نتایج جستجو برای: ethyl maltol

تعداد نتایج: 34589  

2015
H. Abirami Muhammad Ilyas Prem Kumar Nargis Begum

The aim of this study is to evaluate the bioactive compounds in the ethanolic leaf extract of Azima tetracantha by using Gas chromatographyMass Spectrometry (GCMS). Azima tetracantha leaves were collected from Ariyalur District, Tamil Nadu. The dried leaf powder was extracted with the solvent ethanol by using Soxhlet apparatus. One microlitre of the extract was subjected for analysis by GCMS to...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم پایه 1391

محافظت و محافظت زدایی گروه های عاملی از مراحل اجتناب ناپذیر در سنتز ترکیبات چند عاملی می باشد. محافظت گروه های عاملی الکلی در شیمی آلی مدرن بسیار حائز اهمیت است. فرمیل ها، یکی از گروه های محافظت کننده اساسی الکل ها محسوب می شوند. از طرف دیگر، توسعه و کاربرد کاتالیست ها و حلال های دوستدار محیط زیست و مزایای واکنش های بدون حلال مانند سرعت بالای واکنش، خالص سازی آسان، کاهش آلودگی، راندمان بالای مح...

ژورنال: :international journal of new chemistry 0

abstract: electrical sensitivity of a boron nitride nanotube (bnnt) was examined toward ethyl acetylene (c4h6) molecule by using density functional theory (dft) calculations at the b3lyp/6-31g (d) level, and it was found that the adsorption energy (ead) of ethyl acetylene the pristine nanotubes is about -1.60kcal/mol. but when nanotube has been doped with si and al atoms, the adsorption energy ...

Journal: :iranian red crescent medical journal 0
kazuki nagai department of internal medicine, nagai clinic, yokohama, japan; department of internal medicine, nagai clinic, p. o. box: 2350045, yokohama, japan. tel/fax: +81-458325830 katsuhiko matsumaru department of internal medicine, nagai clinic, yokohama, japan ikuko hirai department of dermatology, saiseikai yokohama-shi nanbu hospital, yokohama, japan yujiro takae department of dermatology, saiseikai yokohama-shi nanbu hospital, yokohama, japan kazuo andoh department of radiology, saiseikai yokohama-shi nanbu hospital, yokohama, japan

conclusions this report is the first to document other treatment possibilities for pressure ulcer and/or stasis dermatitis in cases where the use of topical applied ointments and medications is difficult. this new therapy may therefore help physicians to treat pressure ulcers and stasis dermatitis. case presentation case 1: a 21-year-old japanese female with lower-body paralysis. pressure ulcer...

Journal: :Folia histochemica et cytobiologica 2007
Wojciech Dabros Anna Kordowiak

The biochemical activity and morphology of control and streptozotocin-diabetic rat liver Golgi complexes were previously investigated by us under influence of some vanadium [V(IV)] compounds. The effectiveness of these derivatives depends on the kind of complexing ligands. This paper presents the investigation of the effect of bipyridyl, the ligand of a new vanadium compound, tested by us with ...

2014
K. RAVI KIRAN

Ternary complexes of copper(II) and zinc(II) metal ions with the ligands maltol; 3-hydroxy-2-methyl-4H-pyrone (MA) and glycylglycine (GG) have been synthesized and characterized by IR, H NMR, UV-Visible, mass spectra and TGA techniques. The complexes have been screened for antibacterial activity and the results are compared with the activity of free ligands. Increased activity of ternary comple...

Journal: :Journal of inorganic biochemistry 2014
Orsolya Dömötör Sabine Aicher Melanie Schmidlehner Maria S Novak Alexander Roller Michael A Jakupec Wolfgang Kandioller Christian G Hartinger Bernhard K Keppler Éva A Enyedy

The reaction of the dimer [Rh(III)(pentamethylcyclopentadienyl)(μ-Cl)Cl]2 ([Rh(III)(Cp*)(μ-Cl)Cl]2) with the hydroxypyrone ligands maltol and allomaltol affords complexes of the general formula [Rh(III)(Cp*)(L)Cl] under standard and microwave conditions. The organometallic compounds were characterized by standard analytical methods and in the case of the allomaltol derivative in the solid state...

Journal: :Dalton transactions 2012
Isabel Correia Tamás Jakusch Enoch Cobbinna Sameena Mehtab Isabel Tomaz Nóra V Nagy Antal Rockenbauer João Costa Pessoa Tamás Kiss

The understanding of the biotransformations of insulin mimetic vanadium complexes in human blood and its transport to target cells is an essential issue in the development of more effective drugs. We present the study of the interaction of oxovanadium(iv) with human serum albumin (HSA) by electron paramagnetic resonance (EPR), circular dichroism (CD) and visible absorption spectroscopy. Metal c...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید