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Craig E Banks et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 21(11), 1263-1268 (2005-12-02)
The recent development, behavior and scope of edge plane pyrolytic graphite electrodes in electroanalysis are overviewed. Similarities to, and advantages, over multi-walled CNT modified electrodes are noted and the wide scope of applications, ranging through gas sensing, stripping voltammetry and
Rajneesh Mohan et al.
Journal of nanoscience and nanotechnology, 13(5), 3573-3576 (2013-07-19)
Here we report the fabrication and characteristics of graphene oxide (GO) field effect transistor gated with piezopotential of ZnO fine wires on a flexible substrate. The FET device consists of GO thin film on the bottom and ZnO piezoelectric fine
Graphite foreign body granuloma.
N Terasawa et al.
The British journal of dermatology, 141(4), 774-776 (1999-12-03)
Joel D Cox et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 25(38), 385302-385302 (2013-08-31)
Nonlinear two-photon absorption in a quantum dot-graphene nanoflake nanocomposite system has been investigated. An external laser field is applied to the nanocomposite to simultaneously observe two-photon processes in the quantum dot and excite localized surface plasmons in the graphene nanodisk.
Neelesh Singh et al.
Food chemistry, 142, 430-438 (2013-09-05)
Cicer α-galactosidase was immobilized onto functionalized graphene with immobilization efficiency of 84% using response surface methodology (Box-Behnken design). The immobilized enzyme had higher thermal stability than the soluble one, attractive for industrial applications. Immobilization of the enzyme lowered the Km
R Hanoa
Scandinavian journal of work, environment & health, 9(4), 303-314 (1983-08-01)
Six hundred and five cases of graphite pneumoconiosis have been reported in the literature. In 39 cases the diagnosis was based on or supported by autopsy or lung biopsy results. Only 14 of the 39 cases were presented with relatively
Wenshuo Wang et al.
Journal of nanoscience and nanotechnology, 14(5), 3412-3416 (2014-04-17)
Single sheets of functionalized graphene oxide are derived through chemical exfoliation of natural flake graphite. We present an effective synthetic method of graphene-gold nanoparticles hybrid nanocomposites. AFM (Atomic Force Microscope) was used to measure the thickness of the individual GO
Luiz G P Martins et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(44), 17762-17767 (2013-10-16)
In this paper we explore the direct transfer via lamination of chemical vapor deposition graphene onto different flexible substrates. The transfer method investigated here is fast, simple, and does not require an intermediate transfer membrane, such as polymethylmethacrylate, which needs
Tobias Lammel et al.
Aquatic toxicology (Amsterdam, Netherlands), 150, 55-65 (2014-03-20)
Graphene and graphene derivatives constitute a novel class of carbon-based nanomaterials being increasingly produced and used in technical and consumer applications. Release of graphene nanoplatelets during the life cycle of these applications may result in human and environmental exposure calling
Materials science. Exploring the interface of graphene and biology.
Kostas Kostarelos et al.
Science (New York, N.Y.), 344(6181), 261-263 (2014-04-20)
Niranjanmurthi Lingappan et al.
Journal of nanoscience and nanotechnology, 13(11), 7439-7443 (2013-11-20)
Noncovalent functionalization of graphene was carried out via in-situ oxidative polymerization of poly(3-octylthiophene) (P3OT). First, graphene sheets were prepared by a modified Hummer's method and subsequently reduced with hydrazine monohydrate. The structure and morphology of the composites were investigated by
Jin-Gang Yu et al.
The Science of the total environment, 502, 70-79 (2014-09-23)
Due to their high adsorption capacities, carbon-based nanomaterials such as carbon nanotubes, activated carbons, fullerene and graphene are widely used as the currently most promising functional materials. Since its discovery in 2004, graphene has exhibited great potential in many technological
Huimin Bao et al.
Journal of chromatography. A, 1310, 74-81 (2013-09-04)
In this report, trypsin was covalently immobilized in the graphene oxide (GO)-silica composite coating on the channel wall of poly(methyl methacrylate) (PMMA) microchips to fabricate microfluidic bioreactors for highly efficient proteolysis. A mixture solution containing GO nanosheets and silica gel
Gunasekaran Venugopal et al.
Journal of nanoscience and nanotechnology, 13(5), 3515-3518 (2013-07-19)
In this article, we attempted a study on field effect transport characteristics of graphene flakes. These graphene flakes were exfoliated by mechanical peeling-off technique and the electrical contacts were patterned by photo-lithographic method. Graphene devices have shown better transfer characteristics
Yoon Jae Lee et al.
Journal of nanoscience and nanotechnology, 13(12), 7944-7949 (2013-11-26)
Graphene-containing carbon aerogel was prepared by a polycondensation of resorcinol with formaldehyde using chemically exfoliated graphene oxide in ambient conditions, and its electrochemical performance as an electrode for supercapacitor was examined. The effect of pH in the preparation of RFGO
Xueque You et al.
Journal of nanoscience and nanotechnology, 13(11), 7349-7357 (2013-11-20)
We have reported the preparation and characterization of a novel, freestanding, paper-like graphene (G)-poly(diallyldimethylammoniumchloride) (PDDA)-Fe3O4 nanoparticles (NPs) composite. This G-based flexible buckypaper (BP) composed of stacked G-PDDA-NP platelets exhibited excellent mechanical properties, superior electrical properties, and enzyme mimetic activity, making
Dong Ju Han et al.
Journal of nanoscience and nanotechnology, 13(12), 8154-8161 (2013-11-26)
Graphene nanomaterial has been reported as a chemical mechanism based surface-enhanced Raman scattering (SERS) substrate which has advantages of accuracy in the peak assignment with less peak shift and broader choice in the laser sources. Here we present a systematic
Xianglei Kong et al.
Journal of nanoscience and nanotechnology, 14(7), 4719-4732 (2014-04-25)
This paper reviews the up-to-date research about the applications of graphene and its related materials in the field of mass spectrometry (MS). Due to its large surface area, delocalized pi-electrons, thermal conductivity, stability and rich interaction chemistry, graphene has been
Seung Tae Jungo et al.
Journal of nanoscience and nanotechnology, 13(11), 7358-7364 (2013-11-20)
In order to overcome the difficulty of dispersion and low conductivity in composite containing graphene, graphene oxide (GO) has been used instead of neat graphene. And the GO treated by radiation, could give improved conductivity of the GO-containing polymer composite.
Maryam Ghanbarian et al.
Journal of AOAC International, 96(4), 880-886 (2013-09-05)
A new displacement-dispersive liquid-liquid microextraction method based on the solidification of floating organic drop was developed for separation and preconcentration of Pd(ll) in road dust and aqueous samples. This method involves two steps of dispersive liquid-liquid microextraction based on solidification.
M A Pimenta et al.
Physical chemistry chemical physics : PCCP, 9(11), 1276-1291 (2007-03-10)
Raman spectroscopy has historically played an important role in the structural characterization of graphitic materials, in particular providing valuable information about defects, stacking of the graphene layers and the finite sizes of the crystallites parallel and perpendicular to the hexagonal
Tatsuhiko Kawamoto et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(24), 9663-9668 (2013-05-30)
Slab-derived fluids play an important role in heat and material transfer in subduction zones. Dehydration and decarbonation reactions of minerals in the subducting slab have been investigated using phase equilibria and modeling of fluid flow. Nevertheless, direct observations of the
Niranjanmurthi Lingappan et al.
Journal of nanoscience and nanotechnology, 13(5), 3719-3722 (2013-07-19)
Graphene nanosheets functionalized with poly(p-phenylenediamine) (PPDA) were prepared via the in-situ chemical oxidative polymerization using potassium persulphate as a catalyst. Graphene nanosheets were previously prepared by chemical reduction of exfoliated graphite oxide. The structure and morphology of the composite material
Stephanie Reich et al.
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences, 362(1824), 2271-2288 (2004-10-16)
We present a review of the Raman spectra of graphite from an experimental and theoretical point of view. The disorder-induced Raman bands in this material have been a puzzling Raman problem for almost 30 years. Double-resonant Raman scattering explains their
Jae-Hun Yang et al.
Journal of nanoscience and nanotechnology, 13(11), 7487-7492 (2013-11-20)
Recently, graphitic carbon nitride (g-C3N4) materials have received a great attention from many researchers due to their various roles as a visible light harvesting photocatalyst, metal-free catalyst, reactive template, nitrogen source of nitridation reaction, etc. g-C3N4 could be prepared by
Jungsoo Kim et al.
Journal of nanoscience and nanotechnology, 13(5), 3387-3391 (2013-07-19)
Graphene was coated on low carbon steel (SS400) by electro spray coating method to improve its properties of corrosion resistance and contact resistance. Exfoliated graphite was made of the graphite by chemical treatment (Chemically Converted Graphene, CCG). CCG is distributed
Jong-Jun Baek et al.
Journal of nanoscience and nanotechnology, 13(11), 7418-7423 (2013-11-20)
Graphene has recently been the focus of a great deal of attention owing to its outstanding properties, which include high mobility, high thermal conductivity and high structural stability. In this study, a few layer graphene was successfully synthesized from methane
Anuj Girdhar et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(42), 16748-16753 (2013-10-02)
By using the nonequilibrium Green's function technique, we show that the shape of the edge, the carrier concentration, and the position and size of a nanopore in graphene nanoribbons can strongly affect its electronic conductance as well as its sensitivity
Hatef Sadeghi
Journal of nanoscience and nanotechnology, 14(6), 4178-4184 (2014-04-18)
The analytical electrical transport model of the Silicene, a single layer of sp3 bonded silicon atoms in the honeycomb lattice structure as a channel in the field effect transistor configuration is presented in this paper. Although the carrier concentration of
Li Wu et al.
Nucleic acids research, 42(21), doi:10-doi:10 (2014-09-25)
Nucleic acids have become a powerful tool in nanotechnology because of their controllable diverse conformational transitions and adaptable higher-order nanostructure. Using single-stranded DNA probes as the pore-caps for various target recognition, here we present an ultrasensitive universal electrochemical detection system
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