Materials Literature
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Recent research in tissue engineering for the treatment of cartilage defects have demonstrated that matrix-biomaterial, cell culture conditions, and cytokine-related factors influence the chondrogenic differentiation pattern, especially for the expression of matrix genes. However, little is known about the impact of c…
The U.S. government lacks an effective plan for ensuring the safety of nanotechnology, a new report by the National Research Council (NRC) concludes. The report, released last week, finds that the current plan for coordinating federal research on environmental, health, and safety (EHS) risks of nanotechnology amounts…
The electrochemical performance of anode supported cells with screen-printed Sr-doped lanthanum cobalt oxide cathodes was studied using electrochemical impedance spectroscopy and polarization measurements. In order to obtain information on the resistance contribution from the cathode alone symmetrical cell measurement…
The multilayer coupled wave theory is extended to systematically investigate the diffraction properties of multilayer volume holographic gratings (MVHGs) under ultrashort laser pulse readout. Solutions for the diffracted and transmitted intensities, diffraction efficiency, and the grating bandwidth are obtained in tra…
Volatile organic compounds (VOCs) in the traditional paint and coating formulations are an important health and environmental concern, and current formulations are increasingly moving toward water-based dispersions. However, even within the water-based systems, small quantities of organic solvents are used to promote…
The preparation of three isonitrile complexes (p-tosyl)CH(2)NCAu(I)X (X = Cl, Br, and I) along with their structural, spectral, and computational characterization are reported. X-Ray crystallography reveals that these complexes all crystallize in the same space group, C2/c, and have closely related supramolecular stru…
Laser-ablated iron, ruthenium, and osmium atoms react with hydrogen in excess argon, neon and pure hydrogen to produce the FeH(2) molecule, and the FeH(2)(H(2))(3), RuH(H(2))(4), RuH(2)(H(2))(4), and (H(2))MH complexes (M = Fe, Ru, Os), as identified through infrared spectra with D(2) and HD substitution. DFT frequenc…
The total energy and electronic structure of lanthanum have been calculated in the bcc, fcc, hcp, and double hcp structures for pressures up to 35 GPa. The full-potential linearized-augmented-plane-wave method was used with both the local-density approximation (LDA) and generalized-gradient approximation (GGA). The co…
(1)H, (13)C and (15)N NMR studies of gold(III), palladium(II) and platinum(II) chloride complexes with picolines, [Au(PIC)Cl(3)], trans-[Pd(PIC)(2)Cl(2)], trans/cis-[Pt(PIC)(2)Cl(2)] and [Pt(PIC)(4)]Cl(2), were performed. After complexation, the (1)H and (13)C signals were shifted to higher frequency, whereas the (15)…
To achieve the processing of high performance solid oxide fuel cells (SOFCs) operating in the intermediate-temperature range (600–750 °C), either a thin layer electrolyte configuration or development of a new electrolyte material with high ionic conductivity is needed. In this work, atomic layer deposition, ALD, was u…
Two chondrogenic factors, Dex and TGF-beta1, were incorporated into PLGA scaffolds and their chondrogenic potential was evaluated. The Dex-loaded PLGA scaffold was grafted with AA and heparin, the heparin-immobilized one was then reacted with TGF-beta1, yielding a PLGA/Dex-TGF (PLGA/D/T) scaffold. The scaffolds were s…
Al2O3 buffer in a ZnO thin film transistor with poly-4-vinylphenol dielectric, Bang, Seokhwan, Lee, Seungjun, Jeon, Sunyeol, Kwon, Semyung, Jeong, Wooho, Kim, Honggyu, Shin, Iksup, Chang, Ho Jung, Park, Hyung-ho, Jeon, Hyeongtag
Recently developed star-shaped nanosized oligofluorene truxenes are dispersed in a novel vinyl ether based photoresist to produce microstructures via direct laser writing. The technique offers rapid and facile production of nanostructures whithin a microstructure, and ensures environmental protection from photo-oxidat…
The effect of Ph-OH group content on gelation time, mechanical properties, hydrophobicity, and cellular adhesiveness of hydrogels produced from carboxymethylcellulose derivatives is investigated. A higher Ph-OH group content induces faster gelation and yields more brittle and hydrophobic gels. After 4 h of seeding, a…
A release-controlled OP-1 delivery system consisting of a suspension of core-shell nanoparticles was prepared. The nanoparticles were composed of a core of positively-charged large unilamellar liposomes and a shell constructed through the L-b-L assembly of alternating layers of negatively-charged sodium alginate and p…
We investigate a new type of thin film material which allows for water storage without an increase in film thickness, whereas typically water storage in polymers and polymer films is accompanied with a strong swelling of the film, i.e., a strong increase in the film thickness. So these films will avoid problems relate…
In the present work, we have used aqueous microgels as containers for the deposition of silver nanoparticles (AgNPs). It has been shown that AgNPs can be effectively incorporated in the microgel interior during the in situ reduction of silver ions. Obtained hybrid microgels with variable AgNPs loading (from 1 to 12 wt…
Several studies of the decohesion properties of various oxide/metal systems have been performed recently by ab initio calculations. However, the use of different computational methods, which involve diverse approximations, energy functionals, or calculation conditions, makes the identification of general trends diffic…
We generalize the momentum average (MA) approximation to study the properties of models with ${g}_{\mathbf{q}}$ momentum-dependent electron-phonon coupling. As in the case of the application of the original MA to the Holstein model, the results are analytical, numerically trivial to evaluate, exact for both zero bandw…
The electronic structures of a homologous series of indole and benzofuran derivatives, in which the nitrogen or oxygen atom is replaced by group 15 and group 16 heavier heteroatoms, have been investigated by means of various spectroscopic techniques coupled with density functional calculations. It was found that the e…