نتایج جستجو برای: structural incorporation
تعداد نتایج: 449937 فیلتر نتایج به سال:
Diiron species containing a cyclic P(Ph)2N(Ph)2 diphosphine related to the [FeFe]H2ases active site.
A new dissymmetrically disubstituted diiron dithiolate species, [Fe(2)(CO)(4)(κ(2)-P(Ph)(2)N(Ph)(2))(μ-pdt)] (pdt = S(CH(2))(3)S), was prepared by using a flexible cyclic base-containing diphosphine, 1,3,5,7-tetraphenyl 1,5-diaza-3,7-diphosphacyclooctane (P(Ph)(2)N(Ph)(2) = {PhPCH(2)NPh}(2)). Preliminary investigations of proton and electron transfers on the diiron system have been done.
In the present work, structural, microstructural, compositional and electronic band gap properties of As40Se60 As40Bi15Se45 bulk thin films are reported. The were prepared by thermal evaporation technique under high vacuum. X-ray diffraction (XRD) study indicated amorphous nature in melt quenching technique. Bi incorporation with composition Bi15As40Se45 however led to nucleation Bi2Se3 nanocry...
The biological properties of hydroxyapatite (HA) are significantly influenced by its compositional characteristics especially doping elements and/or Ca/P ratio, which can be altered precursor chemistry. In this study, a group boronated (B-incorporated) (BHA) was synthesized using precipitation method setting the ratio to stoichiometric value HA (1.67), while altering chemistry adjusting either ...
The frontispiece shows the adaptable character of 2'-deoxy-2',2'-difluorocytidine (gemcitabine) nucleotide when incorporated into double helical structures (shown in magenta). Gemcitabine adopts a North type sugar conformation inserted B-form helix (in green), as that formed by pure DNA, or South an A-type blue), DNA : RNA hybrids. A chameleon skin picture background metaphorically illustrates ...
Glycogen is a glucose polymer that contains minor amounts of covalently attached phosphate. Hyperphosphorylation is deleterious to glycogen structure and can lead to Lafora disease. Recently, it was demonstrated that glycogen synthase catalyzes glucose-phosphate transfer in addition to its characteristic glucose transfer reaction. Glucose-1,2-cyclic-phosphate (GCP) was proposed to be formed fro...
Structural and optical changes induced by incorporation of antimony into InAs/GaAs(001) quantum dots
A. G. Taboada, A. M. Sánchez, A. M. Beltrán, M. Bozkurt, D. Alonso-Álvarez, B. Alen, A. Rivera, J. M. Ripalda, J. M. Llorens, J. Martín-Sánchez, Y. González, J. M. Ulloa, J. M. Garcia,' S. I. Molina, and P. M. Koenraad Instituto de Microelectrónica de Madrid, CNM (CSIC), C/Isaac Newton 8, PTM, 28760 Tres Cantos, Madrid, Spain Department of Physics, University of Warwick, Coventry CV4 7AL, Unite...
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