Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA New Class of Heterocyclic Compounds for Nonlinear OpticsHui Pan, Xuling Gao, Yue Zhang, Paras N. Prasad, Bruce Reinhardt, and Ram KannanCite this: Chem. Mater. 1995, 7, 5, 816–821Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published in…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHyaluronic Acid-(Hydroxypropyl)cellulose Blends: A Solution and Solid State StudyVipul Dave, Monica Tamagno, Bonaventura Focher, and Enrico MarsanoCite this: Macromolecules 1995, 28, 10, 3531–3539Publication Date (Print):May 1, 1995Publication History Published online1 May 2…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCalculated Structures and Electronic Absorption Spectroscopy for Magnesium Phthalocyanine and Its Anion RadicalMarshall G. Cory, Hiroaki Hirose, and Michael C. ZernerCite this: Inorg. Chem. 1995, 34, 11, 2969–2979Publication Date (Print):May 1, 1995Publication History Publis…
Profiles of Bragg reflections from earth-grown crystals of lysozyme from hen egg-white and collagenase from Hypoderma lineatum were directly recorded with a quasi-planar X-ray wave. One crystal of each protein was chosen for a detailed investigation. Each sample is shown to consist of only a few (three and two, respec…
Electron-beam induced deposition represents a new technology for production of three-dimensional nanoscale structures. The properties of the deposited material are determined by the precursor material as well as the deposition parameters. The deposits of very different organometallic precursor molecules show similar m…
Author: Rubin, S. F. et al.; Genre: Journal Article; Issued: 1995; Title: EFFECT OF MESOPHASE ORDER AND MOLECULAR-WEIGHT ON THE DYNAMICS OF<br/> NEMATIC AND SMECTIC SIDE-GROUP LIQUID-CRYSTALLINE POLYMERS
Chemical analyses of surface films and corrosion products formed on pure Cu, Zn, Ni, and Ag samples exposed up to 12 months in various mild indoor environments have been performed by infrared reflection‐absorption spectroscopy (IRAS) and x‐ray photoelectron spectroscopy. The analyses reveal metal carboxylates to be th…
ABSTRACT Thermal polymerization and mechanical degradation rates were measured for wheat gluten and glutenin at 25–30% moisture. Changes in soluble protein and disulfide bonds were measured at 85°C to 180°C, residence times of 2–60 set and shear rates of 10–275 sec ‐l . Polyrnerization rates without shear were evaluat…
This communication demonstrates a strong, room-temperature (RT), infrared (IR) (1.54 μm) emission from Er-implanted red-emitting (peaked at 1.9 eV) porous silicon (Er:PSi). Erbium was implanted into porous Si, bulk Si, and quartz with a dose of 1015/cm2 at 190 keV and annealed for 30 minutes in N2 at temperatures rang…
The chemisorption of coadsorbed CO and NO has been studied over Pd(111) and Pd(100) at 1×10−6 Torr using infrared reflection absorption spectroscopy. At a pressure ratio of PNO/PCO= 1, the ratio of adsorbed NO to adsorbed CO, [NOa]/[COa], increased with temperature over both single crystal surfaces. Furthermore, the […
The microgenetic algorithm is utilized in the design of dielectric grating structures. To our knowledge, this is the first time that a genetic algorithm has been demonstrated with a small population size, a mixed variable type, and an adaptive mutation scheme. A wide range of grating devices is optimized with the micr…
The effects of strain on the zone-center TO phonon frequencies of cubic BN (and, hence, the positions of the infrared-absorption peaks) are calculated using an ab initio pseudopotential linear-combination-of-atomic-orbitals method. The calculated phonon wave number for the unstrained material is 1063 ${\mathrm{cm}}^{\…
The pitting and polarization characteristics of low-index surfaces of zinc (Zn) monocrystals were studied in weakly alkaline (pH 9.2) solutions containing 0.1 M sodium chloride (NaCl), using single-cycle potentiodynamic polarization tests and a scan rate of 0.5 mV/s. Tests were conducted in the presence and absence of…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid-State Synthesis and Morphology of Poly(ferrocenyldimethylsilane)J. Rasburn, R. Petersen, R Jahr, R. Rulkens, I. Manners, and G. J. VancsoCite this: Chem. Mater. 1995, 7, 5, 871–877Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Publish…
Photoluminescence of erbium-implanted porous silicon is investigated. Room temperature 1.54 μm Er3+ luminescence is observed after annealing. The luminescence spectrum, annealing characteristics, temperature quenching, and the luminescence lifetime suggest that the Er3+ luminescence is mediated by photocarriers in the…
The TATA-binding protein (TBP) plays a key role in transcription initiation. Several negative cofactors (NC1, NC2, and Dr1) are known to interact with TBP in a manner that prevents productive interactions of transcription factors TFIIA and TFIIB with promoter-bound TBP. To gain insights into the regulatory interplay o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of Molecular Weight Distributions of Polymers by MALDI-FTMSMichael. Dey, John A. Castoro, and Charles L. WilkinsCite this: Anal. Chem. 1995, 67, 9, 1575–1579Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 Ma…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBoron-Modified MCM-41 Mesoporous Molecular SievesAbdelhamid Sayari, Chistophe Danumah, and Igor L. MoudrakovskiCite this: Chem. Mater. 1995, 7, 5, 813–815Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Half-Open Cage-Shaped Cluster, (NEt4)3[WOS3(CuBr)3(.mu.2-Br)].cntdot.2H2O: Synthesis, Structure, and Nonlinear Optical PropertiesZ. R. Chen, H. W. Hou, X. Q. Xin, K. B. Yu, and S. ShiCite this: J. Phys. Chem. 1995, 99, 21, 8717–8721Publication Date (Print):May 1, 1995Publi…
Abstract The possibility of reacting furfuryl alcohol with the p ‐position of phenolic rings, under acid conditions, was proved using different experimental techniques: size exclusion chromatography, Fourier transform infrared spectroscopy and 13 C NMR. This reaction was then used in the modification of phenolic novol…