نتایج جستجو برای: AgNPs.‎

تعداد نتایج: 1823  

2017
Yinbo Peng Chenlu Song Chuanfeng Yang Qige Guo Min Yao

Silver nanoparticles (AgNPs) are being widely applied as topical wound materials; however, accumulated deposition of silver in the liver, spleen, and other main organs may lead to organ damage and dysfunction. We report here that low molecular weight chitosan-coated silver nanoparticles (LMWC-AgNPs) are effective against methicillin-resistant Staphylococcus aureus (MRSA), have better biocompati...

2015
Akira Onodera Fumiko Nishiumi Kisa Kakiguchi Atsushi Tanaka Nami Tanabe Aki Honma Katsutoshi Yayama Yasuo Yoshioka Kumiko Nakahira Shigenobu Yonemura Itaru Yanagihara Yasuo Tsutsumi Yuichi Kawai

Silver nanoparticles (AgNPs) induce the production of reactive oxygen species (ROS) and apoptosis. These effects are enhanced by smaller particles. Using live-cell imaging, we show that AgNPs induced ROS production rapidly in a size-dependent manner after exposure of cells to 70-nm and 1-nm AgNPs (AgNPs-70, AgNPs-1), but not AgNO3. Exposure of cells to 5 μg/mL each of AgNPs-70, AgNPs-1 or AgNO3...

2016
Karolina Niska Narcyz Knap Anna Kędzia Maciej Jaskiewicz Wojciech Kamysz Iwona Inkielewicz-Stepniak

Objectives: In dentistry, silver nanoparticles (AgNPs) have drawn particular attention because of their wide antimicrobial activity spectrum. However, controversial information on AgNPs toxicity limited their use in oral infections. Therefore, the aim of the present study was to evaluate the antibacterial activities against a panel of oral pathogenic bacteria and bacterial biofilms together wit...

2016
Sumaira Anjum Bilal Haider Abbasi

Green synthesis of silver nanoparticles (AgNPs) by using plants is an emerging class of nanobiotechnology. It revolutionizes all domains of medical sciences by synthesizing chemical-free AgNPs for various biomedical applications. In this report, AgNPs were successfully synthesized by using whole plant extract (WPE) and thidiazuron-induced callus extract (CE) of Linum usitatissimum. The phytoche...

Journal: :Journal of applied toxicology : JAT 2014
Alicia Avalos Ana Isabel Haza Diego Mateo Paloma Morales

Silver nanoparticles (AgNPs), which have well-known antimicrobial properties, are extensively used in various medical and general applications. In spite of the widespread use of AgNPs, relatively few studies have been undertaken to determine the cytotoxic effects of AgNPs. The aim of this study was investigate how AgNPs of different sizes (4.7 and 42 nm) interact with two different tumoral huma...

2014
Muthusamy Govarthanan Thangasamy Selvankumar Koildhasan Manoharan Rajiniganth Rathika Kuppusamy Shanthi Kui-Jae Lee Min Cho Seralathan Kamala-Kannan Byung-Taek Oh

Synthesis of silver nanoparticles (AgNPs) with biological properties is of vast significance in the development of scientifically valuable products. In the present study, we describe simple, unprecedented, nontoxic, eco-friendly, green synthesis of AgNPs using an Indian traditional farming formulating agent, panchakavya. Silver nitrate (1 mM) solution was mixed with panchakavya filtrate for the...

2015
YounJung Jung Chang-Beom Park Youngjun Kim Sanghun Kim Stephan Pflugmacher Seungyun Baik Mónica Amorim

Four different manufactured surface-coated silver nanoparticles (AgNPs) with coating of citrate, tannic acid, polyethylene glycol, and branched polyethylenimine were used in this study. The toxicity of surface-coated AgNPs was evaluated by a luminous microbial array for toxicity risk assessment (LumiMARA) using multi-species of luminescent bacteria. The salt stability of four different AgNPs wa...

2014
Wenjie Sun Ding Qu Yihua Ma Yan Chen Congyan Liu Jing Zhou

Silver nanoparticles (AgNPs) are widely used as antibacterial products in various fields. Recent studies have suggested that AgNPs need an appropriate stabilizer to improve their stability. Some antibacterial traditional Chinese medicines (TCMs) contain various reductive components, which can not only stabilize AgNPs but also enhance their antimicrobial activity. In this study, we developed a s...

2018
Magdalena Wypij Joanna Czarnecka Magdalena Świecimska Hanna Dahm Mahendra Rai Patrycja Golinska

We report synthesis of silver nanoparticles (AgNPs) from Streptomyces xinghaiensis OF1 strain, which were characterised by UV-Vis and Fourier transform infrared spectroscopy, Zeta sizer, Nano tracking analyser, and Transmission electron microscopy. The antimicrobial activity of AgNPs alone, and in combination with antibiotics was evaluated against bacteria, namely Escherichia coli, Pseudomonas ...

2015
Sangiliyandi Gurunathan Jae-Kyo Jeong Jae Woong Han Xi-Feng Zhang Jung Hyun Park Jin-Hoi Kim

Silver nanoparticles (AgNPs) are prominent group of nanomaterials and are recognized for their diverse applications in various health sectors. This study aimed to synthesize the AgNPs using the leaf extract of Artemisia princeps as a bio-reductant. Furthermore, we evaluated the multidimensional effect of the biologically synthesized AgNPs in Helicobacter pylori, Helicobacter felis, and human lu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید