نتایج جستجو برای: silver nanoparticles agnps

تعداد نتایج: 141492  

The purpose of this study was to expand a trouble free biological method for the synthesis of silver nanoparticles (AgNPs) using the leaves extract of Rosa ChinensisL. to act as reducing and stabilizing agent. Water soluble phytochemicals played a vital role for the reduction silver ions into silver nanoparticles. The leaves extract was exposed to silver ions and the resultant biosynthesized Ag...

Journal: :Nanomedicine : nanotechnology, biology, and medicine 2016
Krzysztof Tutaj Radoslaw Szlazak Katarzyna Szalapata Joanna Starzyk Rafal Luchowski Wojciech Grudzinski Monika Osinska-Jaroszuk Anna Jarosz-Wilkolazka Agnieszka Szuster-Ciesielska Wieslaw I Gruszecki

UNLABELLED High antifungal activity is reported, in comparison with commercially available products, of a novel hybrid system based on silver nanoparticles synthesized using a popular antifungal macrocyclic polyene amphotericin B (AmB) acting both as a reducing and stabilizing/capping agent. The synthesis reaction proceeds in an alkaline environment which prevents aggregation of AmB itself and ...

2014
Tahereh Ghaffari Fahimeh Hamedirad Baharak Ezzati

Background and aims. Polymethyl methacrylate, PMMA, is widely used in prosthodontics for fabrication of removable prostheses. This study was undertaken to investigate the effect of adding silver nanoparticles (AgNPs) to PMMA at 2% and 0.2% concentrations on compressive and tensile strengths of PMMA. Materials and methods. The silver nanoparticles were mixed with heat-cured acrylic resin in an a...

2015

Previosuly, we reported the cytotoxic effect of colloidal silver (AgC) on MCF-7 breast cancer cell line. However, there is scarce information on its antitumor potential. The aim of this study was to evaluate the anti-tumoral activity of colloidal silver (AgC) or silver nanoparticles (AgNPs) in a B16F10 melanoma mice model. In vitro, B16F10 cells were treated with different concentrations of AgC...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2015
Donald S Anderson Esther S Patchin Rona M Silva Dale L Uyeminami Arjun Sharmah Ting Guo Gautom K Das Jared M Brown Jonathan Shannahan Terry Gordon Lung Chi Chen Kent E Pinkerton Laura S Van Winkle

The growing use of silver nanoparticles (AgNPs) in consumer products raises concerns about potential health effects. This study investigated the persistence and clearance of 2 different size AgNPs (20 and 110 nm) delivered to rats by single nose-only aerosol exposures (6 h) of 7.2 and 5.4 mg/m(3), respectively. Rat lung tissue was assessed for silver accumulations using inductively-coupled plas...

Journal: :international journal of nano dimension 0
hilal ahmad department of biotechnology, school of life sciences, vels university (vistas) chennai-600117 india. kalyanaraman rajagopal department of biotechnology, school of life sciences, vels university (vistas) chennai-600117 india. ashiq hussain shah coet, baba ghulam shah badshah university, rajouri, jammu & kashmir – 18513 india.

silver nanoparticles (agnps) are amongst the most investigated materials in nanotechnology in view of their unique physio-chemical features and applications in restorative science. their progressive usages in different fields of science besides some predominant restrictions with conventional methods for their synthesis have demanded analysts to discover green courses for their creation. biologi...

2016
Paolo Prosposito Federico Mochi Erica Ciotta Mauro Casalboni Fabio De Matteis Iole Venditti Laura Fontana Giovanna Testa Ilaria Fratoddi

Due their excellent chemo-physical properties and ability to exhibit surface plasmon resonance, silver nanoparticles (AgNPs) have become a material of choice in various applications, such as nanosensors, electronic devices, nanobiotechnology and nanomedicine. In particular, from the environmental monitoring perspective, sensors based on silver nanoparticles are in great demand because of their ...

Journal: :Journal of microbiology, immunology, and infection = Wei mian yu gan ran za zhi 2018
Bogusław Buszewski Viorica Railean-Plugaru Paweł Pomastowski Katarzyna Rafińska Malgorzata Szultka-Mlynska Patrycja Golinska Magdalena Wypij Dariusz Laskowski Hanna Dahm

BACKGROUND/PURPOSE In this study, an acidophilic actinobacteria strain was used as a novel reducing agent for a single-step synthesis of nanostructure silver particles. We used a Streptacidiphilus durhamensis HGG16n isolate for efficient synthesis of bioactive silver nanoparticles [bio(AgNPs)] in an inexpensive, eco-friendly, and nontoxic manner. The obtained bio(AgNPs) exhibited unique physico...

2016
Lu Wen Pei Zeng Liping Zhang Wenli Huang Hui Wang Gang Chen

In this study, silver nanoparticles (AgNPs) were synthesized for the first time using an antibacterial endophytic fungus of Chinese medicinal herb Orchidantha chinensis, which has anti-inflammatory and antimicrobial activities. The AgNPs were analyzed by various characterization techniques to reveal their morphology, chemical composition, and stability. Also, the relationship between Chinese me...

2014
Namita Soni Soam Prakash

Here, we have used the green method for synthesis of silver and gold nanoparticles. In the present study the silver (Ag) and gold (Au) nanoparticles (NPs) were synthesized by using the aqueous bark extract of Indian spice dalchini (Cinnamomum zeylanicum) (C. zyelanicum or C. verum J. Presl). Additionally, we have used these synthesized nanoparticles for mosquito control. The larvicidal activity...

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