نتایج جستجو برای: agnps

تعداد نتایج: 1823  

2013
Sangiliyandi Gurunathan Jae Woong Han Vasuki Eppakayala Muniyandi Jeyaraj Jin-Hoi Kim

Silver nanoparticles (AgNPs) have been used as an antimicrobial and disinfectant agents. However, there is limited information about antitumor potential. Therefore, this study focused on determining cytotoxic effects of AgNPs on MDA-MB-231 breast cancer cells and its mechanism of cell death. Herein, we developed a green method for synthesis of AgNPs using culture supernatant of Bacillus funicul...

2013
A. I. El-Batal M. A. Amin Mona M.K. Shehata

Bacillus stearothermophilus culture supernatant was used for preparation of silver nanoparticles (AgNPs) by reduction of silver ions via nitrate reductase enzyme which was optimized using Response Surface Methodology (RSM).The optimized conditions for nitrate reductase activity were as follows; medium containing; (%) glucose: 0.1, peptone: 1, yeast extract: 0.4, KNO : 0.4 also, pH: 7.5, temp: 2...

2014
Roberto Vazquez-Muñoz Miguel Avalos-Borja Ernestina Castro-Longoria Rossana CN. Melo

Candida albicans is the most common fungal pathogen in humans, and recently some studies have reported the antifungal activity of silver nanoparticles (AgNPs) against some Candida species. However, ultrastructural analyses on the interaction of AgNPs with these microorganisms have not been reported. In this work we evaluated the effect of AgNPs on C. albicans, and the minimum inhibitory concent...

2014
Hui Qin Chen Zhu Zhiquan An Yao Jiang Yaochao Zhao Jiaxin Wang Xin Liu Bing Hui Xianlong Zhang Yang Wang

In tissue engineering, urine-derived stem cells are ideal seed cells and silver nanoparticles (AgNPs) are perfect antimicrobial agents. Due to a distinct lack of information on the effects of AgNPs on urine-derived stem cells, a study was conducted to evaluate the effects of silver ions and AgNPs upon the cytotoxicity and osteogenic differentiation of urine-derived stem cells. Initially, AgNPs ...

2017
Akanksha Raj Prasanna Shah Namita Agrawal

Silver nanoparticles (AgNPs) containing consumer products have been proliferating in the market due to its unique antimicrobial property, however, lack of in-depth knowledge about their potential effect on human health in a longer run is of great concern. Therefore, we investigated dose-dependent in vivo effect of AgNPs using Drosophila as a model system. Drosophila, a genetically tractable org...

2017
Rui Cai Gang Tao Huawei He Pengchao Guo Meirong Yang Chaoxiang Ding Hua Zuo Lingyan Wang Ping Zhao Yejing Wang

To develop silk sericin (SS) as a potential antibacterial biomaterial, a novel composite of polyelectrolyte multilayers (PEMs) coated sericin/poly(vinyl alcohol) (SS/PVA) film modified with silver nanoparticles (AgNPs) has been developed using a layer-by-layer assembly technique and ultraviolet-assisted AgNPs synthesis method. Ag ions were enriched by PEMs via the electrostatic attraction betwe...

2016
Sobhy I. I. Abdel-Hafez Nivien A. Nafady Ismail R. Abdel-Rahim Abeer M. Shaltout José-Antonio Daròs Mohamed A. Mohamed

Mycogenic synthesis of silver nanoparticles (AgNPs) was carried out in the present investigation using an aqueous extract of endophytic non-pathogenic Alternaria solani F10 (KT721914). The mycosynthesized AgNPs were characterized by means of spectroscopic and microscopic techniques. The surface plasmon resonance found at 430 nm confirmed the formation of stable AgNPs for several weeks at room t...

Journal: :Molecules 2018
Yugal Kishore Mohanta Debasis Nayak Kunal Biswas Sameer Kumar Singdevsachan Elsayed Fathi Abd Allah Abeer Hashem Abdulaziz A Alqarawi Dhananjay Yadav Tapan Kumar Mohanta

The present study demonstrates an economical and eco-friendly method for the synthesis of silver nanoparticles (AgNPs) using the wild mushroom Ganoderma sessiliforme. The synthesis of AgNPs was confirmed and the products characterized by UV-visible spectroscopy, dynamic light scattering spectroscopy and X-ray diffraction analysis. Furthermore, Fourier transform infrared spectroscopy (ATR-FTIR) ...

Journal: :Molecules 2016
Wenjie Jian Lu Zhang Ka-Chai Siu Angxin Song Jian-Yong Wu

Natural polysaccharides are the most widely used biopolymers for green synthesis of eco-friendly silver nanoparticles (AgNPs). In a previous study, a high molecular weight (MW) fraction of exopolysaccharides (EPS) produced by a medicinal fungus Cs-HK1 has been shown useful for green and facile synthesis of AgNPs in water. This study was to further evaluate the effects of molecular properties of...

2014
Pornanong Aramwit Nipaporn Bang Juthamas Ratanavaraporn Sanong Ekgasit

In this study, a 'green chemistry' approach was introduced to synthesize silk sericin (SS)-capped silver nanoparticles (AgNPs) under an alkaline condition (pH 11) using SS as a reducing and stabilizing agent instead of toxic chemicals. The SS-capped AgNPs were successfully synthesized at various concentrations of SS and AgNO3, but the yields were different. A higher yield of SS-capped AgNPs was...

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