نتایج جستجو برای: nano silver

تعداد نتایج: 94611  

Journal: :international journal of reproductive biomedicine 0
mohammad ebrahim baki sayyed mohsen miresmaili majid pourentezari esmail amraii vahid yousefi hamid reza spenani

background: nano-particles are extensively employed in most industries. several studies have been started to explore the probable detrimental effects of nano-particles on human reproduction. however, there is insufficient and controversially evident of effects of silver nano-particles on sperm parameters and other reproductive indices. objective: investigation of the effects of silver nano-part...

Journal: :international journal of advanced biological and biomedical research 0
saeide saeidi infectious disease and tropical medicine research center, zahedan university of medical sciences, zahedan, ir iran fereshteh javadian zabol medicinal plant research center, zabol, iran zahra sepehri zabol university of medical sciences, zabol, iran zahra shahi department of biology, faculty of sciences, science and research branch, islamic azad university, kerman, ir iran fahime mousavi graduated student of plant breeding, college of agriculture, university of zabol, zabol, iran mahmood anbari zabol university of medical sciences, zabol, iran

the aim study antibacterial effects of silver nanoparticles against resistant strains of e.coli bacteria.12 strains of e. coli strains arising urinary infection were isolated from hospitalized patient in zabolhospitals. minimum inhibitory concentration of winter cherry were determined by dilution method in various concentration on bacteria. the highest mic values was found to be 100ppm against ...

Journal: :Frontiers in microbiology 2016
Simone Belluco Carmen Losasso Ilaria Patuzzi Laura Rigo Daniele Conficoni Federica Gallocchio Veronica Cibin Paolo Catellani Severino Segato Antonia Ricci

Listeria monocytogenes is a serious foodborne pathogen that can contaminate food during processing and can grow during food shelf-life. New types of safe and effective food contact materials embedding antimicrobial agents, like silver, can play an important role in the food industry. The present work aimed at evaluating the in vitro growth kinetics of different strains of L. monocytogenes in th...

Journal: :Nanotoxicology 2012
Zhaowei Liu Tao Zhang Guogang Ren Zhuo Yang

The aim of this study was to investigate the actions of silver nanoparticles (nano-Ag) on glutamatergic synaptic transmission and excitability in hippocampal CA1 pyramidal neurons with whole cell patch technique. The amplitude of miniature excitatory postsynaptic currents (mEPSCs) was inhibited by silver nano-particles (nano-Ag) (10⁻⁵ g/ml and 10⁻⁴ g/ml), but the amplitude and frequency of spon...

2015
S Shahriar Hessami

The carnation (Dianthus caryophyllus) is one of the top-selling commercial cut-flower crops worldwide, which is very susceptible to infections. Micro propagation is an advanced biotechnological system for producing free of pathogen colonies. Too many factors may limit micro propagation of plants, which the most important of them is contamination (e.g., fungal, bacterial and viral infections). T...

Journal: :journal of dental research, dental clinics, dental prospects 0
tahereh ghaffari tabriz university of medical sciences, iran fahimeh hamedi-rad

background and aims. polymethyl methacrylate (pmma) is widely used for the fabrication of removable prostheses. silver nano-particles (agnps) have been added to pmma because of their antimicrobial properties, but their effect on the mechanical properties of pmma is unknown. the aim of this study was to investigate the effects of agnps on the tensile strength of pmma. materials and methods. for ...

2014
Shahin Kasraei Lida Sami Sareh Hendi Mohammad-Yousef AliKhani Loghman Rezaei-Soufi Zahra Khamverdi

OBJECTIVES Recurrent caries was partly ascribed to lack of antibacterial properties in composite resin. Silver and zinc nanoparticles are considered to be broad-spectrum antibacterial agents. The aim of the present study was to evaluate the antibacterial properties of composite resins containing 1% silver and zinc-oxide nanoparticles on Streptococcus mutans and Lactobacillus. MATERIALS AND ME...

Journal: :infection, epidemiology and medicine 0
bahareh bashardoust department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran shahla roudbar mohammadi department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran maryam roudbary department of parasitology and mycology, school of medical sciences, iran university of medical sciences, tehran, ir iran fateme nikoomanesh department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran

background: this study was performed to determine antifungal activity of silver nanoparticles (nano-ag) compared to voriconazole on clinical and standard strains of aspergillus fumigatus. materials and methods: inhibitory potency of nano-ag was determined using microtiter broth dilution method. susceptibility tests were performed against a. fumigatus isolated from bal (bronchoalveolar lavage) o...

A colour ink jet printing with improved water fastness property was produced by using of special component in the ink’s formulation. In this study, the water fastness of ink jet prints which used acrylic/nano-silver resin nano-composite ink instead of conventional resin in ink’s formulation was examined. The nano composite resin was prepared via miniemulsion polymerization of acrylate monomers ...

2012
DAGMARA MALINA AGNIESZKA SOBCZAK-KUPIEC ZBIGNIEW WZOREK ZYGMUNT KOWALSKI

The effect of poly(N-vinylpyrrolidone) (PVP) concentration on the synthesis and properties of silver nanoparticles (AgNPs) was investigated. Nanoparticles have been prepared by a chemical reduction method from the aqueous solution of silver nitrate and PVP as a stabilizing agent in the presence of sodium borohydride as a reducing agent. The nanosized silver colloids have been characterized usin...

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