نتایج جستجو برای: anti solvent

تعداد نتایج: 416275  

Maryam Maghsoodi, Sara Esmaeilzadeh

       In this study, the effect of recrystallization of naproxen in the presence of hydroxypropyl cellulose (HPC) on the release rate of drug was investigated. Crystals were generated by the anti-solvent approach using the HPC solution in water as the anti-solvent. The samples were subjected to various physicochemical evaluations such as crystal size, scanning electron microscopy, Fourier tran...

Journal: :Small structures 2023

Aqueous zinc‐ion batteries (AZIBs) have attracted wide attention for large‐scale energy storage. However, the practical application of AZIBs is limited by poor reversibility Zn anodes. Recently, a strategy adding low‐cost anti‐solvent to electrolytes proposed experimentally, which can improve therefore performance. Nevertheless, mechanism remains elusive, especially how improved and why various...

Journal: :Journal of Ultra Chemistry 2022

The aim of this review is to provide the systematic information synthetic scheme and biological activity synthesized benzimidazole derivatives. Benzimidazole widely used lead molecule for synthesis various types pharmacologically active moiety. It heterocyclic aromatic fused colorless solid having molecular mass 118.053 g/mol. basic in nature can be served as ligand coordination chemistry. bioa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1389

آرتریت روماتوئید(ra)1 یک بیماری خود ایمن با ایجاد التهاب ، درد ، خشکی و تغییرات مخرب در مفاصل است. تشخیص زودهنگام بیماری در درمان و پیشگیری از عوارض آن مهم است. فاکتور روماتوئید (rf)2 اولین تست خونی شناخته شده برای تشخیصra میباشد. اندازه گیری اتو آنتی بادیهای ضد پپتید حلقوی سیترولینه(anti-ccp)3 که در پاسخ علیه سیترولین تولید می شوند یک روش نسبتا جدیدی در تشخیص این بیماری است. دراین مطالعه اند...

Journal: :Natural Resources for Human Health 2022

Edible films and coatings are layers of edible biopolymers (proteins, lipids polysaccharides) that can be used as an alternate for plastic packaging materials, because is causing environmental pollution it deteriorate human health when come in contact with the food product. Along their environment friendly nature they carry anti-oxidants, anti-microbials, anti-browning agents, neutraceuticals, ...

2004
Rifaat Hilal Z. M. Zaky Shabaan A.K. Elroby

The molecular geometry of orotic acid was fully optimized using the gradient minimization technique. The computed geometrical parameters at the B3LYP/6-311G** level correspond well to those determined experimentally by X-ray diffraction. The relative stability of both the syn and anti conformations was investigated at the B3LYP/6-311G** level, where the syn-form was shown to be slightly more st...

2014
Chang-Suk Kong

As a part of ongoing research to elucidate and characterize antioxidant and anti-inflammatory nutraceuticals, solvent-partitioned fractions from Spergularia marina were tested for their ability to scavenge radicals and suppress inflammation. The results of the 2',7'-dichlorofluorescein diacetate assay indicate that solvent-partitioned fractions from S. marina scavenged intracellular radicals in...

2008
İlhan GÜRBÜZ Erdem YEŞİLADA

The aerial part of Equisetum telmateia Ehrh. is used against various conditions including stomachache and peptic ulcer in Turkish folk medicine. In order to prove the claimed anti-ulcerogenic potential of the plant, aqueous and methanol extracts were prepared from aerial parts of E. telmateia and investigated for their anti-ulcerogenic effect on ethanol-induced gastric ulcer model in rats. Phar...

2015
Somayeh Rahmani Afshin Rajabi Khorrami Farhang Mizani

The essential oils are aromatic compounds found in various organs of plants and they are called volatile or essential oil due to evaporation due to air exposure. In this study, Coriander was extracted by Solvent-Free Microwave Extraction (SFME) in three powers 450, 600 and 800 watt and ultrasonic. Then, by gas chromatography/mass spectrometry, the extracted essential oil is evaluated. The highe...

2016
Isa AI Dzoyem JP Adebayo SA Suleiman MM Eloff JN

BACKGROUND The study was aimed at determining the anti-inflammatory activity of fractions and extracts obtained from Strychnos spinosa leaves on a mediator of inflammation nitric oxide (NO). MATERIALS AND METHODS Leaves were extracted with acetone and separated into fractions with different polarities by solvent-solvent fractionation. The Griess assay was used to determine the nitric oxide (N...

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