نتایج جستجو برای: agnps

تعداد نتایج: 1823  

2016
Mohamed Ghareib Medhat Abu Tahon Mona Mostafa Saif Wafaa El-Sayed Abdallah

The development of green approaches for the biosynthesis of silver nanoparticles (AgNPs) is of prime significance in the field of nanotechnology research. A fast and eco-friendly protocol for the biosynthesis of extracellular AgNPs using culture supernatant (CS) from the fungus Cunninghamella phaeospora was studied in this work. This CS was proved as a potential new source for the extracellular...

2017
Masood Adibhesami Malahat Ahmadi Amir Abbas Farshid Farshid Sarrafzadeh-Rezaei Bahram Dalir-Naghadeh

The microorganisms have been noted as the main cause of delayed wound healing. The most common pathogen causing the wound infections is Staphylococcus aureus. Silver nanoparticles (AgNPs) show ample antibacterial activities. In the present study, the effect of AgNPs on mouse wounds inoculated with S. aureus was investigated. Sixty male mice (20 to 30 g) were anesthetized, full-thickness skin wo...

2012
Carolina Alves dos Santos Angela Faustino Jozala Adalberto Pessoa Jr Marcelo Martins Seckler

BACKGROUND Silver nanoparticles (AgNps) have attracted much interest in biomedical engineering, since they have excellent antimicrobial properties. Therefore, AgNps have often been considered for incorporation into medical products for skin pathologies to reduce the risk of contamination. This study aims at evaluating the antimicrobial effectiveness of AgNps stabilized by pluronic™ F68 associat...

2017
Shariq Qayyum Mohammad Oves Asad U. Khan

Mangifera indica inflorescence aqueous extract was utilized for production of green AgNPs. Synthesized AgNPs were characterized by UV-vis spectrophotometry, XRD, TEM, FESEM and particles size analyzer. AgNPs showed minimum inhibitory concentrations (MICs) of 8 μg ml-1 and 16 μg ml-1 for Gram negative (K. pneumoniae, P. aeruginosa and E. coli) and Gram positive (S. mutans and S. aureus) strains,...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2015
Leonardo Gutierrez Cyril Aubry Mauricio Cornejo Jean-Philippe Croue

Fate and transport studies of silver nanoparticles (AgNPs) discharged from urban wastewaters containing effluent organic matter (EfOM) into natural waters represent a key knowledge gap. In this study, EfOM interfacial interactions with AgNPs, and their aggregation kinetics were investigated by atomic force microscopy (AFM) and time-resolved dynamic light scattering (TR-DLS), respectively. Two w...

2016
Pawinee Siritongsuk Nuttaya Hongsing Saengrawee Thammawithan Sakda Daduang Sompong Klaynongsruang Apichai Tuanyok Rina Patramanon

Silver nanoparticles (AgNPs) have a strong antimicrobial activity against a variety of pathogenic bacteria. The killing mechanism of AgNPs involves direct physical membrane destruction and subsequent molecular damage from both AgNPs and released Ag+. Burkholderia pseudomallei is the causative agent of melioidosis, an endemic infectious disease primarily found in northern Australia and Southeast...

Journal: :Environmental science & technology 2013
Jing Wang Yeonjong Koo Anne Alexander Yu Yang Samantha Westerhof Qingbo Zhang Jerald L Schnoor Vicki L Colvin Janet Braam Pedro J J Alvarez

The increasing likelihood of silver nanoparticle (AgNP) releases to the environment highlights the importance of understanding AgNP interactions with plants, which are cornerstones of most ecosystems. In this study, poplars (Populus deltoides × nigra) and Arabidopsis thaliana were exposed hydroponically to nanoparticles of different sizes (PEG-coated 5 and 10 nm AgNPs, and carbon-coated 25 nm A...

2015
Pannerselvam Balashanmugam Pudupalayam Thangavelu Kalaichelvan

The present study reports the green synthesis of silver nanoparticles (AgNPs) from silver precursor using a plant biomaterial, Cassia roxburghii DC., aqueous extract. The AgNPs were synthesized from the shade-dried leaf extract and assessed for their stability; they elucidated characteristics under UV-visible spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, high-resolut...

2014
Kasi Murugan Balakrishnan Senthilkumar Duraisamy Senbagam Saleh Al-Sohaibani

The immense potential of nanobiotechnology makes it an intensely researched field in modern medicine. Green nanomaterial synthesis techniques for medicinal applications are desired because of their biocompatibility and lack of toxic byproducts. We report the toxic byproducts free phytosynthesis of stable silver nanoparticles (AgNPs) using the bark extract of the traditional medicinal plant Acac...

2016
Mi Jin Lee Seung Jun Lee Su Jin Yun Ji-Young Jang Hangoo Kang Kyongmin Kim In-Hong Choi Sun Park

The silver nanoparticle (AgNP) is a candidate for anticancer therapy because of its effects on cell survival and signaling. Although numerous reports are available regarding their effect on cell death, the effect of AgNPs on metabolism is not well understood. In this study, we investigated the effect of AgNPs on glucose metabolism in hepatoma cell lines. Lactate release from both HepG2 and Huh7...

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