Materials Literature
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Paenibacillus macerans is one of the species with the broadest metabolic capabilities in the genus Paenibacillus, able to ferment hexoses, deoxyhexoses, pentoses, cellulose, and hemicellulose. However, little is known about glycerol metabolism in this organism, and some studies have reported that glycerol is not ferme…
The article describes the study of targeted chemotherapeutic intervention on solid tumors by means of ultrasound and doxorubicin- or paclitaxel-loaded perfluoropentane nanoemulsions. Nanodroplets of the emulsions accumulated in a tumor by passive targeting. Under the action of a tumor-directed therapeutic ultrasound,…
Corrosion-induced cracks in reinforced concrete (RC) structures degrade the stiffness of the cover concrete. The stiffness degradation is mainly caused by the softening in the stress-strain relation in the cracked concrete. Limited efforts have been made to model the cracking and the corresponding effects on the cover…
Acidithiobacillus caldus is an extremely acidophilic, moderately thermophilic, chemolithoautotrophic gammaproteobacterium that derives energy from the oxidation of sulfur and reduced inorganic sulfur compounds. Here we present the draft genome sequence of Acidithiobacillus caldus ATCC 51756 (the type strain of the spe…
Abstract Ethanol was efficiently converted into n-butanol in the presence of a catalytic amount of [Ir(acac)(cod)], 1,7-octadiene, and EtONa. This method provides an efficient alternative approach to n-butanol which is conventionally manufactured by oxo process of propylene with H2 and CO followed by hydrogenation of…
Preparation, phase composition, microwave dielectric properties, and chemical compatibility with silver and aluminum electrodes were investigated on a series of single‐phase compounds in the Bi 2 O 3 –MoO 3 binary system. All materials have ultralow sintering temperatures <820°C. Eight different x Bi 2 O 3 –(1− x )MoO…
Advances in our understanding of stem cell interactions with their environment are leading to the development of new materials-based approaches to control stem cell behavior toward cellular culture and tissue regeneration applications. Materials can provide cues based on chemistry, mechanics, structure, and molecule d…
The rapid increase of interest in the field of biohybrid and biomimetic materials that exhibit improved structural and functional properties is attracting more and more researchers from life science, materials science, and nanoscience. Concomitant results offer valuable opportunities for applications that involve disc…
Abstract A model protein was fused with the ELWRPTR peptide, which binds specifically to the isotactic poly(methyl methacrylate) (it-PMMA) film surface, and its adsorption on PMMA film surfaces was then investigated by surface plasmon resonance measurements. We found that the adsorption constant of the fusion protein…
Purpose The purpose of this paper is to focus on the use of a nickel‐titanium (nitinol) shape memory alloy (SMA) wire (capable of showing strains of up to 8 per cent) as the active element that drives a flexible and lightweight micropositioning actuator. The purpose of this paper is to finely control the wire contract…
We have synthesized three new molecules that have three thienylethynyl arms substituting a central benzene core and different electron donor/acceptor groups in the three remaining phenyl positions. The absorption, fluorescence, phosphorescence, and transient triplet-triplet spectra are analyzed in the light of the ele…
A series of novel red phosphors LiEu 1− x Bi x (WO 4 ) 0.5 (MoO 4 ) 1.5 ( x =0, 0.05, 0.10, 0.15, 0.20, 0.30, 0.40, and 0.50) were synthesized by the conventional solid‐state reaction method. The spectrum and the crystal structure of the phosphors were characterized by Fluorescence spectrophotometry and X‐ray diffract…
Abstract Here, a straightforward and general method for the rapid dendritic amplification of accessible surface functional groups on hydroxylated surfaces is described, with focus on its application to 3D biomineral surfaces. Reaction of hydroxyl‐bearing silica surfaces with an aminosilane, followed by alternating exp…
Abstract Carrier multiplication (CM) was observed in CdTe quantum dots (QDs) capped with tetradecylphosphonic acid (TDPA) at hν⁄Eg>2.5 by picosecond single-photon timing spectroscopy, where hν and Eg are the excitation and the band gap energies, and the CM efficiency increased rapidly with the increase of hν⁄Eg. No CM…
In this paper, Co 2 O 3 ‐added‐85(Bi 1/2 Na 1/2 )TiO 3 –12(Bi 1/2 K 1/2 )TiO 3 –3BaTiO 3 (BNKB) lead‐free piezoceramics were fabricated by the conventional solid oxide routine. By the use of X‐ray photonic spectra, X‐ray diffraction, and scanning electronic microscope, the valence state of Co cations, lattice distorti…
Purpose The purpose of this paper is to provide a review of the technology and applications of shape‐memory materials (SMMs). Design/methodology/approach This paper initially considers various classes of SMMs and their properties. It then discusses applications and concludes with a brief review of recent research and…
Nonlocal continuum mechanics allows one to account for the small length scale effect that becomes significant when dealing with micro- or nano-structures. This Note investigates a model of wave propagation in a nonlocal elastic material. We show that a dispersive wave equation is obtained from a nonlocal elastic const…
Recent advances on the organization and characterization of [Mn12] single molecule magnets (SMMs) on a surface or in 3D are reviewed. By using nonconventional techniques such as X-ray magnetic circular dichroism (XMCD) and scanning tunneling microscopy (STM), it is shown that [Mn12]-based SMMs deposited on a surface l…
Aromatic residues are relatively rare within the collagen triple helix, but they appear to play a specialized role in higher-order structure and function. The role of aromatic amino acids in the self-assembly of triple-helical peptides was investigated in terms of the kinetics of self-association, the nature of aggreg…
We propose a simple model to describe the cavitation-induced breakage of mesoscale filaments during their sonication in solution. The model predicts a limiting length below which scission no longer occurs. This characteristic length is a function of the tensile strength and diameter of the filament, as well as the sol…