Electron paramagnetic resonance study of the paramagnetic centers in gamma-irradiated oxalic acid dihydrate single crystal

Detection of Structural Defect in Methoxymethyltriphenylphosphonium Chloride Single Crystal by Electron Paramagnetic Resonance

“…Trifenilfosfonyum içeren betulinik asit türevlerinin kanserli dokularda antitümör aktivite gösterdiği tespit edilmiştir [39]. EPR spektroskopisi ile birçok gama ışınlanmış organik ve inorganik maddelerin tek kristallerindeki radikaller tespit edilmiştir [40][41][42][43][44][45]. Çalışmamızda, gama ışınlanmış metoksimetiltrifenilfosfonyum klorür (MOMTPPC) tek kristalinin radikal yapısı EPR Spektroskopi tekniği kullanılarak 120 K'de incelenmiştir.…”

Radiation initiated synthesis of (carboxymethyl cellulose/polyacryalmide) hydrogels with polyprotic acid moieties and their utilization in nicotinic acid release

“…Its acidity causes it to form salt with an ion existed in the environment 28 . Moreover, it was reported in literature that influence of gamma irradiation on oxalic acid has been examined and the results declared that the oxalic acid has two biradicals 29 . Karadag and Saraydin synthesized hydrogels from acrylamide and tartaric acid via gamma irradiation 30 .…”

“…Nicotinic acid also is commonly known as niacin, is an organic substances and a form of vitamin B3, an essential human nutrient 32 . Nicotinic is obtained in the diet from a diversity of whole and processed foods, with highest contents in fortified packaged foods, meat, poultry, red fish such as salmon, tuna, lesser quantities in nuts, legumes and seeds 29 . Nicotinic acid as a dietary supplement is exploited to treat pellagra, a disease caused by nicotinic acid deficiency.…”

“…28 Moreover, it was reported in literature that influence of gamma irradiation on oxalic acid has been examined and the results declared that the oxalic acid has two biradicals. 29 Karadag and Saraydin synthesized hydrogels from acrylamide and tartaric acid via gamma irradiation. 30 The results displays that the tartaric acid was existed in the matrix of hydrogels and the emerged hydrogel became stimuli-responsive.…”

“…32 Nicotinic is obtained in the diet from a diversity of whole and processed foods, with highest contents in fortified packaged foods, meat, poultry, red fish such as salmon, tuna, lesser quantities in nuts, legumes and seeds. 29 Nicotinic acid as a dietary supplement is exploited to treat pellagra, a disease caused by nicotinic acid deficiency. Moreover, numerous countries mandate its addition to wheat flour and other food grains, consequently reducing the risk of the pellagra.…”