Molecular Spectroscopy

A research team has designed and synthesized two fluorescent sensors, CAA and CAB, for fluorescence detection of copper ion (Cu2+) and formaldehyde.

Researchers have developed a novel fluorophore, diaryl maleimide (DAM), with multichromic properties potentially useful for volatile vapor detection in LED lighting systems, showcasing its versatility and applications in sensing technologies.

A new study has been conducted on the phase transitions in 1-adamantylamine and 1-adamantanol. Through various experimental techniques, they revealed the nature of these transitions, including changes in dielectric properties and sensitivity to pressure, providing valuable insights into the behavior of these compounds.

A scientific team has developed a two-photon phosphorescent probe, Ir-CN, for the sensitive detection of sulfur dioxide derivatives in living cell mitochondria.

A new study reveals the potential of Raman spectroscopy in recognizing nucleophosmin (NPM1) mutant gene expression in leukemia cells.

Researchers have developed microbiological and spectrophotometric methods for the quantitative determination of tioconazole, an antifungal drug, providing valuable tools for the analysis and quality control of tioconazole in pharmaceutical preparations.

Researchers have developed a novel near-infrared fluorescent probe, FNIR-pH, that allows sensitive detection of mitochondrial pH and study of mitophagy, revealing cellular health and disease processes.

Serum Raman spectroscopy combined with a convolutional neural network (CNN) offers a highly accurate and noninvasive method for diagnosing gastric, colon, rectal, and lung cancers paving the way for improved cancer screening and early detection.

A recent study reveals the pressure-induced phase transitions in imidazolium manganese-hypophosphite hybrid perovskite using Raman spectroscopy.

Scientists have developed a fluorescent sensor via a surface ion imprinting rice husk-based polymer capable of selectively detecting and efficiently adsorbing copper ions from lake water.

Researchers have conducted a preliminary study on the potential use of near-infrared (NIR) and Raman spectroscopy for predicting ice cream mix viscosity. The study highlights the promising performance of NIR spectroscopy and serves as a starting point for further investigations into in situ application of these analytical tools in the ice cream manufacturing process.

A new study demonstrates the improved accuracy of depth profiling in confocal Raman microscopy for analyzing the structural and chemical composition of polymeric microsphere layers.

Researchers have developed a near-infrared fluorescent probe that allows for highly sensitive detection of butyrylcholinesterase activity and pesticide residue in food samples. The probe offers a ratiometric pattern and shows promise for applications in health evaluation, disease diagnosis, and environmental monitoring.

Raman spectroscopy has the capability of accurately determining the physical and chemical properties of bioplastics (polyhydroxybutyrate hexanoate [PHBHx]), which helps determine the maximum crystallinity a polymer can experience.

Double metal cyanide (DMC) can be monitored in real time using an in situ Raman spectroscopy method. In this study, real-time reaction progress information from in situ Raman results enabled researchers to accurately determine the reaction end point of DMC.

Determining the printing sequences of crossed writings and seal stamps is often difficult because the most common methods used are expensive, time-consuming, and cumbersome. A new method using Raman spectral area scanning offers a better alternative while conducting pigment analysis and determining intersection sequences of writings and seal stamps. We explain why.

Detecting illicit drugs in blood samples requires a rapid, non-invasive technique. The combination of surface-enhanced Raman spectroscopy (SERS) and chemometric techniques, such as principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA), can aid in this endeavor.

The research highlights the significance of tissue preparation methods and demonstrates the feasibility of accurate classification, providing valuable insights into the biomolecular composition of ovarian cancer tissues.

Researchers from Jan Dlugosz University in Poland employ spectroscopic techniques to characterize calcium phosphate precipitation under conditions mimicking the human eye. Their findings shed light on the mechanisms and structural features of these precipitates, contributing to a better understanding of calcification in intraocular lenses.

Two researchers have investigated the fluorescent deactivation behaviors and sensing mechanism of a novel double target fluorescent probe, shedding light on its characteristics and recognition capabilities for aluminum and magnesium ions.

A recent study presents a detailed investigation on the pressure-dependent behavior of a Bi2(MoO4)3 crystal using Raman spectroscopy and lattice dynamic calculations. The study sheds light on the structural transformations and vibrational properties of the crystal under varying pressure conditions, offering valuable insights for material science research.

A new study utilized genetic algorithms to optimize pre-processing strategies and classification models such as SVM, multilayer perceptron, and PLS-DA for improved lung cancer diagnosis using Raman spectra data.

Researchers have developed a rapid and accurate method combining front-face excitation-emission matrix fluorescence spectroscopy and interpretable deep learning to identify the storage year of Ningxia wolfberry, offering a green solution to combat fraudulent practices in the market.

An in situ high-temperature Raman scattering study of monoclinic m-Ag2Mo2O7 microrods reveals an irreversible first-order structural phase transition and melting process, according to new research.

Scientists have investigated the structural changes of a discotic liquid crystal during its phase transitions using a combination of quantum chemical approaches and vibrational spectroscopy.

Biomedical Raman imaging is growing in the biomedical space, where technical advances and new information processing tools and techniques aim to propel the field into the future. An upcoming conference in Atlanta, Georgia, will explore these developments while bringing scientists in this field together.

The article discusses a comparison of Raman imaging assessment methods for phase determination and stress analysis of zirconium oxide layers and their application in the development of zirconium alloys, especially for nuclear applications.

The study investigated the effects of symmetry relaxation on one- and two-photon absorption spectra of two bichromophore systems based on difluoroborate core linked by biphenylene or bianthracene moieties, and found that deviations from planarity of building blocks ensure maximum values of two-photon transition strengths.

Our annual review of new products for atomic and molecular spectroscopy, including details by category and highlights of overarching trends.

The DeepRaman method proposed in the study is an accurate, universal, and ready-to-use method for component identification in various application scenarios.