Materials Literature
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Reflection electron energy-loss spectroscopy (REELS) at low energies is very surface sensitive and can be used to characterize the electronic properties of ultrathin films and surface nanostructures. To extract reliable quantitative information from a REELS experiment it is essential to have accurate theoretical algor…
Test procedures for the mechanical evaluation of diesel particulate filter (DPF) substrate materials have been developed and applied for the characterization of porous cordierite under ambient conditions. Specifically the double‐torsion test method was employed to characterize fracture toughness and slow crack behavio…
A novel tetrathiafulvalene- (TTF-) fused poly(aryleneethynylene) with an acceptor main chain and donor side chains has been prepared and characterized. The EPR and UV–vis spectra show that there exists intramolecular charge transfer (CT) between the electron-rich TTF side chains and the electron-deficient main chain.…
The sensing of Ag+ and Cu2+ with ethylenediamine (EN)-capped CdS nanowires (NWs) was successfully demonstrated, and the relevant mechanism was revealed with a direct observation of the side product of the sensing event. The binding of Ag+ and Cu2+ at the surfaces of the EN-capped CdS NWs triggered an in situ growth of…
Medical grade Ni-Ti alloys with shape memory or pseudo-elastic behavior exhibit good biocompatibility because of an electrochemically passive oxide layer on the surface. In this work, the mechanical stability of surface oxide layers is investigated during reversible pseudo-elastic deformation of commonly applied medic…
Highly [001] textured KSr 2 Nb 5 O 15 (KSN) ceramics were fabricated by templated grain growth using acicular KSN template particles (5–15 wt%) and reactive matrix of SrNb 2 O 6 and KNbO 3 . Excess Nb 2 O 5 (1–1.5 wt%) was added as a liquid former. Increasing sintering temperature and time resulted in increased textur…
Rapid temperature control: A phospholipid–bovine serum albumin functionalized single-walled carbon nanotube complex (PL–BSA–SWNT) was found to be readily dispersible in poly(dimethylsiloxane) (PDMS). A photoinduced PDMS microchip encapsulating this complex is capable of achieving ultrarapid control of the temperature…
The growing interest in DNA diagnostics is addressed today by microarrays with fluoresence detection. In our approach, we utilize spatially defined arrays of short oligonucleotides on a modified glass surface. Surface enhanced resonance Raman scattering (SERRS) is used to obtain molecularly specific spectra of the Ram…
Two oxovanadium phosphonate cage compounds have been synthesized in an organic solvent, and their characterization has been done by single-crystal X-ray analysis, IR spectroscopy, and bond valence sum calculations. The simple reaction of a mixed-valent closed V12 cage system produced another quasi-closed system compos…
Abstract Six novel heterodinuclear d–f coordination complexes [LnCd(C 8 H 7 O 3 ) 5 (phen)(H 2 O)] (Ln = Sm 1 , Eu 2 , Tb 3 , Nd 4 , Ho 5 , Er 6 ; C 8 H 7 O 3 = 4‐methoxybenzoato; phen = 1,10‐phenanthroline) were synthesized by the hydrothermal method, and their structures were studied by single‐crystal X‐ray diffract…
Three new phosphonic acid ligands (4- (t)butylphenyl phosphonic acid, 3,5-dimethylphenyl phosphonic acid, and diphenylmethylphosphonic acid) have been synthesized and employed in search of high molecularity iron(III) clusters. The cluster compounds are characterized by single crystal X-ray diffraction and magnetic mea…
We demonstrate a facile method for the Suzuki coupling of aryl molecules on the diamond surface. This is a more versatile alternative compared to previous coupling methods based on alkene linkers because it opens up possibilities for the application of diamond in molecular electronics and photovoltaics. The diamond su…
An inside job: A binary self-assembly system produces supramolecular nanotubes with an interior recognition probe on the inner surface. They are able not only to detect the encapsulation, transportation, and release behavior of green fluorescent protein (GFP) in real time, but also to sense the stability of GFP in the…
Poly(lactide-co-glycolide) (PLGA) scaffolds prepared by the electrospinning technology were paid more attention in tissue engineering, but detailed investigation on the influence of process parameters on scaffold morphology and fiber diameters as well as distribution remains to be conducted. In the current study, PLGA…
Conformational stability of the collagen triple helix affects its turnover and determines tissue homeostasis. Although it is known that the presence of imino acids (prolines or hydroxyprolines) confer stability to the molecule, little is known regarding the stability of the imino-poor region lacking imino acids, which…
Porous lead zirconate titanate–lead zinc niobate (PZT–PZN) piezoelectric ceramics with a high degree of pore alignment were fabricated using directional freeze casting of a ceramic/camphene slurry. Well‐aligned pores were formed as the replica of the camphene dendrites that grew in a preferential orientation, while a…
Buckypapers (BPs) are thin films made up of carbon nanomaterials, such as single-walled carbon nanotubes (SWCNTs) or mixtures of SWCNTs with multi-walled carbon nanotubes (MWCNTs) or vapor-grown carbon nanofibers (VGCNFs). In this research, BPs were exposed to high electrical current densities under different environm…
Vascular tissue engineering has emerged as a promising technology for the design of an ideal, responsive, living conduit with properties similar to that of native tissue. The missing link in tissue-engineered blood vessels is elastin biosynthesis. Several biomaterials are currently used but few support elastin biosynt…
A cyclen-based ligand containing trans-acetate and trans-methylenephosphonate pendant groups, H 6DO2A2P, was synthesized and its protonation constants (12.6, 11.43, 5.95, 6.15, 2.88, and 2.77) were determined by pH-potentiometry and (1)H NMR spectroscopy. The first two protonations were shown to occur at the two macro…
BACKGROUND AND OBJECTIVES: The pathogenesis of acquired nephrogenic systemic fibrosis recently described for patients with renal insufficiency and a history of exposition to gadolinium-based magnetic resonance contrast agents is not completely understood. A role for circulating fibroblasts in the fibrosing tissue is h…