Materials Literature
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Graphene oxide (GO) has received great interest for its unique properties and potential diverse applications. Here, we show the fabrication of GO nanosheets incorporated monolithic column via one-step room temperature polymerization for capillary electrochromatography (CEC). GO is attractive as the stationary phase fo…
In this paper we will investigate how one can create emergent curved spacetimes by locally tuning the coupling constants of condensed matter systems. In the continuum limit we thus obtain continuous effective quantum fields living on curved spacetimes. In particular, using Stingnet condensates we can obtain effective…
Spin-polarized current effect is studied on the static and dynamic magnetization of the antiferromagnet in a ferromagnet - antiferromagnet nanojunction. The macrospin approximation is generalized to antiferromagnets. Canted antiferromagnetic configuration and resulting magnetic moment are induced by an external magnet…
We show that near an armchair edge of a wide graphene channel, and in the presence of a smooth step-like electrostatic lateral confining potential, the chirality, spectrum, spatial structure, and number of the fundamental edge magnetoplasmons (EMPs), in the $ν=2$ regime of the quantum Hall effect, depend strongly on t…
Abstract Rubber toughened poly(lactic acid) (PLA) was prepared by blending with natural rubber (NR)‐based polymers. The blends contained 10 wt % of rubber and melt blended with a twin screw extruder. Enhancement of impact strength of PLA was primarily concernced. This study was focused on the effect of rubber polarity…
Surgical resection is a mainstay of brain tumor treatments. However, the completed excision of malignant brain tumor is challenged by its infiltrative nature. Contrast enhanced magnetic resonance imaging is widely used for defining brain tumor in clinic. However its ability in tumor visualization is hindered by the tr…
The coverage density of poly(ethylene glycol) (PEG) is a key parameter in determining the efficiency of PEGylation, a process pivotal to in vivo delivery and targeting of nanomaterials. Here we report four complementary methods for quantifying the coverage density of PEG chains on various types of Au nanostructures by…
In the present investigation aqueous suspensions of nano- and colloidal range particles are stabilised by changing the ambient pH. Rheology is used to establish the stability of the suspensions and it is found that the rheology of the suspensions is strongly dependent on the pH values. The viscosity is highest close t…
Abstract- Corrosion behavior of mild steel in seawater from different sites was investigated by using weight loss method and potentiodynamic polarization test. Samples were immersed at two different sites near Kuala Terengganu coast and analyzed for its parameters. There is slight difference of corrosion behavior from…
Acoustically generated sonoluminescence (SL) and sonochemiluminescence (SCL) have been used to produce molecular hydrogen in a photocatalytic process using Ru(bipy) 3 2+ as a photosensitizer, methyl viologen as an electron relay agent, and colloidal platinum as the catalyst. SL and SCL and various radicals were genera…
We discuss the results of intensive Brownian dynamics simulations of a simple model of tetrahedral patchy particles in the optimal network density region. This choice allows us to investigate the evolution of the structure and of the dynamics in a wide range of temperatures without encountering any phase separation. T…
Graphenes with varying number of layers can be synthesized by different strategies. Thus, single-layer graphene is obtained by the reduction of single layer graphene oxide, CVD and other methods besides micromechanical cleavage. Few-layer graphenes are prepared by the conversion of nanodiamond, arcdischarge of graphit…
Highly spectrum-selective photodetectors have been proposed and fabricated from the i -ZnO/ n -ZnO structure. In this structure, the n -ZnO layer acts as a “filter” that filtrates out the short-wavelength photons to ensure the high spectrum selectivity of the photodetector. Meanwhile, the i -ZnO layer acts as a “multi…
A simple and general synthetic approach for one-step creation of graphene-upconversion nanocomposite by an in situ hydrothermal method has been developed. Using graphene oxide (GO) as a precursor reagent, the reduction of GO and the deposition of NaYF(4)/Yb,Er on graphene occur simultaneously. The electrogenerated che…
The inclusion of relativistic effects always brings to the scientific community great and stimulating surprises. To consider the spin-orbit term, which accounts for the interaction between the spatial and spin coordinates, requires the use of double point groups of symmetry in order to solve the Dirac equation or the…
Time-resolved simultaneous synchrotron small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) technique was used to investigate the phase transitions in prequenched mesomorphic isotactic polypropylene (iPP) samples during heating and annealing processes, respectively. For the heating process, it i…
Dendrimer as a drug delivery system is based on the approach of sending a nano particle  (10-9) to the body, loaded with drug. The drug might be loaded on its terminal surface or encapsulated within the branches of a dendrimer. It’s very small size and unique properties like polyvalency, monodispersity, stability…
Films of colloidal quantum dots of HgTe can be charged n- and p-type by electrochemistry. Infrared spectroscopy of the charged dots reveals interband bleach and intraband absorption. Similar mobilities, up to 0.1 cm 2 /(V s), are observed for both carriers, but p-type films show larger photocurrent while n-type films…
Poly(3-methylthiophene) (P3MT) was synthesized directly from indium tin oxide (ITO) electrodes modified with a phosphonic acid initiator, using Kumada catalyst transfer polymerization (KCTP). This work represents the first time that polymer thickness has been controlled in a surface initiated KCTP reaction, highlighti…
We apply the coupled dynamics of time-dependent density functional theory and Maxwell equations to the interaction of intense laser pulses with crystalline silicon. As a function of electromagnetic field intensity, we see several regions in the response. At the lowest intensities, the pulse is reflected and transmitte…