Infrared (IR) Spectroscopy

Scientists from Ben-Gurion University of the Negev, the Afeka Tel-Aviv Academic College of Engineering, and the Shamoon College of Engineering recently created a system that combines Fourier transform infrared (FT-IR) spectroscopy with machine learning algorithms to identify bacteria that is resistant to antibiotics.

A recent study published in The Astrophysical Journal explored two new substructures of the inner Milky Way, Shakti and Shiva, unearthing more information into the formation of the galaxy.

NASA’s X-ray Imaging and Spectroscopy Mission (XRISM) uses spectroscopy to study the hottest regions of the universe.

In a study led by scientists from Northwest University in Xi’an, China, carbon quantum dots were tested on how well they can detect hypochlorite and aid in cellular imaging.

In a recent study, spectroscopy-based detection protocols were used to detect Covid-19.

We wrap up our discussion of the mid-infrared spectra of inorganic compounds by looking at the spectra of silicates, nitrates, and phosphates. We will see that silicates have complex surface chemistry, and that infrared spectroscopy can tell us something about this. We will note that, of the five families of inorganics examined, the wavenumber ranges for the polyatomic anion stretching peaks in several of these functional groups overlap. However, polyatomic anion bending vibration peaks can be used to distinguish the five types of inorganics studied.

A recent study from Jagiellonian University examined how spectroscopic techniques can aid in the detection of pancreatic cancer.

As one of the first renowned women spectroscopists, Craver broke down barriers in the field and is recognized for her work compiling reference libraries of spectra that set the foundation for modern infrared (IR) spectroscopy.

To study the effect of various extractants on the structure of peat humic acid, peat humic acid was extracted using NH3·H2O, Na2CO3, NaHCO3, and Na2SO3 via alkali-extraction and acid-precipitation methods.

In a recent study from Optica, researchers from Kyoto University attempt to resolve the limitations of traditional infrared (IR) spectroscopy by using quantum entangled photons to conduct broadband IR spectroscopy.

Industrial scientists, in the spectroscopy community, scour the literature and scientific conferences to buy the technology they need.

Boris Mizaikoff of the University of Ulm recently held a presentation on how analyzing a subject’s exhaled breath can help identify who is suffering from long COVID-19.

Boris Mizaikoff of the University of Ulm in Germany held a presentation on how mid-infrared spectroscopy techniques and exhaled breath analysis can help detect diseases like gastric cancer.

At SPIE Photonics West 2024, Jiachi Ye of the University of Florida held a presentation about a 4f-based free-space optical system (light-based computer) to address power consumption and speed limitations of calculations performed with convolutional neural networks (CNNs).

Spectroscopy is publishing a series of feature articles highlighting the lives and careers of the most influential spectroscopists over the past 100 years. These individuals were selected by our Editorial Advisory Board and team of editors to represent the leading figures in spectroscopy over the century. Our second featured Icon of Spectroscopy is Peter R. Griffiths.

Exploring the transformative capabilities of handheld Fourier transform infrared (FT-IR) spectrometers, Luis Rodriguez-Saona of The Ohio State University emphasizes their pivotal role in ensuring food integrity and safety across the entire supply chain.

In a recent study, a team of researchers revisited methoxyacetone and discovered more about its photochemistry and infrared (IR) spectra.

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This column discusses the spectra of different inorganic functional groups, such as sulfates, carbonates, nitrates, silicates, and phosphates, with special attention being paid to the stretching and bending vibrations of the polyatomic anions in these compounds.

Scientists from Mahaveer Academy of Technology and Science University are investigating the impact of three newly synthesized biologically deep eutectic solvents, derived from amino acids, and choline chloride, on the micellar characteristics of anionic sodium dodecyl sulfate.

Scientists have created a new means of identifying insect species using ATR-FTIR spectroscopy and machine learning methods.

Detecting nitroaromatic compounds is essential to preserve the environment. A recent study out of China saw the development of new conjugated porous polymers (CPPs) that could improve detection of these volatile compounds.

Researchers from Thorlabs Crystalline Solutions, the University of Vienna, and the National Institute of Standards and Technology have achieved a revolutionary breakthrough, publishing in Nature Communications, with mid-infrared supermirrors exhibiting finesse exceeding 400,000, promising unprecedented sensitivity for applications in trace gas sensing and precision spectroscopy.

The author dispels the notion that inorganics do not have mid-infrared spectra by providing an overview of the general characteristics of their infrared spectra.

Researchers from Technische Universität Dresden, reveal new insights into protonated mono and polyamines' behavior by determining pKa values using Fourier transform infrared titration, providing valuable data for chemical analysis.

Spectroscopy spoke with Alexandra Deal about her latest research in using infrared reflection absorption spectroscopy (IRRAS) to analyze molecules at the surface level.

Luis G. Vieira from Universidade do Minho presents a new method in Applied Spectroscopy to address poor contact issues between the sample and the internal reflection element in attenuated total reflection (ATR) spectroscopy, ensuring accurate optical function determination and opening new avenues for precise material analysis

Professor Mary J. Wirth, W. Brooks Fortune Distinguished Professor Emerita at Purdue University, has been named the winner of the 2023 EAS Award for Outstanding Achievements in Separation Science.

Felipe Bachion de Santana of Teagasc in Wexford, Ireland, is exploring new ways to monitor soil quality through using spectroscopic techniques. Spectroscopy spoke to him about his team’s work in monitoring the quality of soil to improve agricultural efficiency.

Monica Arienzo, an associate research professor in the Division of Hydrologic Sciences at the Desert Research Institute, and her team recently used ATR-FT-IR to determine the polymer composition of plastic litter recovered by scuba divers from the lakebed of Lake Tahoe. Spectroscopy spoke to Arienzo about the significance of her work and how spectroscopy can be used to help monitor plastic litter in the environment.