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Showing 1-30 of 162 results for "204390" within Papers
Hyen-Wook Kang et al.
Journal of nanoscience and nanotechnology, 13(5), 3550-3553 (2013-07-19)
We fabricated a polymer-metal combined atomic force microscopy (AFM) probe by two steps; a polymeric resin was used at first step, and a metal-ion was used at second step which needs more fabricating time than the resin. At first step
Andrey Massarsky et al.
Comparative biochemistry and physiology. Toxicology & pharmacology : CBP, 159, 10-21 (2013-10-08)
Silver nanoparticles (AgNPs) are present in a multitude of consumer and medical products; however, the toxicity of AgNPs is not fully understood. This research aimed to elucidate the relationship between AgNP cytotoxicity and oxidative stress and damage in rainbow trout
Benjamin P Colman et al.
PloS one, 8(2), e57189-e57189 (2013-03-08)
A large fraction of engineered nanomaterials in consumer and commercial products will reach natural ecosystems. To date, research on the biological impacts of environmental nanomaterial exposures has largely focused on high-concentration exposures in mechanistic lab studies with single strains of
Tomonobu Ishida et al.
Organic letters, 15(4), 848-851 (2013-02-05)
Benzoxazine-2-one derivatives are important heterocycle structures because of their various pharmaceutical activities, though their synthetic methods had been limited. In some cases, toxic reagents, such as phosgene or carbon monoxide, are required. It was found that a silver catalyst successfully
R K Kar et al.
Pakistan journal of biological sciences : PJBS, 16(24), 1991-1996 (2014-02-13)
Regulation of stomatal aperture is crucial in terrestrial plants for controlling water loss and gaseous exchange with environment. While much is known of signaling for stomatal opening induced by blue light and the role of hormones, little is known about
Hu Tian et al.
International journal of clinical and experimental medicine, 8(4), 5794-5799 (2015-07-02)
Attributed to its antimicrobial effect, Silver nanoparticles (AgNPs) is widely used in various fields, such as biomedicine, textiles, health care products and food, etc. However, the antibacterial mechanism of AgNPs in staphylococcus aureus (S. aureus) by regulating sRNA expression remains
Vinod Vellora Thekkae Padil et al.
Carbohydrate polymers, 121, 468-476 (2015-02-11)
Electrospun nanofibre membranes from blend solutions of deacetylated gum kondagogu and polyvinyl alcohol of various weight proportions were prepared. The electrospun membrane was cross linked by heating at 150°C for 6h and later modified by methane plasma treatment. Membranes were
Min-Hwa Chang et al.
Nanoscale research letters, 9(1), 330-330 (2014-07-16)
Thin and long silver nanowires were successfully synthesized using the polyvinylpyrrolidone (PVP)-assisted polyol method in the presence of ionic liquids, tetrapropylammonium chloride and tetrapropylammonium bromide, which served as soft template salts. The first step involved the formation of Ag nanoparticles
Laura E Valenti et al.
Colloids and surfaces. B, Biointerfaces, 132, 71-77 (2015-06-30)
Silver-coated orthopedic implants and silver composite materials have been proposed to produce local biocidal activity at low dose to reduce post-surgery infection that remains one of the major contributions to the patient morbidity. This work presents the synthesis combined with
Taomin Huang et al.
Talanta, 147, 501-509 (2015-11-26)
To the best of our knowledge, this study is the first to successfully apply a novel, highly selective enrichment technique based on boronic acid-functionalized core-shell magnetic microspheres (BA-Fe3O4@SiO2-Au@mSiO2) with a large surface area and uniform pore size, to determine the
Wesam Salem et al.
International journal of medical microbiology : IJMM, 305(1), 85-95 (2014-12-04)
Vibrio cholerae and enterotoxic Escherichia coli (ETEC) remain two dominant bacterial causes of severe secretory diarrhea and still a significant cause of death, especially in developing countries. In order to investigate new effective and inexpensive therapeutic approaches, we analyzed nanoparticles
Perrine Cheviron et al.
Carbohydrate polymers, 134, 635-645 (2015-10-03)
The present work reports a strategy involving the preparation of nanostructured starch based film containing silver nanoparticles (AgNPs) using a completely green chemistry process. The nanocomposite films were prepared by solution cast process. The AgNPs were in situ generated inside
Mrinal Dutta et al.
ACS nano, 9(7), 6891-6899 (2015-07-15)
We report on an efficient hybrid Si nanocrystal quantum dot modified radial p-n junction thinner Si solar cell that utilizes the advantages of effective exciton collection by energy transfer from nanocrystal-Si (nc-Si) quantum dots to underlying radial p-n junction Si
Isaac Asiamah et al.
Bioorganic & medicinal chemistry, 23(21), 7007-7014 (2015-10-07)
Nordihydroguaiaretic acid (NDGA) is a natural polyphenol with a broad spectrum of pharmacological properties. However, its usefulness is hindered by the lack of understanding of its pharmacological and toxicological pathways. Previously we showed that oxidative cyclisation of NDGA at physiological
Kohsuke Mori et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(33), 11885-11893 (2015-07-17)
Color-controlled spherical Ag nanoparticles (NPs) and nanorods, with features that originate from their particle sizes and morphologies, can be synthesized within the mesoporous structure of SBA-15 by the rapid and uniform microwave (MW)-assisted alcohol reduction method in the absence or
Xuan Liu et al.
Nanoscale, 9(40), 15390-15396 (2017-10-05)
Rapid detection of surface enhanced Raman scattering (SERS) signals is in great demand in the fields of biological medicine and environmental monitoring. Herein, a grooved silver nanoplate assembly (GSNA) with an abundance of multiscale gaps has been proposed for the
Tao Xu et al.
Organic letters, 14(21), 5416-5419 (2012-10-24)
A silver-catalyzed intramolecular oxidative aminofluorination of alkynes has been developed by using NFSI as a fluorinating reagent. This reaction represents an efficient method for the synthesis of various 4-fluoroisoquinolines and 4-fluoropyrrolo[α]isoquinolines.
Kamna Singh et al.
Journal of bacteriology, 197(15), 2545-2557 (2015-05-28)
In bacteria, copper homeostasis is closely monitored to ensure proper cellular functions while avoiding cell damage. Most Gram-positive bacteria utilize the copYABZ operon for copper homeostasis, where copA and copB encode copper-transporting P-type ATPases, whereas copY and copZ regulate the
Chia-Yun Chen et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(3), 540-545 (2014-12-19)
Metal-assisted chemical etching (MaCE) on silicon (Si)-mediated by polyvinylpyrrolidone (PVP)-is systematically investigated herein. It is found that the morphologies and crystallographic natures of the grown silver (Ag) dendrites can be significantly modulated, with the presence of PVP in the MaCE
Mohammad Ali et al.
Materials science & engineering. C, Materials for biological applications, 58, 359-365 (2015-10-20)
Unlike chemical synthesis, biological synthesis of nanoparticles is gaining tremendous interest, and plant extracts are preferred over other biological sources due to their ample availability and wide array of reducing metabolites. In this project, we investigated the reducing potential of
Jing-Kun Yan et al.
Carbohydrate polymers, 97(2), 391-397 (2013-08-06)
A facile, simple, and eco-friendly method using 4-acetamido-2,2,6,6-tetramethypiperidine-1-oxyl radical-oxidized curdlan (Oc) as both reducing and stabilizing agents was developed for the fabrication of silver nanoparticles (AgNPs) from silver nitrate (AgNO₃). The structure, morphology, and particle size of the as-prepared AgNPs
Nikunj Mapara et al.
Applied microbiology and biotechnology, 99(24), 10655-10667 (2015-09-13)
Pseudomonas aeruginosa is a leading opportunistic pathogen and its expanding drug resistance is a growing menace to public health. Its ubiquitous nature and multiple resistance mechanisms make it a difficult target for antimicrobial chemotherapy and require a fresh approach for
Caroline Le Maréchal et al.
Veterinary research, 42, 35-35 (2011-02-18)
Staphylococcus aureus is a major cause of mastitis in ruminants. In ewe mastitis, symptoms range from subclinical to gangrenous mastitis. S. aureus factors or host-factors contributing to the different outcomes are not completely elucidated. In this study, experimental mastitis was
Anjuliee M Mittelman et al.
Environmental science & technology, 49(14), 8515-8522 (2015-06-13)
Application of silver nanoparticles (nAg) or silver nitrate (AgNO3) has been shown to improve the microbiological efficacy of ceramic water filters used for household water treatment. Silver release, however, can lead to undesirable health effects and reduced filter effectiveness over
Ramesh Subbiah et al.
International journal of nanomedicine, 10 Spec Iss, 191-201 (2015-09-09)
In order for nanoparticles (NPs) to be applied in the biomedical field, a thorough investigation of their interactions with biological systems is required. Although this is a growing area of research, there is a paucity of comprehensive data in cell-based
K Sheehy et al.
Journal of colloid and interface science, 443, 56-64 (2014-12-23)
Metallic nanoparticles such as nano-silver have found many applications as alternative antimicrobials in recent years. However methods for determining their proposed antimicrobial activity have received little attention to date. The disk diffusion assay is commonly used as a demonstration 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
Lung-Shuo Wang et al.
International journal of nanomedicine, 10, 2685-2696 (2015-04-17)
Silver nanoparticles have been used in various fields, and several synthesis processes have been developed. The stability and dispersion of the synthesized nanoparticles is vital. The present article describes a novel approach for one-step synthesis of silver nanoparticles-embedded chitosan particles.
Claudia Keil et al.
Polymers, 12(11) (2020-11-22)
Chronic non-healing wounds represent a substantial economic burden to healthcare systems and cause a considerable reduction in quality of life for those affected. Approximately 0.5-2% of the population in developed countries are projected to experience a chronic wound in their
Fabrication of SWCNT-Ag nanoparticle hybrid included self-assemblies for antibacterial applications.
Sayanti Brahmachari et al.
PloS one, 9(9), e106775-e106775 (2014-09-06)
The present article reports the development of soft nanohybrids comprising of single walled carbon nanotube (SWCNT) included silver nanoparticles (AgNPs) having superior antibacterial property. In this regard aqueous dispersing agent of carbon nanotube (CNT) containing a silver ion reducing unit
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