显示 1-30 共 85 条结果 关于 "GF48834311"
Nanobio silver: its interactions with peptides and bacteria, and its uses in medicine.
Sonja Eckhardt et al.
Chemical reviews, 113(7), 4708-4754 (2013-03-16)
M Yazdimamaghani et al.
Journal of biomedical nanotechnology, 10(6), 911-931 (2014-04-23)
A new composition of gelatin/bioactive-glass/silver nanoparticle was synthesized and employed to prepare antibacterial macroporous scaffolds with potential applications in bone tissue engineering. A set of macroporous nanocomposite scaffolds were developed from an aqueous solution of gelatin by freeze-drying and crosslinking...
Elizabeth I Maurer et al.
Nanotoxicology, 8(7), 718-727 (2013-07-16)
In the field of toxicology of nanomaterials, scientists have not clearly determined if the observed toxicological events are due to the nanoparticles (NPs) themselves or the dissolution of ions released into the biophysiological environment or both phenomenon participate in combination...
Svitlana Chernousova et al.
Angewandte Chemie (International ed. in English), 52(6), 1636-1653 (2012-12-21)
The antibacterial action of silver is utilized in numerous consumer products and medical devices. Metallic silver, silver salts, and also silver nanoparticles are used for this purpose. The state of research on the effect of silver on bacteria, cells, and...
Hongyan Zhao et al.
Journal of nanoscience and nanotechnology, 14(6), 4357-4362 (2014-04-18)
The influence of 12 nm spherical silver nanoparticles (AgNPs) and 20 nm spherical gold nanoparticles (AuNPs) on the luminescence of europium complex Eu(TTFA)3 were studied. When 350 nm is chosen as the incident light, the maximum enhancement factor of the...
M Baalousha et al.
The Science of the total environment, 502, 344-353 (2014-09-30)
Silver nanoparticles (Ag NPs) are susceptible to transformations in environmental and biological media such as aggregation, oxidation, dissolution, chlorination, sulfidation, formation/replacement of surface coatings following interaction with natural organic matter (NOM). This paper investigates the impact of surface coating and...
Amin Majdalawieh et al.
Journal of nanoscience and nanotechnology, 14(7), 4757-4780 (2014-04-25)
In the last decade, gold and silver nanomaterials have received considerable attention due to their attractive electronic and chemical properties and their potential applications in the development of new technologies. Recent advances in the study of various gold and silver...
Takuya Nishioka et al.
Ultrasonics, 57, 84-89 (2014-12-04)
A thermophone is a thermoacoustic transducer, which generates sound via time-varying Joule heating of an electrically conductive layer, which leads to expansion and contraction of a small pocket of air near the surface of the film. In this work, a...
Swapna A Gudipaty et al.
Biochimica et biophysica acta, 1844(9), 1656-1661 (2014-06-21)
The Cus system of Escherichia coli aids in protection of cells from high concentrations of Ag(I) and Cu(I). The histidine kinase CusS of the CusRS two-component system functions as a Ag(I)/Cu(I)-responsive sensor kinase and is essential for induction of the...
Swarup Roy et al.
Journal of nanoscience and nanotechnology, 14(7), 4899-4905 (2014-04-25)
Binding interaction of biologically synthesized silver nanoparticles with bovine serum albumin (BSA) has been investigated by UV-Vis and fluorescence spectroscopic techniques. UV-Vis analysis implies the formation of the ground state complex between BSA and silver nanoparticles. The analysis of fluorescence...
Ana López-Serrano Oliver et al.
Environmental pollution (Barking, Essex : 1987), 189, 87-91 (2014-03-20)
Silver nanoparticles (AgNPs) are widely used in many applications and likely released into the aquatic environment. There is increasing evidence that Ag is efficiently delivered to aquatic organisms from AgNPs after aqueous and dietary exposures. Accumulation of AgNPs through the...
Florian Mallevre et al.
Environmental pollution (Barking, Essex : 1987), 195, 218-225 (2014-09-28)
Bacteria based ecotoxicology assessment of manufactured nanoparticles is largely restricted to Escherichia coli bioreporters in laboratory media. Here, toxicity effects of model OECD nanoparticles (Ag NM-300K, ZnO NM-110 and TiO2 NM-104) were assessed using the switch-off luminescent Pseudomonas putida BS566::luxCDABE...
S R Mueller-Spitz et al.
Letters in applied microbiology, 58(4), 330-337 (2013-11-30)
Polycyclic aromatic hydrocarbons (PAH) are a common environmental contaminant originating from both anthropogenic and natural sources. Mycobacterium species are highly adapted to utilizing a variety of PAH. Silver nanoparticles (AgNP) are an emerging contaminant that possess bactericidal properties, interferes with...
Yu Sun et al.
Journal of nanoscience and nanotechnology, 14(6), 4481-4485 (2014-04-18)
The fluorescence enhancement effect of Rh6G molecules deposited on the silver film substrate decorated with nanohole arrays was investigated in this paper. The prepared substrate, decorated with nanohole arrays, was fabricated with the deposition of silver films onto the anodic...
Cheng-Kuan Su et al.
Toxicology letters, 227(2), 84-90 (2014-04-08)
With the increasing prevalence of silver nanoparticles (AgNPs) in various products, whether such AgNPs will introduce new injury mechanisms from new pathologies remains to be determined. From the toxicokinetic viewpoint, it is vital to have in-depth knowledge of their in...
Alexandros Besinis et al.
Nanotoxicology, 8(7), 745-754 (2013-07-24)
The survival of pathogenic bacteria in the oral cavity depends on their successful adhesion to dental surfaces and their ability to develop into biofilms, known as dental plaque. Bacteria from the dental plaque are responsible for the development of dental...
Cherrie M Whiteley et al.
Environmental science. Processes & impacts, 15(11), 2050-2058 (2013-09-24)
There are significant challenges in assessing the fate and exposure of nanoparticles (NPs) in the environment owing to the lack of information on their use, potential pathways and sinks in the environment. In order to better understand the environmental exposure...
Dawei Guo et al.
Journal of biomedical nanotechnology, 10(4), 669-678 (2014-04-17)
Several studies have suggested that silver nanoparticles (AgNPs) have the potential to treat human cancers, including leukemia. However, the detailed cellular mechanisms for AgNPs to inhibit the growth of leukemic cells and their efficacy on clinical isolates of leukemic patients...
Hongjun Liu et al.
Journal of water and health, 12(4), 670-677 (2014-12-05)
Pathogenic bacteria are one of the main reasons for worldwide water-borne disease causing a big threat to public health, hence there is an urgent need to develop cost-effective water treatment technologies. Nano-materials in point-of-use systems have recently attracted considerable research...
Yang Liu et al.
Chemosphere, 112, 282-288 (2014-07-23)
Metals are always found in the environment as mixtures rather than as solitary elements. However, effect models such as biotic ligand models (BLMs) are usually derived for toxicity prediction of single metals. Our study aimed at predicting mixture toxicity of...
Merel J C van der Ploeg et al.
Environmental toxicology and chemistry, 33(4), 743-752 (2013-12-10)
The impact of silver nanoparticles (AgNP; at 0 mg Ag/kg, 1.5 mg Ag/kg, 15.4 mg Ag/kg, and 154 mg Ag/kg soil) and silver nitrate (AgNO3 ; 15.4 mg Ag/kg soil) on earthworms, Lumbricus rubellus, was assessed. A 4-wk exposure to...
Junpeng Shi et al.
Toxicology letters, 229(1), 17-24 (2014-06-10)
Humans face the risk of exposure to silver nanoparticles (AgNPs) due to their extensive application in consumer products. AgNPs can interact with many substances in the human body due to their chemically unstable nature and high activity properties, which might...
Maria C Siqueira et al.
Journal of nanoscience and nanotechnology, 14(7), 5512-5517 (2014-04-25)
In this study, silver nanoparticles were prepared and incorporated into carboxymethylcellulose films to evaluate the antimicrobial activity for food packaging applications. The techniques carried out for material characterization were: infrared spectroscopy and thermal analysis for the silver nanoparticles and films...
Jaya Sundaram et al.
International journal of food microbiology, 167(1), 67-73 (2013-06-29)
A biopolymer encapsulated with silver nanoparticles was prepared using silver nitrate, polyvinyl alcohol (PVA) solution, and trisodium citrate. It was deposited on a mica sheet to use as SERS substrate. Fresh cultures of Salmonella Typhimurium, Escherichia coli, Staphylococcus aureus and...
Yugang Sun
Nanoscale, 2(9), 1626-1642 (2010-09-08)
This feature article reviews the synthesis and application of silver nanowires with the focus on a polyol process that is capable of producing high quality silver nanowires with high yield. The as-synthesized silver nanowires can be used as both physical...
Su-juan Yu et al.
Environmental science. Processes & impacts, 15(1), 78-92 (2013-01-01)
Silver nanoparticles (AgNPs) are well known for their excellent antibacterial ability and superior physical properties, and are widely used in a growing number of applications ranging from home disinfectants and medical devices to water purificants. However, with the accelerating production...
A Barkhordari et al.
The international journal of occupational and environmental medicine, 5(3), 164-168 (2014-07-17)
Nanoparticles have become one of the leading technologies over the past two years. The extensive use of nanoparticles has raised great concern about their occupational fate and biological effects. With an increase in the production and use of nanomaterial, it...
Subin Poulose et al.
Journal of nanoscience and nanotechnology, 14(2), 2038-2049 (2014-04-23)
Metal nanoparticles have unique optical, electronic, and catalytic properties. There exist well-defined physical and chemical processes for their preparation. Those processes often yield small quantities of nanoparticles having undesired morphology, and involve high temperatures for the reaction and the use...
Sisi Liu et al.
Journal of nanoscience and nanotechnology, 14(6), 4608-4614 (2014-04-18)
Position-configurable, reproducible, vertically aligned nanosheets assemblies (ANAs) arrays are fabricated by polymer-templated electrodeposition method at room temperature. Here, nanoimprint lithography is utilized to fabricate polymer template on the fluorine-doped tin oxide substrate for the purpose of evenly tuning the location...
Susanne Sütterlin et al.
Applied and environmental microbiology, 80(22), 6863-6869 (2014-08-17)
Members of the Enterobacteriaceae with extended-spectrum beta-lactamases (ESBLs) of the CTX-M type have disseminated rapidly in recent years and have become a threat to public health. In parallel with the CTX-M type expansion, the consumption and widespread use of silver-containing...

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