Molecular Spectroscopy

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.

The researchers believe that the results of this study can contribute to the development of more effective and safer approaches to reduce the toxicity of heavy metals in food and the environment.

Dmitry Kurouski has won the 2023 Emerging Leader in Molecular Spectroscopy Award for his molecular spectroscopy studies revolving around plants.

Combining multiplex coherent anti-Stokes Raman scattering (MCARS) microscopy with automated data processing enables a simple and more accessible method for label-free bioimaging.

The significance of the smaller spectral region of the Raman spectrum, defined as the “fingerprint in the fingerprint” region, cannot be overstated when it comes to active pharmaceutical ingredient identity testing (API).

Studying the crystallinity of biodegradable polymers can be done without the complexity of larger instruments. Here’s how.

Handheld FT-Raman spectroscopy can complement GC–MS and IR in characterizing street drugs.

Extractables and leachable are typically studied using chromatographic techniques. This study explores what we can learn by using from using Raman microscopy for such studies.

Raman and XRF spectroscopy were used to examine paint in artwork, revealing the potential of both techniques to verify the authenticity of famous works of art.