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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
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
Hadiyah N Green et al.
International journal of nanomedicine, 9, 5093-5102 (2014-11-15)
Nanoparticle (NP)-enabled near infrared (NIR) photothermal therapy has realized limited success in in vivo studies as a potential localized cancer therapy. This is primarily due to a lack of successful methods that can prevent NP uptake by the reticuloendothelial system
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
N Narayan et al.
Annals of the Royal College of Surgeons of England, 96(3), e3-e4 (2014-05-02)
Cauterisation with silver nitrate is commonly used to treat overgranulation. Silver nitrate has a high density and a high mass attenuation coefficient, and it is therefore highly radio-opaque. We present a case in which its topical application to an area
Takamitsu Miyayama et al.
Toxicology, 305, 20-29 (2013-01-22)
Silver (Ag) possesses antibacterial activity and has been used in wound dressings and deodorant powders worldwide. However, the metabolic behavior and biological roles of Ag in mammals have not been well characterized. In the present study, we exposed human bronchial
Sudhakar Ganta et al.
Dalton transactions (Cambridge, England : 2003), 44(34), 15181-15188 (2015-04-01)
A rare variety of coordination rings having the M3L6 composition are prepared by the combination of Pd(NO3)2 with an imidazolyl or benzimidazolyl appended bidentate non-chelating ligand (i.e.L1 or L2). The variable concentration 1H NMR spectra of the trinuclear complexes [Pd3(L1)6](NO3)6
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
Claire Saulou et al.
Analytical and bioanalytical chemistry, 405(8), 2685-2697 (2013-01-29)
The present work was focused on elucidating biochemical changes in the model bacterium Escherichia coli exposed to ionic silver mediated stress, at a single-cell scale. In order to achieve this, in situ synchrotron Fourier-transform infrared (sFTIR) microspectroscopy was performed, for
Chiara Di Bari et al.
Bioelectrochemistry (Amsterdam, Netherlands), 107, 30-36 (2015-11-03)
cathodes. Nanostructuring was provided by gold nanorods (AuNRs), which were characterized and covalently attached to electrodes made of low-density graphite. The nanostructured electrode was the scaffold for covalent and oriented attachment of ThLc. The bioelectrocatalytic currents measured for oxygen reduction
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
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
Irina Blinova et al.
Environmental science and pollution research international, 20(5), 3456-3463 (2012-11-13)
Although silver nanoparticles (NPs) are increasingly used in various consumer products and produced in industrial scale, information on harmful effects of nanosilver to environmentally relevant organisms is still scarce. This paper studies the adverse effects of silver NPs to two
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
Duraisamy Kalpana et al.
Enzyme and microbial technology, 52(3), 151-156 (2013-02-16)
Silver nanoparticles were synthesized by biological method using cultural filtrate of Klebsiella pneumoniae cultured under simulated microgravity and silver nitrate solution as precursor. The nanoparticles exhibited typical plasmon absorption maximum of silver nanoparticles between 405 and 407 nm. Spherical silver
Susana I L Gomes et al.
International journal of environmental research and public health, 12(6), 6858-6878 (2015-06-19)
The effects of several copper (Cu) and silver (Ag) nanomaterials were assessed using the cellular energy allocation (CEA), a methodology used to evaluate the energetic status and which relates with organisms' overall condition and response to toxic stress. Enchytraeus crypticus
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
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
Kimberly S Butler et al.
Mutagenesis, 30(4), 577-591 (2015-05-13)
The focus of this research was to develop a better understanding of the pertinent physico-chemical properties of silver nanoparticles (AgNPs) that affect genotoxicity, specifically how cellular uptake influences a genotoxic cell response. The genotoxicity of AgNPs was assessed for three
Nanda A Singh et al.
The Journal of physiology, 586(14), 3405-3423 (2008-05-17)
The childhood epilepsy syndrome of benign familial neonatal convulsions (BFNC) exhibits the remarkable feature of clinical remission within a few weeks of onset and a favourable prognosis, sparing cognitive abilities despite persistent expression of the mutant KCNQ2 or KCNQ3 potassium
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
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
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
Masato Miyakawa et al.
Nanoscale, 6(15), 8720-8725 (2014-06-21)
Continuous synthesis of Pd@Pt and Cu@Ag core-shell nanoparticles was performed using flow processes including microwave-assisted Pd (or Cu) core-nanoparticle formation followed by galvanic displacement with a Pt (or Ag) shell. The core-shell structure and the nanoparticle size were confirmed using
Artak Tovmasyan et al.
Journal of inorganic biochemistry, 140, 94-103 (2014-08-03)
In the present study we have synthesized a novel amphiphilic porphyrin and its Ag(II) complex through modification of water-soluble porphyrinic structure in order to increase its lipophilicity and in turn pharmacological potency. New cationic non-symmetrical meso-substituted porphyrins were characterized by
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.
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
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