نتایج جستجو برای: oxide activity

تعداد نتایج: 1285079  

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                                                                                  The synthesis of metal nanoparticles has attracted the attention of scientists in various fields, particularly in the chemical, physical, biological and medical sciences. Using extract of plant for nanoparticle synthesis can be advantageous over other biological processes because it eliminates the elaborate proc...

Copper oxide nanoparticles (CuO-NPs) synthesized by an implicitly environmentally benign process using Acanthospermum hispidum L. aqueous plant extract as an effective bio-oxidizing/bio-reducing agent. Phytochemical screening of the fresh aqueous leaves extract showed the presence of coumarins, tannins, saponins, phenols, flavonoids, sterols and volatile oils. Fourier transform infrared spectro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1352

اکسیدهای پلی وینیل پیریدین poly (vinylpyridine n-oxides) قبلا" ساخته و مورد مطالعه قرار گرفته اند. مطالعات نشان دهنده فعال بودن این نوع بیوپلی مرها در مقابل بیماری (silicosis) بوده است . در این کار تحقیقی برای پیشبرد مطالعات در مورد بیوپلی مرهای جدید ضد (silicosis) اکسید وینیل پیریمیدین poly (4-vinylpyrimedine n-oxide)(xiv) طی چندین مرحله واکنش ساخته و مطالعه شده است . منحنی تغییرات ویسکوزیته ن...

Journal: :Clinical science 1997
S P Brennecke N M Gude J L Di Iulio R G King

1. The role of the potent vasodilator nitric oxide in the pathogenesis of pre-eclampsia is unclear. We have tested the hypothesis that placental activity of the enzyme which synthesizes nitric oxide (nitric oxide synthase) is reduced in pre-eclampsia. 2. Placentae were obtained after vaginal delivery or Caesarean section from women who had been assigned to the following groups according to stan...

Journal: :Bioscience, biotechnology, and biochemistry 2006
Noriko Hattori Hiroshi Nomoto Satoshi Mishima Shinsuke Inagaki Masashi Goto Magoichi Sako Shoei Furukawa

An extract of royal jelly (RJ) induced processes from cultured rat pheochromocytoma PC12 cells. Active components were isolated, and identified as adenosine monophosphate (AMP) and AMP N1-oxide. AMP N1-oxide was more than 20 times as active as AMP, judging from the minimal concentration to elicit activity. AMP N1-oxide was thought to be responsible for about half of the process-forming activity...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1999
A F Ernst H H Wu E E El-Fakahany S C McLoon

A transient ipsilateral retinotectal projection is normally eliminated during embryonic development of the chick visual system. Administration of the NMDA receptor antagonist 5-methyl-10, 11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine (MK-801) during the developmental period in which this projection normally disappears prevented its complete elimination. Previous studies showed that tectal ce...

Journal: :Stroke 1994
N Clavier J R Tobin J R Kirsch M Izuta R J Traystman

BACKGROUND AND PURPOSE Nitric oxide-mediated cerebral vasodilation is altered in spontaneously hypertensive stroke-prone rats. Stroke predisposition in this strain could be related to a genetic defect of brain nitric oxide synthase, the enzyme responsible for nitric oxide production. We tested the hypothesis that brain nitric oxide synthase activity is altered in spontaneously hypertensive stro...

Journal: :The Journal of pharmacology and experimental therapeutics 2013
Danielle M Friend Jong H Son Kristen A Keefe Ashley N Fricks-Gleason

Nitric oxide is implicated in methamphetamine (METH)-induced neurotoxicity; however, the source of the nitric oxide has not been identified. Previous work has also revealed that animals with partial dopamine loss induced by a neurotoxic regimen of methamphetamine fail to exhibit further decreases in striatal dopamine when re-exposed to methamphetamine 7-30 days later. The current study examined...

2015
P. VANATHI P. RAJIV RAJESHWARI SIVARAJ

Objective: The present investigation determines the biological synthesis and characterization of Copper oxide nanoparticles from aqueous extract of Eichhornia crassipes and assessing its effects on antimicrobial activity against the pathogens. Methods: In this method Eichhornia mediated copper oxide nanoparticles were synthesized and characterized by FT-IR, FESEM and EDX and also antimicrobial ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1390

به منظور بررسی اثر محلول پاشی عناصر کم مصرف آهن و روی بر عملکرد، اسانس و مواد موثر گیاه دارویی بابونه دو آزمایش در سال های 1387 و 1388 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه تبریز اجرا گردید. آزمایش ها به صورت طرح بلوک های کامل تصادفی با چهار تکرار پیاده گردید. تیمارها شامل محلول پاشی آهن، روی و آهن و روی (با غلظت 5/3 درهزار سولفات آهن و سولفات روی) در زمان های متفاوت (مرحله ساقه روی، مرحله ...

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