نتایج جستجو برای: آلودگی غیرنقطه ای nps

تعداد نتایج: 263005  

Journal: :physiology and pharmacology 0
mahboobeh malakoutikhah department of physiology, faculty of medical sciences, tarbiat modares university, tehran, iran leila satarian department of stem cells and developmental biology, cell science research center, royan institute for stem cell biology and technology, acecr, tehran, iran sahar kiani department of stem cells and developmental biology, cell science research center, royan institute for stem cell biology and technology, acecr, tehran, iran mohammad javan department of physiology, faculty of medical sciences, tarbiat modares university, tehran, iran

in addition to its antioxidant effect, vitamin e or α–tocopherol is suggested to enhance remyelination in the animal model of non-inflammatory demyelination. in this study, the possible proliferative effect of vitamin e on human- induced pluripotent stem cell-derived neural progenitors (hips-nps) and the underlying mechanisms were investigated in vitro. nps were induced from ips cells via 3 ste...

Journal: :journal of nanostructures 2015
m. zahraei a. monshi d. shahbazi-gahrouei m. amirnasr b. behdadfar

manganese zinc ferrite nanoparticles (mzf nps) were synthesized by using a direct, efficient and environmental friendly hydrothermal method. to improve the colloidal stability of mzf nps for biomedical applications, nps were coated with chitosan by ionic gelation technique using sodium tripolyphosphate (tpp) as crosslinker. the synthesized nps were characterized by x ray diffraction (xrd) analy...

Journal: :Chemosphere 2013
Qiuli Wu Abdelli Nouara Yiping Li Min Zhang Wei Wang Meng Tang Boping Ye Jiandong Ding Dayong Wang

Nematode Caenorhabditis elegans has been developed in a variety of environmental studies to address adverse effects of a wide range of toxicants. In the present study, we compared the toxicities of three metal oxide nanoparticles (NPs) including TiO(2)-NPs, ZnO-NPs, and SiO(2)-NPs with the same nanosize (30 nm) after prolonged exposure from L1-larvae to adult at environmental relevant concentra...

ژورنال: :محیط شناسی 2015
میرسجاد فخری اصغر اصغری مقدم مرتضی نجیب رحیم برزگر

نیترات از شایع ترین و عمده ترین آلاینده های غیرنقطه ای منابع آبی است. یکی از منابع اصلی تولید آن فعالیت های کشاورزی و استفاده از کودهای نیتروژنه است. به دلیل وفور فعالیت های کشاورزی در دشت مرند واقع در شمال غرب استان آذربایجان شرقی، میزان غلظت نیترات در منابع آبی این دشت بررسی شد. بدین منظور از 48 حلقه چاه عمیق و نیمه عمیق، قنات و چشمه در مهر 1391 نمونه برداری شد و در آزمایشگاه آب شناسی دانشگاه...

Journal: :Semantics and Linguistic Theory 2000

2016
Tao Wang Dong Zhang Lingling Dai Yinguang Chen Xiaohu Dai

Extensive use of nanoparticles (NPs) in consumer and industrial products has led to concerns about their potential environmental impacts; however, the influences of different NPs (e.g., nZVI (nano zero-valent iron), Ag NPs, Fe2O3 NPs and MgO NPs) on the anaerobic digestion of sludge have not yet been studied in depth. Additionally, a new guideline or the use of different NPs in the anaerobic di...

Journal: :Small 2011
Matthew S Shore Junwei Wang Aaron C Johnston-Peck Amy L Oldenburg Joseph B Tracy

Metal nanoparticles (NPs) are of great interest due to their special optical, [ 1–3 ] electronic, [ 4–8 ] and catalytic [ 9,10 ] properties. [ 11 ] Among metal NPs, Au NPs have been investigated most extensively because of their facile preparation, resistance to oxidation, and surface plasmon resonance (SPR) band that can absorb and scatter visible light. [ 3 ] Core/ shell and alloy bimetallic ...

Journal: :iranian journal of parasitology 0
hossein mahmoudvand research center for tropical and infectious diseases, kerman university of medical sciences, kerman, iran and leishmaniasis research center, kerman university of medical sciences, kerman, iran. mojtaba shakibaie pharmaceutics research center, institute of neuropharmacology, kerman university of medical sciences, kerman, iran. razieh tavakoli research center for tropical and infectious diseases, kerman university of medical sciences, kerman, iran. sareh jahanbakhsh research center for tropical and infectious diseases, kerman university of medical sciences, kerman, iran. iraj sharifi leishmaniasis research center, kerman university of medical sciences, kerman, iran.

background: sensitive and glucantime (ma) resistance leishmania tropica are referred to those isolates, which are responsive, or non-responsive to one or two full courses of treatment by ma systematically and/or intra-lesionally, respectively. in this study, we evaluated the antileishmanial activity of biogenic selenium nanoparticles (se nps) alone and in combination with ma against sensitive a...

Journal: :pharmaceutical and biomedical research 0
hamed barabadi department of pharmaceutics, faculty of pharmacy mazandaran university of medical sciences, sari, iran soheila honary department of pharmaceutics, faculty of pharmacy mazandaran university of medical sciences, sari, iran

biofabrication by using fungi is an exciting recent interest to develop an eco-friendly production of metallic nanoparticles (nps) for pharmaceutical applications. this study aimed to synthesize and characterize gold (au) and silver (ag) nps by using penicillium simplisimum. the fungus was grown in fluid czapek dox broth on shaker at 28 ºc and 200 rpm for ten days. then the supernatant was sepa...

Journal: :Nanomedicine 2014
Bharath Bangalore Rajeeva Ryan Menz Yuebing Zheng

The quest for early detection and treatment of diseases has led to intense research on theranostics [1]. With diagnosis and therapy combined onto a single platform, theranostics enables real-time monitoring of the status of disease treatment and allows for timely adjustment of type and dose of drugs, paving the way towards personalized medicine. The unique physiochemical properties of nanoparti...

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