This chapter covers the fundamental principles and current applications of Fourier transform (FT) infrared and Fourier transform Raman spectroscopies as utilized in the analysis of polymeric materials. The primary emphasis of the first part is on the principles and advantages of these interferometric methods, whereas the remaining sections illustrate numerous applications focusing on the struct...

Background and Aims: Mesenchymal stem cells (MSCs) are a preferred cell source for the generation of hepatocyte-like cells in regenerative medicine. They can be isolated from different sources, including adipose tissues. The Raman spectroscopy approach was evaluated for quick and efficient identification of MSCs differentiation status and a broader perspective on cell differentiation. Material...

FT-IR and Raman spectroscopic methods are suggested for identification of orthorhombic (form II) and monoclinic (form I) paracetamol and for their quantitative determination in mixes. The intensity ratio of the 836 cm(-1) FT-IR band (attributed to the presence of both forms) to the 806 cm(-1) monoclinic band plotted against the inverse monoclinic molar fraction (X) yields a straight line: I(836...

While cellulosic and lignocellulosic materials have been studied using conventional Raman spectroscopy, availability of near-infrared (NIR) Fourier transform (FT) Raman instrumentation has made studying these materials much more convenient.1 This is especially true because the problem of laser-induced fluorescence can be avoided or minimized in FT-Raman (NIR Raman) spectroscopy. More recently, ...

For centuries, the colour of foods has played a significant role in way products are perceived and valued. Generally, more vibrant product, higher its quality price. modern-day consumers, various brightly coloured known as superfoods often consumed at concentrations than before. There is emerging attention for adulteration turmeric with yellow, toxic carcinogenic compound lead chromate. Rapid d...

Diiodomethane (CH2I2) has recently become a molecule of significant atmospheric interest as it can contribute to coastal IO formation. As part of the PNNL database of gas-phase infrared spectra, the quantitative absorption spectrum of CH2I2 has been acquired at 0.1 cm−1 resolution. Two strong b2 symmetry A-type bands at 584 and 1114 cm−1 are observed, but are not resolved when broadened to 760 ...

The present work deals the structural and vibrational analysis of Quinoxaline molecule which is pharmaceutically and industrially important heterocyclic compound. The FTIR and FT-Raman spectra of Quinoxaline have been measured in the region of 0-3700 cm and UV-Visible spectrum also was recorded. The computations were carried out by employing DFT/B3LYP method with 6-311++G(d,p) basis set. The fi...

Despite the fact that various microorganisms (e.g., bacteria, fungi, viruses, etc.) have been linked with infectious diseases, their crucial role towards sustaining life on Earth is undeniable. The huge biodiversity, combined with the wide range of biochemical capabilities of these organisms, have always been the driving force behind their large number of current, and, as of yet, undiscovered f...