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373168

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Phillip Ahn et al.
Ultrasonics, 54(3), 795-800 (2014-02-14)
A resonance based laser ultrasonics technique is explored for the characterization of low density nanoporous gold foams. Laser generated zero group velocity (ZGV) lamb waves are measured in the foams using a Michelson interferometer. The amplitude spectra obtained from the
Guojun Weng et al.
Journal of nanoscience and nanotechnology, 14(6), 4072-4077 (2014-04-18)
Gold nanorods of different aspect ratios had been synthesized using seed mediated growth method. The formed gold nanorods had been characterized by the absorption and transmission electron microscopy (TEM) measurements. The obtained gold nanorods were used to study the quenched
Jun Hyuk Heo et al.
Journal of nanoscience and nanotechnology, 13(11), 7254-7258 (2013-11-20)
We investigated the stability of gold nanoparticles (AuNPs) in seawater. The large amount of Na+, Mg2+, K+, and Ca2+ in seawater makes AuNPs unstable resulting in immediate aggregation. We found that AuNPs become much more stable when they were treated
Evelyn Auyeung et al.
Nature, 505(7481), 73-77 (2013-11-29)
Crystallization is a fundamental and ubiquitous process much studied over the centuries. But although the crystallization of atoms is fairly well understood, it remains challenging to predict reliably the outcome of molecular crystallization processes that are complicated by various molecular
Lin Luo et al.
Journal of nanoscience and nanotechnology, 14(6), 4036-4042 (2014-04-18)
A novel immunosensor of human immune globulin (IgG) was fabricated based on the fluorescence transfer between luminescent semiconductor quantum dots (QDs) and gold nanoparticles (AuNPs). AuNPs and CdSe/ZnS QDs were respectively labeled with immune reaction pair:IgG and goat anti-human immunoglobulin
Astrid van der Horst et al.
International journal of radiation oncology, biology, physics, 89(3), 641-648 (2014-05-08)
Because of low soft-tissue contrast of cone beam computed tomography (CBCT), fiducial markers are often used for radiation therapy patient setup verification. For pancreatic cancer patients, biliary stents have been suggested as surrogate fiducials. Using intratumoral fiducials as standard for
Yun Zhang et al.
Natural product reports, 31(4), 489-503 (2014-01-31)
Novel organic reactions drive the advance of chemical synthesis in the same way that enabling technologies drive new scientific discoveries. One area of organic methodology that has undergone significant growth during the last decade is that of homogeneous gold-catalyzed transformations.
Cathleen M Crudden et al.
Nature chemistry, 6(5), 409-414 (2014-04-24)
Since the first report of thiol-based self-assembled monolayers (SAMs) 30 years ago, these structures have been examined in a huge variety of applications. The oxidative and thermal instabilities of these systems are widely known, however, and are an impediment to
Roberto Cao-Milán et al.
Expert opinion on drug delivery, 11(5), 741-752 (2014-02-25)
Gold nanoparticles display a unique combination of chemical inertness, surface chemistry and size- and shape-dependent electronic and optical properties, which render them ideal for clinical applications. The present article describes recent advancements on the application of gold nanoparticles in vaccine
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
Bum-Young Noh et al.
Journal of nanoscience and nanotechnology, 13(5), 3335-3340 (2013-07-19)
Surface plasmon (SP)-enhanced light emission mechanism has been investigated for the Ag-coated ZnO/Al2O3 core/shell nanorods (NRs). Structural characterizations showed that the ZnO NRs were covered by conformal Al2O3 layer and coated by Ag nanoparticles (NPs). The optical studies by photoluminescence
Seyed Mohammad Amini et al.
IET nanobiotechnology, 7(4), 151-156 (2013-11-12)
In the recent years, enhanced functionality of treatment systems based on nanostructures has attracted a lot of interest. Photodynamic therapy (PDT) is one such treatment method. Here, the authors report the results of the investigations on synthesis and characterisation of
Yuyun Zhao et al.
Nanoscale, 5(18), 8340-8350 (2013-07-31)
Widespread antibiotic resistance calls for new strategies. Nanotechnology provides a chance to overcome antibiotic resistance by multiple antibiotic mechanisms. This paper reviews the progress in activating gold nanoparticles with nonantibiotic or antibiotic molecules to combat bacterial resistance, analyzes the gap
Hong C Shen et al.
Drug discovery today. Technologies, 10(1), e3-14 (2013-09-21)
Gold-catalyzed transformations allow efficient access to a wide scope of heterocyclic structures that serve as building blocks and pharmacophores in medicinal chemistry. Compared with other transition metal and Lewis acid catalysis, gold catalysis presents mechanistic divergence, excellent functional group tolerance
Bibek Jyoti Borah et al.
Journal of nanoscience and nanotechnology, 13(7), 5080-5087 (2013-08-02)
Multifunctional phosphine based ligands, 1,1,1-tris(diphenylphosphinomethyl)ethane [CH3C(CH2 PPh2)3][P3] and 1,1,1-tris(diphenylphosphinomethyl)ethane trisulphide [CH3C(CH2P(S)Ph2)3][P3S3] have been introduced to stabilize Au(o)-nanoparticles having small core diameter and narrow size distribution. The Au(o)-nanoparticles were synthesized by the reduction of HAuCl4 precursor with NaBH4 in the presence
James L Mallows
The Medical journal of Australia, 199(11), 813-814 (2013-12-18)
To examine the effect of an education campaign based around a gold coin fine on ordering of C-reactive protein (CRP) tests. A retrospective analysis of CRP test ordering before and after the intervention in the emergency department (ED) of a
Samudra Sengupta et al.
Nature chemistry, 6(5), 415-422 (2014-04-24)
Non-mechanical nano- and microscale pumps that function without the aid of an external power source and provide precise control over the flow rate in response to specific signals are needed for the development of new autonomous nano- and microscale systems.
Jiajing Zhang et al.
Journal of nanoscience and nanotechnology, 14(6), 4124-4138 (2014-04-18)
Gold nanostructures with promising applications in biomedical field have attracted great attention. However, some fundamental questions other than the development of novel applications should be elucidated before they can actually serve as biomedicines in the clinic. Bio-safety is one of
Taek Lee et al.
Journal of nanoscience and nanotechnology, 13(9), 6020-6026 (2013-11-12)
In the present study, an nano-platform composed of Au nanodot arrays on which biomolecules could be self-assembled was developed and investigated for a stable bioelectronic device platform. Au nanodot pattern was fabricated using a nanoporous alumina template. Two different biomolecules
Xuewen Fu et al.
Journal of nanoscience and nanotechnology, 13(12), 8245-8252 (2013-11-26)
A label-free electrochemical immunosensor, based on a gold nanoparticles (Au NPs)/silicon template/methylene blue (MB)/chitosan (CHIT) nanocomposite-modified electrode, was fabricated for the ultrasensitive detection of microcystin-LR (MC-LR). The nanocomposite film showed high binding affinity to the antibodies of MC-LR because gold
Divya Prakash et al.
Indian journal of experimental biology, 51(11), 969-972 (2014-01-15)
Gold nanoparticles (Au-NPs) were synthesized from chloroauric acid using cell free supernatant of Streptomyces sp. NK52 grown in nutrient broth. These nanoparticles were synthesized by varying pH and temperature of the reaction mixture and chloroauric acid concentration. The nanoparticles were
Priyatha Premnath et al.
Journal of biomedical nanotechnology, 10(6), 1061-1067 (2014-04-23)
Hybrid biomaterials are a combination of two or more different materials that work synergistically to produce superior properties. Nano structuring of such hybrid materials has also posed complications. In this study, we present, for the first time a nanofibrous hybrid
Kaili Niu et al.
Journal of nanoscience and nanotechnology, 14(7), 5151-5156 (2014-04-25)
An immunochromatographic test strip using gold nanoparticles-staphylococcus aureus monoclonal antibody conjugates was developed for the rapid and convenient detection of staphylococcus aureus based on a double-antibody sandwich format. The detection limit and the detection rate of this test strip is
Celina Yang et al.
Journal of nanoscience and nanotechnology, 14(7), 4813-4819 (2014-04-25)
The applications of nanoparticles (NPs) for improved therapeutics are at the forefront of cancer nanotechnology. Gold nanoparticles (GNPs) have been extensively used due to their ability to act as both an anticancer drug carrier in chemotherapy and as a dose
Jungsoo Kim et al.
Journal of nanoscience and nanotechnology, 13(5), 3737-3741 (2013-07-19)
Some composites of gold nanoparticles and graphite nanosheets were prepared by electrostatic interaction, and structurally and electrochemically characterized using X-ray diffraction, X-ray photoelectron spectroscopy, UVNis spectroscopy, transmission electron microscopy, and cyclic-voltammetry. Pristine graphite was chemically treated using aqueous acid solution
Ying Sun et al.
Journal of nanoscience and nanotechnology, 14(6), 4078-4081 (2014-04-18)
Colloidal gold is extensively used for molecular sensing because that the surface plasmon resonance (SPR) bands are affected by changes in the dielectric properties in the close vicinity of these structures due to the binding of ligands to the corresponding
Babak Mostafazadeh et al.
Pakistan journal of pharmaceutical sciences, 26(6), 1267-1270 (2013-11-06)
Mercury exposure is a health concern in the occupational settings like gold mining and chloralkali industries and blood and urine levels of mercury are used as exposure indicators. In this study, blood and urine concentrations of mercury were determined using
Claudia Diletto et al.
Journal of nanoscience and nanotechnology, 13(7), 5215-5220 (2013-08-02)
Innovative hybrid nanocomposites based on a nanostructured block copolymer (BCP) matrix whose lamellar nanodomains are selectively loaded with metal nanoparticles, have been prepared. A symmetric poly(styrene-b-methylmethacrylate) (PS-b-PMMA) amorphous BCP showing a lamellar morphology has been employed. Thin films of PS-b-PMMA
Chen Zhou et al.
Experimental biology and medicine (Maywood, N.J.), 238(11), 1199-1209 (2013-10-11)
Our fundamental understanding of cell biology and early diagnosis of human diseases have been greatly benefited from the development of fluorescent probes. Over the past decade, luminescent gold nanoparticles (AuNPs) with diverse structural parameters including particle size, surface ligands, valence
Shereen F Mossallam et al.
Experimental parasitology, 144, 14-21 (2014-06-15)
Through increased awareness and improved diagnostics, microsporidiosis has now been identified in a broader range of human populations; however current therapies are inconsistently effective. Recently, probiotics were determined as means for the control of intestinal parasitic infections through their secretory
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