nanoparticle Articles

  • Colloidal syntheses of FePt nanoparticles

    Over the past few years FePt nanoparticles (nPs) have become key–candidates for the development of platforms for data storage, catalysis and a wide range of biomedical applications. While fairly young in regards of other magnetic nPs, the synthesis of FePt nPs has certainly reached a maturity which makes it timely to briefly review the main colloidal chemistry pathways used to obtain them. With a ...


    By Inderscience Publishers

  • Nanoparticle Research with the NanoLog

    Increased interest in research and applications of nanoparticles requires rapid qualitative and quantitative analysis of nanoparticle samples. The development of the NanoLog spectrofluorometer and associated Nanosizer software takes advantage of nanoparticles’ fluorescence in the near-IR, and allows researchers to rapidly and accurately assess the composition and properties of samples of ...


    By HORIBA Europe GmbH

  • Molecular dynamics simulations of nanoparticles

    Nanoparticles are becoming increasingly important in many areas of nanotechnology. Here we use classical molecular dynamics simulations to investigate the competition between surface and volumetric effects in metal nanoparticles. In particular, we review work on the melting of isolated nanoparticles, solid-solid transitions in nanoparticles and the deposition of nanoparticles on substrates. In ...


    By Inderscience Publishers

  • Design of bimetallic nanoparticles

    A novel preparation method to control a microstructure and the resulting structure and activity relationship are presented to aim a rational design of the well defined bimetallic nanoparticles. Nanoparticles are engineered inside the supercage of faujasite type zeolite. The reduction mechanism for the bimetallic nanoparticles is proposed based on the results of X-ray absorption fine structure, ...


    By Inderscience Publishers

  • Magnetic nanoparticles for imaging technology

    In recent years, paramagnetic nanoparticles have shown great potential applications in many biological fields. Versatility in the use of super paramagnetic iron oxide nanocrystals in the field of biomedical applications, including targeted drug delivery, bioseparation, tissue repair, cancer treatment through hyperthermia, and magnetic resonance imaging (MRI) contrast enhancement make this ...


    By Inderscience Publishers

  • Monitoring and Treatment of Selected Nanoparticles

    With their increasing use, nanoparticles will become concentrated in urban effluents in the future. Both adequate monitoring methods and water treatment technologies will be necessary to assess and avoid consumer exposure. This paper reports results in these two challenging areas for both organic and inorganic nanoparticles. Treatment experiments indicate that lamellar settling is better adapted ...


    By IWA Publishing

  • In vitro physicochemical evaluation of DNA nanoparticles

    We aim to characterise in vitro physiochemical behaviour of DNA nanoparticles that have been developed by our research group based on the biodegradable natural polymers with metal coordination. A polysaccharide, pullulan, was chosen as the vector of plasmid DNA. Diethylenetriamine pentaacetic acid (DTPA) was chemically introduced to the hydroxyl groups of dextran to obtain pullulan-DTPA. When ...


    By Inderscience Publishers

  • Luminescence properties of Sn1−xFexO2 nanoparticles

    Nanoparticles of Sn1−xFexO2 (x = 0, 0.02, 0.05, 0.1) have been prepared by co-precipitation method using SnCl2 and FeSO4 precursors and subsequent heat-treatment at 600°C. X-ray Diffraction (XRD) study shows that these nanoparticles crystallise in tetragonal system. The unit cell volume increases slightly with Fe2+ doping indicating substitution of Sn4+ sites by Fe2+ ions. The unit cell volume ...


    By Inderscience Publishers

  • Commercial scale production of inorganic nanoparticles

    This review focuses on the current trend in the commercial scale production methods of inorganic nanoparticles. The limiting factors for the scalability of synthesis methods are explained and the relationship between commercial nanoparticle materials and production methods is discussed. Particular emphasis is placed on the fact that different synthesis techniques lead to different properties of ...


    By Inderscience Publishers

  • On the vibration assisted fluidisation of silica nanoparticles

    An experimental study was undertaken to investigate the process of vibration-assisted nanoparticle fluidisation. Fluidisation characteristics were assessed by measuring pressure drop, bed expansion and bed collapse behaviour at vibrational intensities between 0 Hz and 34 Hz, for silica nanoparticles with particle densities between 25 kg/m? and 38 kg/m?, and particle sizes of 7 nm and 16 nm. Two ...


    By Inderscience Publishers

  • Preparation of monodisperse functionalised superparamagnetic nanoparticles

    Monocrystalline iron oxide nanoparticles were synthesised by a one-pot procedure using iron salts in benzyl alcohol and functionalised with dopamine and carboxylmethylated dextran. Dextran macromolecules with low and high carboxyl contents were synthesised and grafted onto the dopamine-functionalised nanoparticles. The particles were characterised using X-ray photoelectron spectroscopy (XPS), ...


    By Inderscience Publishers

  • Critical Review Discussion -- Nanoparticles and the Environment

    This paper is a discussion of the 2005 A&WMA Critical Review on nanoparticles and the environment. In the review, Drs. Pratim Biswas and Chang-Yu Wu described how nanoparticles and ultrafine particles (nominally those with diameters ...

  • Metallic nanoparticles: synthesis, characterisation and application

    Colloidal sphere-like gold nanoparticles were prepared from an HAuCl4 aqueous solution by the chemical reduction method and by using X-ray irradiation, while rod-like gold nanoparticles were synthesised according to the seed-mediated growth method and by sonoelectrochemistry. Gold nanoparticles exhibit fcc structure. Sphere-like gold nanoparticles have a ...


    By Inderscience Publishers

  • Nanoparticles and nanowires: synchrotron spectroscopy studies

    This paper reviews the research in nanomaterials conducted in our laboratory in the last decade using conventional and synchrotron radiation techniques. While preparative and conventional characterisation techniques are described, emphasis is placed on the analysis of nanomaterials using synchrotron radiation. Materials of primary interests are metal nanoparticles and semiconductor nanowires and ...


    By Inderscience Publishers

  • Spheroidal nanoparticles as nanoantennas for fluorescence enhancement

    Nanoantennas made of spheroidal metal nanoparticles are studied as a function of several parameters, namely aspect ratio, volume, background index and metal. Single nanospheroids are analysed using the polarisability theory with radiative and depolarisation corrections, while double spheroids are investigated using the finite-difference time-domain method. We focus on the spectral position of the ...


    By Inderscience Publishers

  • Patterning and encryption using gold nanoparticles

    In this paper, we describe a simple technique for the creation of patterns on different size scales and in a variety of substrates, based on the selective reshaping of Au nanorods into nanospheres. The drastic change in the optical properties of these materials when their shape is modified provides a sensitive and accurate tool for the creation of areas with different colours. Additionally, ...


    By Inderscience Publishers

  • Differential binding of serum proteins to nanoparticles

    In the physiological environment, endogenous proteins readily adsorb to the surface of foreign materials. These proteins facilitate recognition by phagocytic cells and strongly influence the nature of the immune and inflammatory responses. Properly anticipating the potential adverse effects caused by nanomaterials requires a fundamental understanding of the physical properties that govern this ...


    By Inderscience Publishers

  • Nucleation phenomenon in nanoparticle self-assemblies

    Dispersed nanoparticles self-assemble into complex structures when segregated from the solvent either by evaporation or precipitation. Thus, different micro- and macroscopic structures (opals, fractals, liquid crystals) formed by nanoparticles are observed as a result of the balance between electrostatic forces, surface tension, volume exclusion, substrate topography and affinity, and size, shape ...


    By Inderscience Publishers

  • Critical Review to Address Nanoparticles and Environment

    For a cautionary example of the paradox of innovation, look no further than asbestos, says Pratim Biswas, Ph.D. Asbestos—because of its unmatched strength, durability, and heat resistance—was long favored by the construction industry in a wide range of uses, ...


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