolution limit of sum-frequency generation (SFG) spectroscopy by utilizing plasmonic near-field confinement. This breakthrough enables direct visualization of nanoscale orientation heterogeneity in interfacial molecular domains.
Scientists successfully observed a quinoxalinyl radical forming within nanoseconds using µSR spectroscopy. The technique enabled real-time detection of highly reactive aromatic heterocyclic radicals in isocyanide insertion reactions.
A new terahertz spectroscopy system combines high spectral resolution with micrometer-level spatial resolution, enabling the study of complex light-matter interactions. The system achieved a spatial resolution of 20 µm and a spectral resolution of up to 100 MHz.
Researchers use empress cicada wings as a ready-made nanostructure template to enhance surface-enhanced Raman spectroscopy (SERS) performance. The cylindrical nanostructures separated by five-nanometer gaps amplify Raman scattering signals by a factor of a million compared to non-coated cicada wings.
Scientists have detected the faint signals of electrons in organic materials, revealing new insights into the physics of photodegradation and long-term photoemission processes. By reimagining conventional spectroscopy setups, researchers have captured the exact mechanisms of weak charge accumulation, providing direct evidence for multi...
Scientists developed a Rydberg-atom detector to measure weak terahertz signals, enabling precise spectroscopy and quantum sensors. The detector uses a gas of rubidium atoms in a Rydberg state, tuning them to specific frequencies for calibration.
Researchers discovered that chromium dissolution in Co-Cr spinel oxide creates an oxyhydroxide, activating cobalt and maintaining its activity over a long period. This breakthrough could lead to more efficient and sustainable catalysts for hydrogen production.
The study introduces a promising methodology for elucidating dynamic and heterogeneous chemical signatures across evolving solid-liquid interfaces. Researchers used cryo-XPS to analyze the native SEI composition, revealing a mixed organic-inorganic structure.
Researchers at UOC and ICFO created an accessible, standardized, and useful library for the scientific community using Raman spectroscopy. The database provides high-quality data for the precise identification of biomolecules and will contribute to studying their presence in biological processes such as cancer.
Researchers discovered a new optical principle to amplify light in water using non-harmonic two-color femtosecond laser excitation. This breakthrough achieves a 1,000-fold enhancement in broadband white-light output and unlocks advances in bioimaging and ultrafast spectroscopy.
A new study published in iMetaMed uses single-cell Raman spectroscopy to track biochemical changes in mouse oocytes as they age, revealing a decline in metabolic maturity. The research suggests that mitochondrial dysfunction plays a key role in the age-related decline of egg cell quality.
Researchers developed a non-destructive tool for evaluating loblolly pine disease resistance, achieving 81.5% training accuracy and 68.7% testing accuracy with NIR spectroscopy. The study demonstrates the potential of vibrational spectroscopy to transform forestry phenotyping and precision forestry.
Researchers developed a non-invasive system using optical spectroscopy to measure cerebral blood flow, distinguishing between scalp and brain signals. The device uses an array of detectors to isolate brain signals from noise, enabling real-world data on its scalp versus brain sensitivity.
A team from HZB and Humboldt University used nano-IR spectroscopy to create high-resolution maps of molecules inside live cells and cell organelles. The method allowed them to obtain 3D information, read individual contributions of proteins and nucleic acids, and visualize the nucleus and cell organelles.
The new Singapore Standard (SS) 718 leverages Near-Infrared spectroscopy to authenticate edible bird’s nest, providing a fast and non-destructive on-site method. This standard strengthens consumer trust and levels the playing field for producers in the industry.
Researchers used NMR spectroscopy to capture enzyme dynamics, discovering a 'crossover loop' structure that plays a crucial role in catalyzing reactions. This new method promises unprecedented access to biomolecule mechanisms and potential pathologies.
Researchers developed a novel spectroscopic approach to precisely analyze molecular interfaces at material surfaces. The technique uses gap-controlled infrared absorption spectroscopy, combining conventional ATR-IR with advanced data analysis, allowing for the isolation of interfacial molecular signals.
Researchers used ATR-FTIR spectroscopy to analyze tissue samples from patients with metaplastic breast carcinoma, ductal carcinoma in situ, and invasive ductal carcinoma. The study found that specific spectral features were significantly elevated in carcinomatous tissues and could effectively differentiate between normal tissue and can...
Researchers developed an integrated method to accurately measure hemoglobin levels using near-infrared spectroscopy, overcoming limitations caused by strong water absorption and sample scattering. The approach significantly reduced background noise and achieved high accuracy, making it a reliable tool for non-invasive blood analysis.
Researchers at Purdue University have developed an algorithm that recovers detailed spectral information from photographs taken by conventional cameras. The method uses computer vision, color science, and optical spectroscopy to achieve high spectral resolution comparable to scientific spectrometers.
Researchers developed a photon-level dual-comb spectroscopy system, enabling high spectral resolution and long-term stability in turbulent conditions. The system successfully monitored atmospheric gases with unprecedented sensitivity, paving the way for next-generation optical sensing networks.
Researchers at Purdue University develop atomic-scale spectroscopy using ultrathin 2D materials, enabling improved resolution for NMR spectroscopy. The breakthrough has potential applications in quantum computing and quantum communications.
Researchers at JGU and HIM develop a novel method for atomic structure investigation, discovering new samarium absorption lines with enhanced multichannel DCS approach. The technique enables high-resolution, broadband spectroscopy with improved signal-to-noise ratio.
Researchers develop quantum correlation-enhanced dual-comb spectroscopy to detect molecular signals below quantum noise limits. The technique achieves a 2.6x increase in measurement speed and high-resolution spectra, opening new frontiers in ultrasensitive molecular detection.
Researchers use surface-enhanced Raman spectroscopy to analyze vaginal fluid biochemical fingerprints, detecting specific bacterial species like Lactobacillus iners. The portable device produces comparable results to high-end lab equipment, suggesting its potential for point-of-care monitoring.
Researchers propose a Coulomb attraction-driven spontaneous molecule-hotspot pairing mechanism to achieve synergistic enhancement of electromagnetic and chemical mechanisms in surface-enhanced Raman spectroscopy. This synergy enables efficient detection of single molecules with improved universality, uniformity, robustness, and stability.
This study investigates the diagnostic performance of ATR-FTIR spectroscopy in discriminating normal breast tissue from breast tumors. The analysis reveals that specific biomarkers, particularly the cytoplasm-nucleus ratio marker, demonstrate remarkable diagnostic accuracy.
A new dual-spectroscopy technique, Surface Plasmon-Enhanced Dual Spectroscopy (SPEDS), has been developed to detect hazardous chemicals in complex environments. This approach combines SERS and P-DUS, achieving molecular-level specificity while maintaining real-time responsiveness.
Researchers developed a novel model optimization algorithm named External Calibration-Assisted Screening (ECA) to enhance the prediction robustness of Near-Infrared Spectroscopy (NIRS) quantitative models. ECA rapidly adapts initial models to new detection environments by calibrating them with externally collected samples.
The study reveals evidence of potential p-wave superconductivity at the LaAlO3/KTaO3 interface and proposes a universal approach for identifying superconducting pairing mechanisms. By analyzing tunneling spectroscopy, the researchers observed distinct spectroscopic behaviors that suggest strong coupling with the superconductor can indu...
Researchers developed a magnetic resonance technique to detect fentanyl hydrochloride in sealed packages, offering a non-invasive solution. The technique uses Nuclear Quadrupole Resonance (NQR) spectroscopy, which can identify key target nuclei in the drug, allowing for effective detection and potential diversion of large quantities.
A study reveals that ultra-small nanoparticles can induce abnormal protein conformation and have the potential to cause pathological conditions like Alzheimer's disease. The researchers used spectroscopy-based experiments to analyze the interactions between bovine serum albumin and silica nanoparticles.
Fraunhofer Institute for Applied Solid State Physics has developed a semi-automated process for producing quantum cascade laser modules with MOEMS and EC, simplifying production and reducing costs. The technology enables spectral tunability and high brilliance, making it suitable for various spectroscopy applications.
A research team led by Professor Randolf Pohl has achieved a significant breakthrough in determining the charge radius of Helium-3 with laser spectroscopy, achieving 15 times more precision than traditional particle accelerator-based methods.
A team successfully observed hydrogen and deuterium molecules confined within a picocavity, revealing unprecedented detail about their vibrational modes. The study demonstrates a pronounced isotope-dependent effect, highlighting the potential for advanced molecular spectroscopy and nanoscale sensing.