نتایج جستجو برای: chitosan iron oxide

تعداد نتایج: 322241  

Journal: :Antibiotics 2021

Resistance of Candida species to conventional therapies has motivated the development antifungal nanocarriers based on iron oxide nanoparticles (IONPs) coated with chitosan (CS). This study evaluates effects IONPs-CS as carriers miconazole (MCZ) or fluconazole (FLZ) microcosm biofilms. Pooled saliva from two healthy volunteers supplemented C. albicans and glabrata was inoculum for biofilm forma...

Introduction: The use of plants is one of the most effective methods for the synthesis of nanoparticles based on green chemistry. The magnetic properties of nanoparticles let the attached drugs conduct by a magnetic field in the body. This study aimed to use the magnetic iron oxide nanoparticles synthesized via green chemistry as a carrier for the chloramphenicol drug delivery system.   Materi...

2010
Wenshui Xia Ping Liu Jiali Zhang Jie Chen

Chitosan and its oligosaccharides, which are known to possess multiple functional properties, have attracted considerable interest due to their biological activities and potential applications in the food, pharmaceutical, agricultural and environmental industries. Many researchers have focused on chitosan as a potential source of bioactive materials in the past few decades. This review focuses ...

Journal: :Carbohydrate polymer technologies and applications 2021

Bilayer films that combine chitosan and alginate, two natural polysaccharides, magnetic iron oxide nanoparticles (MNPs) were obtained. Physical microscopic observations revealed alginate interact strongly through their surfaces, which is attributed to the formation of a polyelectrolyte complex at interface. The diameter individual MNPs was about 10 nm, although in they appear arranged clusters ...

Journal: :journal of medicinal plants and by-products 0

zinc and iron nano-oxides (100 ppb) were promoted the hypericin and hyperforin production in hypericum perforatum cell suspension culture. high performance liquid chromatography method was used for detectection and identification of hypericin and hyperforin in h. perfuratum cell suspension cultures elicited with different concentrations of zinc and iron nano-oxide (0, 50, 100 and 150 ppb) after...

2000
She-Tin Wong Jyh-Fu Lee Soofin Cheng Chung-Yuan Mou

Our study focuses on the structural evolution of MCM-41-supported iron oxide under the reducing environment of catalyst pretreatment and ethylbenzene dehydrogenation reaction. Powder X-ray diffraction (XRD) analysis showed that the iron oxide is well-dispersed on the surface of the support with no detectable diffraction peaks from iron oxide. X-ray absorption near edge structure (XANES) study i...

2012
Kefeng Ni Xu Zhou Li Zhao Hualei Wang Yuhong Ren Dongzhi Wei

The magnetic chitosan nanocomposites have been studied intensively and been used practically in various biomedical and biological applications including enzyme immobilization. However, the loading capacity and the remained activity of immobilized enzyme based on existing approaches are not satisfied. Simpler and more effective immobilization strategies are needed. Here we report a simple catech...

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0
میترا بختیاری دانشجوی دکتری زراعت، دانشگاه آزاد اسلامی، واحد شهر قدس پیام معاونی استادیار ،گروه زراعت ، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد شهرقدس بهزاد ثانی استادیار، مدیر گروه زراعت، دانشکده کشاورزی، دانشگاه آزاد اسلامی، واحد شهر قدس

this experiment was done to evaluate the effect of nano iron oxide on some morphophysiological traits  of wheat (triticum aestivum l.) at  shahr-e qods region  in years of 2013 and 2014. experimental design, was factorial in a randomized complete block with four replications. treatments included, treatment of date of nano iron sparaying in milky  and pasty stage and another treatment was, conce...

2017
Reyhaneh Kheiri Mohammad Kazem Koohi Goudarz Sadeghi-Hashjin Hadiseh Nouri Noushin Khezli Mohsen Aghamohammad Hassan Fatemeh Hoomani Gholamreza Shams Ali Rasouli Majid Motaghinejad

Iron oxide is an important biological agent that has a key role in medical processes; however, the mechanism whereby it provides iron for human and animal cells and its biological uses remains unclear. We aimed to evaluate the effects of oral iron oxide on serum iron status and compare the results with those of iron sulfate as a reference salt. Fifteen adult rabbits were divided into 3 groups o...

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