| | 2. | Laser Synthesis of Pt, Pd, CoO and Pd-CoO Nanoparticle Catalysts Supported on Graphene Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 27 May 2011
Sherif Moussa, Victor Abdelsayed, M. Samy El-Shall
Graphical abstract
Highlights► Nanoparticle catalysts supported on graphene by laser reduction of metal ions and graphene oxide ► Pd and Pd-CoO catalysts supported on graphene for CO oxidation ► CoO enhances catalytic activity of Pd-graphene catalyst for CO oxidation
| | | | 3. | Nanostructured functional copolymers bioconjugate integrin inhibitors Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 27 May 2011
Aldo Laganà, Iole Venditti, Ilaria Fratoddi, Anna Laura Capriotti, Giuseppe Caruso, Chiara Battocchio, Giovanni Polzonetti, Filippo Acconcia, Maria Marino, Maria Vittoria Russo
Graphical abstract
Highlights► Polymeric and co-polymeric nanoparticles with different functionalities were obtained ► Bioconjugates were obtained by loading anti-Integrin antibody ► Bioconjugates qualitative and quantitative loading analyses were carried out ► The biological efficacy of bioconjugates was tested with HEK293 cells
| | | | 4. | Electrolyte Effect on Adsorption and the Phase Transition from Microstructures to Nanostructures in Ionic/Ionic Surfactants Mixture Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 27 May 2011
Maryam Moallemi, Beheshteh Sohrabi, Sara Fazeli
Graphical abstractVariations of electrostatic, transform and steric free energies vs the concentration of salt in cationic-rich region. Highlights► Energies are calculated by utilizing the new model of our previous work in various concentrations of salt. ► The obtained results show that transfer free energy decreased with increase of salt concentration. Therefore, this energy is a favorable energy for the stability of aggregates. ► With determination of diffusion coefficient by using cyclic voltammetry, we investigated the variations of electrostatic, transfer and steric free energy in phase transition between mixed micelle and vesicle in presence of electrolyte using the presented model by our groups.
| | | | 5. | Thermal loading induced near-infrared broadband upconversion emission of Sm3+-doped β–NaYbF4 nano-phosphors Original Research Article
Journal of Luminescence, In Press, Accepted Manuscript, Available online 27 May 2011
Xiangfu Wang, Xiaohong Yan, Caixia Kan
Highlights► Sm3+ doped β−NaYbF4 nanophosphors were synthesized by non-closed hydrothermal synthetic processing at 98°C.► Novel green, red and near-infrared broadband upconversion emissions of Sm3+ are observed under 980 nm excitation.► The half-width of 873 nm emission band is broadened nearly two-fold through the annealing treatment for nano-phosphors.► Cooperative sensitization and phonon-assisted energy transfer process by the thermal loading mechanisms are discussed.
| | | | 6. | Magnetic properties of 2D nano islands I: Ising spin model Original Research Article
Journal of Magnetism and Magnetic Materials, In Press, Accepted Manuscript, Available online 27 May 2011
A. Khater, M. Abou Ghantous
Highlights► An EFT model is presented to calculate the magnetic properties of 2D nano islands. ► The Hamiltonian contains n-n interactions, magnetic anisotropies with S = 1. ► Single site spin correlations, magnetizations, isothermal susceptibilities, are found. ► The core and periphery domains of the nano island form 2 shells. ► No evidence found of superparamagnetism behavior in square and hexagonal cores.
| | | | 7. | Clear distinctions between ferromagnetic and ferrimagnetic behaviors in a cylindrical Ising nanowire (or nanotube) Original Research Article
Journal of Magnetism and Magnetic Materials, In Press, Accepted Manuscript, Available online 27 May 2011
T. Kaneyoshi
Highlights► Reduced plots of total magnetization can be used for clear distinction between ferromagnetic & ferrimagnetic configurations. ► The thermal variation of the inverse paramagnetic initial susceptibility shows the hyperbolic shape with down curvature. ► The Neel hyperbola can be applied above TC, even when the size decreases to a nanometer scale.
| | | | 11. | Coherent phonons in excited-state carbon nanotubes: A simulation by tight-binding molecular dynamics Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 27 May 2011
Yong Ge, Feng Yang, Qifeng Liang, Jinming Dong
Highlights► Simulating the RBM and LO modes excited in low-lying excited-state in CNTs.► Showing the family behavior of RBM mode’s amplitude in CNTs.► The TO modes can only be excited in a chiral tube, but not in a zigzag tube.
| | | | 12. | Nonvolatile unipolar resistive switching in ultrathin films of graphene and carbon nanotubes Original Research Article
Solid State Communications, In Press, Accepted Manuscript, Available online 27 May 2011
K.S. Vasu, S. Sampath, A.K. Sood
Highlights► We demonstrate unipolar resistive switching in ultrathin films of reduced graphene oxide and carbon nanotubes. ► The ON-OFF ratio in graphene devices varies from ∼106 to 102 depending pulse widths of the applied voltage pulses. ► The ON-OFF ratio for nanotube devices is ∼40. ► The switching mechanism is proposed in terms of nanogap formation.
| | | | 13. | Microstructure, mechanical and tribological properties of TiCN nanocomposite films deposited by DC magnetron sputtering Original Research Article
Surface and Coatings Technology, In Press, Accepted Manuscript, Available online 27 May 2011
R. Chen, J.P. Tu, D.G. Liu, Y.J. Mai, C.D. Gu
Research highlights► We prepared TiCN composite films by sputtering a Ti-C combined target. ► We studied the composition, mechanical and tribological properties in detail. ► XPS and TEM confirmed Ti(C,N) existed the in the Ti-C-N composite films. ► sp2-C content, ratio of TiN to Ti(C,N) did a great impact on the properties.
| | | | 14. | Novel water-based nanosiloxane epoxy coating for corrosion protection of carbon steel Original Research Article
Surface and Coatings Technology, In Press, Accepted Manuscript, Available online 27 May 2011
M.R. Bagherzadeh, A. Daneshvar, H. Shariatpanahi
Research highlights► The adhesion and anticorrosion properties of epoxy coating, have cured by the modified curing agent with GPTMS silane, are improved significantly. ► The efficient weight percentage of GPTMS silane is 0.27% of water-based epoxy coating. ► With a good distribution of nanosilanes in the film coating, the performances of epoxy coating are improved significantly. ► With using water-based polyamidoamine curing agent, the hydrolysis reaction increased and accordingly the formation of nanosiloxane domains between coating and metal surface, enhanced. ► Electrochemical impedance spectroscopy tests confirm the level of porosity and defects present in the developed coating are very low
| | | | 15. | Structural, electronic, and optical properties of nanocrystalline As-doped ZnO films on quartz substrates determined by Raman scattering and infrared to ultraviolet spectra Original Research Article
Thin Solid Films, In Press, Accepted Manuscript, Available online 27 May 2011
W.W. Li, W.L. Yu, J.D. Wu, J. Gan, M. Zhu, Z.G. Hu, J.H. Chu
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