Materials Literature
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Hydrogen storage performances of a Li(2)NH-xMgNH combination system (x = 0, 0.5, 1 and 2) are investigated for the first time. It is found that the hydrogenated samples with MgNH exhibit a significant reduction in the dehydrogenation temperatures. Mechanistic investigations reveal that there is a strong dependence of…
This article reports a simple, versatile approach to the fabrication of high conducting multilayer films composed of alternating graphene (G) nanosheets and poly(sodium 4-styrenesulfonate) (PSS) using an electrostatic spin self-assembly technique. G nanosheets were prepared from natural graphite by oxidization, expans…
The modification of biologicals such as proteins/peptides, small molecules, and other polymers with lipids provides an efficient method for mediating their insertion into liposomes and lipid-core micellar nanocarriers. In this chapter, we describe several representative protocols developed in our laboratory for the bi…
BACKGROUND: To specifically deliver paclitaxel (PTX) to retinoblastoma (RB) cells, the anionic surface-charged poly(lactic-co-glycolic acid) (PLGA) NPs loaded with paclitaxel were conjugated with epithelial cell adhesion molecule (EpCAM) antibody for enhancing site-specific intracellular delivery of paclitaxel against…
The aim of the present study was to investigate the influence of electron beam (EB) irradiation on some blends of collagen-polyvinylpyrrolidone (PVP) and collagen-dextran (DEX). The blends were prepared by irradiating the mixtures of aqueos solutions of collagen, PVP and DEX by EB irradiation at different doses. After…
In this chapter we present recent advances in synthesis, characterization, optical, catalytic and physico-chemical properties of nanoscale materials with potential applications in fuel cells processes. In particular, this review and original research focuses on the catalytic properties of noble metal nanoparticles (e.…
A novel approach is presented for introducing a surface morphology with beneficial light scattering properties to sputter-deposited ZnO:Al films, which are used as front contact in Si thin film photovoltaic devices. Electrochemical anodization was used to trigger local dissolution, leading to interfacial structures co…
In the present work an effective technique to synthesize large-scale c-axis oriented ZnO nanorod (NR) arrays is presented. The manuscript reports a single-step cathodic electrodeposition, either in aqueous and organic electrolytes, to fill up ultra-thin anodic nanoporous alumina templates. Prior to growing, self-order…
The ability to alter the rate at which molecules are released from pores by manipulating structural and surface properties of mesoporous materials was demonstrated consistently in numerous studies. Yet an understanding of the role of pore size, attraction to pore walls and of the release mechanism in general has still…
Protein immobilization into structured polymer brushes was achieved by AFM lithography. Dense polystyrene brushes with thicknesses larger than 40 nm show protein repellent properties whereas brushes with thicknesses smaller than 20 nm show the expected known protein adsorption behavior. Multi tip AFM lithography allow…
With the recent advances made in monochromation of electron sources and Cs-correction, the point resolution of the transmission electron microscope (TEM) has been extended into the sub-Angstrom regime. This development has led to an important consequence—that specimen preparation has become a more critical issue for t…
We exploit a new structure of semiconductor sensitized solar cells, where CdS nanocrystals are assembled into a spongy structure and decorated with organic molecules to serve as photoanode. UV-vis absorption, Nyquist impedance spectra, combining with photocurrent density-voltage characterization demonstrate that the a…
Abstract—The permittivity of extra thin silk cloth is usually measured through some complex methods in the past. Here we propose a convenient and flexible method to measure the permittivity of extra thin silk cloth using resonant metamaterial structures. The metamaterial structures used here are symmetric split ring r…
A new metamaterial topology, called triangular-shaped single-loop resonator (SLR), is introduced with two distinct μ-negative (MNG) regions and one ε-negative (ENG) region over the S/C frequency bands. Transmission and reflection characteristics of the suggested subwavelength resonator are analyzed using full-wave ele…
Sodium niobate (NaNbO3) microcrystals were crystallized by a technically flexible ion exchange method in solution phase. A potassium niobate hollow sphere (KNHS) precursor was first grown via a hydrothermal route, the metastable compound is chemically active in NaOH solution, leading to the crystallization of NaNbO3 m…
Ni-containing catalysts are investigated under reaction conditions for two different cases, during sulfidation, with Ni-Mo based catalysts, and during ammoxidation reaction, with the Ni-Nb catalysts. It is shown how Raman spectroscopy can follow some of the transformations of these catalysts upon different treatments.…
The energetics and dynamics of multiply excited states in single material colloidal quantum dots have already been shown to exhibit universal trends. Here we attempt to identify similar trends in exciton-exciton interactions within compound colloidal quantum dots. For this end, we thoroughly review previously availabl…
The bis-β-diketimine with a meta-phenylene bridge (META-H(2): DIPPN(H)CMeCHCMeN-C(6)H(4)-NCMeCHCMeN(H)DIPP; DIPP = 2,6-iPr-C(6)H(3)) reacted with two equivalents of nBu(2)Mg to give the bis-β-diketiminate complex META-(MgnBu)(2). The latter binuclear magnesium complex was converted to META-[MgNH(iPr)BH(3)](2) by react…
A temporal and spatial study of the dynamics of generated shock waves and cavitation bubbles in water by laser peening using nanosecond Nd:YAG laser pulses is reported. False schlieren photographs of the zone surrounding the laser spot on the target were recorded by a fast ICCD camera. The developed experimental setup…
Electrical energy storage devices will play a key role in the development of sustainable energy production and usage, and for integrating intermittent and renewable sources into the energy landscape. One strategy for developing improved energy storage materials and devices is to take advantage of capacitive and pseudo…