نتایج جستجو برای: agnps

تعداد نتایج: 1823  

2016
Guoqing Wan Lingao Ruan Yu Yin Tian Yang Mei Ge Xiaodong Cheng

Acinetobacter baumannii resistance to carbapenem antibiotics is a serious clinical challenge. As a newly developed technology, silver nanoparticles (AgNPs) show some excellent characteristics compared to older treatments, and are a candidate for combating A. baumannii infection. However, its mechanism of action remains unclear. In this study, we combined AgNPs with antibiotics to treat carbapen...

2013
Pedro Jose Rivero Javier Goicoechea Aitor Urrutia Ignacio Raul Matias Francisco Javier Arregui

In the present study, we show that silver nanoparticles (AgNPs) with different shape, aggregation state and color (violet, green, orange) have been successfully incorporated into polyelectrolyte multilayer thin films using the layer-by-layer (LbL) assembly. In order to obtain colored thin films based on AgNPs is necessary to maintain the aggregation state of the nanoparticles, a non-trivial asp...

2012
Ji-Yeon Roh Hyun-Jeong Eom Jinhee Choi

In the present study, toxicity of silver nanoparticles (AgNPs) was investigated in the nematode, Caenohabditis elegans focusing on the upstream signaling pathway responsible for regulating oxidative stress, such as mitogen-activated protein kinase (MAPK) cascades. Formation of reactive oxygen species (ROS) was observed in AgNPs exposed C.elegans, suggesting oxidative stress as an important mech...

2017
Lucia Salvioni Elisabetta Galbiati Veronica Collico Giulia Alessio Svetlana Avvakumova Fabio Corsi Paolo Tortora Davide Prosperi Miriam Colombo

BACKGROUND The discovery of new solutions with antibacterial activity as efficient and safe alternatives to common preservatives (such as parabens) and to combat emerging infections and drug-resistant bacterial pathogens is highly expected in cosmetics and pharmaceutics. Colloidal silver nanoparticles (NPs) are attracting interest as novel effective antimicrobial agents for the prevention of se...

Journal: :Molecules 2015
Aleš Panáček Monika Smékalová Martina Kilianová Robert Prucek Kateřina Bogdanová Renata Večeřová Milan Kolář Markéta Havrdová Grażyna Anna Płaza Joanna Chojniak Radek Zbořil Libor Kvítek

The resistance of bacteria towards traditional antibiotics currently constitutes one of the most important health care issues with serious negative impacts in practice. Overcoming this issue can be achieved by using antibacterial agents with multimode antibacterial action. Silver nano-particles (AgNPs) are one of the well-known antibacterial substances showing such multimode antibacterial actio...

Journal: :Molecular medicine reports 2013
Xiaojing Sun Zhiming Wang Shengyong Zhai Yingwen Cheng Jie Liu Binbin Liu

The number of studies concerning silver nanoparticles (AgNPs) has increased, due in part to their potential uses for biomedical applications. These particles have been demonstrated in the elimination of the hepatitis B virus and the inhibition of the proliferation of various cancer cells in vivo and in vitro. Thus, studies on AgNPs may lead to a more efficacious and safer therapeutic approach f...

2016
Hongru Ma Jinfeng Zeng Steven Harrington Lei Ma Mingze Ma Xuhong Guo Yanqing Ma

Silver nanowires-silver nanoparticles-graphene nanosheets (AgNWs-AgNPs-GN) hybrid nanomaterials were fabricated through a hydrothermal method by using glucose as a green reducing agent. The charge carriers of AgNWs-AgNPs-GN passed through defect regions in the GNs rapidly with the aid of the AgNW and AgNP building blocks, leading to high electrical conductivity of electrically conductive adhesi...

Journal: :Molecules 2017
Rui Cai Gang Tao Huawei He Kai Song Hua Zuo Wenchao Jiang Yejing Wang

Silk sericin has great potential as a biomaterial for biomedical applications due to its good hydrophilicity, reactivity, and biodegradability. To develop multifunctional sericin materials for potential antibacterial application, a one-step synthesis method for preparing silver nanoparticles (AgNPs) modified on polydopamine-coated sericin/polyvinyl alcohol (PVA) composite films was developed. P...

2017
Manikandan Velu Jeong-Ho Lee Woo-Suk Chang Nanh Lovanh Yool-Jin Park Palaniyappan Jayanthi Velmurugan Palanivel Byung-Taek Oh

Metal nanoparticles obtained from green route are gaining significant prominence as a result of their potential applications in nanomedicine and material engineering. Overall metal nanoparticles studied, silver nanoparticles (AgNPs) clutch prominent place in nanoparticles research field. Herein, we have reported the green synthesis of Saccharum officinarum leaf biomass extract-mediated synthesi...

2016
Gwang-Seok Song Dai Soo Lee Ilho Kang Frank Wiesbrock

A novel method for preparing epoxy/silver nanocomposites was developed via the in situ formation of silver nanoparticles (AgNPs) within the epoxy resin matrix while using silver nanowires (AgNWs) as a conductive filler. The silver–imidazole complex was synthesized from silver acetate (AgAc) and 1-(2-cyanoethyl)-2-ethyl-4-methylimidazole (imidazole). AgNPs were generated in situ during the curin...

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