Esterification of Model Peptides in Aqueous Solution

Reactivity of aliphatic peptides toward hydroxyl radicals in aqueous solution.

増 田高廣,吉 原清隆,篠 原広行,近 藤正春:東 京都立大学理学部化学教室,東 京都世 田谷 区深 沢2-1-1〒158 Rate constants for the hydrogen abstraction reactions of hydroxyl radicals from aliphatic peptides and N-acetyl amino acids were determined by the p-nitrosodimethylaniline method in gamma-irradiated solutions. For peptides, enhancement of reactivity toward hydroxyl radicals was expected, because of disappearance of suppression by NH3...

the effect of aqueous extract of garlic on formalin-induced pain in male rats

چکیده اثر عصاره آبی سیر بر درد ناشی از آزمون فرمالین در موش صحرایی نر به کوشش نرگس اسکندری روزبهانی زمینه و هدف: گیاه سیر از خانواده لیلیاسه و گونهallium sativum بومی آسیای میانه بوده و از دوران ،باستان تاکنون به خواص درمانی متفاوت آن مثل: کاهندگی قندخون، کلسترول خون، فشار خون، اثرات مفیدآن بر دستگاه قلبی عروقی و بیماریهای انعقادی خون، اثرات آنتی اکسیداتیو، درمان بیماریهای تنفسی وگوارشی، ا...

Sonochemical degradation of azithromycin in aqueous solution

Background: The presence of pharmaceutical substances and their residual in water resources is an important environmental concern. Azithromycin, an antibiotic that is used for the treatment of infectious diseases, is a pollutant agent in the wastewater. The aim of this study was to investigate azithromycin degradation in aqueous solution through ultrasonic process in the presence of zinc oxide ...

Investigating the Solubility of CO2 in the Solution of Aqueous K2CO3 Using Wilson-NRF Model

Hot potassium carbonate (PC) solution in comparison with amine solution had a decreased energy of regeneration and a high chemical solubility of . To present vapor and liquid equation (VLE) of this system and predict  solubility, the ion specific non-electrolyte Wilson-NRF local composition model (isNWN) was used in this study; the framework of this model was molecular. Therefore, it was suitab...

A Simplified Perturbation Model for Prediction of Mean Ionic Activity Coefficient in Aqueous Electrolyte Solution