Phonon dispersion in poly(dimethylsilane)

Nutritional, phytochemical and antioxidant evaluation and FT-IR analysis of freeze dried extracts of Ecballium elaterium fruit juice from three localities

“…The absorptions around 1650.7, 1624.5 and 1669.3 cm -1 could be assigned to ring C-C stretch of phenyl (Lu et al, 2011), which is present at high levels in the polyphenolic components of E. elaterium fruit juices. Absorptions peak at 1404.1, 1401.1 and 1407.1 cm -1 for extracts from Cap-Bon, Kef and Sidi Bouzid respectively, corresponding to CH 3 asymmetric deformation (Agarwal et al, 2006). Only for extracts from Cap-Bon and Sidi Bouzid, the presence of peak at 1369.3 and 1363.2 cm -1 respectively, is due to the in-plane C-O stretching vibration combined with the ring stretch of phenyl (Schulz & Baranska, 2007).…”

Determination of total phenolic content and antioxidant capacity of onion (Allium cepa) and shallot (Allium oschaninii) using infrared spectroscopy

“…The band at 1405 cm À1 is due to CH 3 asymmetric deformation (Agarwal, Tandon, & Gupta, 2006). The peak at 1339 cm À1 is due to the in-plane CAO stretching vibration combined with the ring stretch of phenyl (Schulz & Baranska, 2007).…”

RM1 semi empirical and DFT: B3LYP/3-21G theoretical insights on the confocal Raman experimental observations in qualitative water content of the skin dermis of healthy young, healthy elderly and diabetic elderly women’s

“…AGEs constitute a heterogeneous class of molecules formed from amino carbonyl non-enzymatic reactions that are able to irreversibly modifying the functional and chemical properties of diverse biological structures, and in the human skin, the main affects are on type I collagen [8,9,24]. The glycation effect in the collagen fibers can be detected by Raman spectroscopy in the spectral region between 1000 and 800 cm À1 , and in the region of the Amide I band (1500-1720 cm À1 ) [19,22,44,47,48,55,61]. Therefore, in vivo confocal Raman spectra of human skin dermis, which is rich in type I collagen, could be used to study volunteers of different ages to analyze the effects of skin aging due to the glycation process of this protein.…”