Materials Literature
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In the end: Alkyl end groups can induce a thermoreversible sol–gel transition in an otherwise sol-like suspension by affecting the macroscopic self-assembly behavior. The picture shows PLGA-PEG-PLGA triblock copolymer/water mixtures in the sol (polymer a), gel (polymers b and c), and precipitation states (polymer d).…
A new concept, the strength of bond, and a new form expressing the hardness of covalent and ionic crystals are presented. Hardness is expressed by means of quantities inherently coupled to the atomistic structure of matter, and, therefore, hardness can be determined by first-principles calculations. Good agreement bet…
We describe and demonstrate a general strategy for engineering binary and ternary hybrid nanoparticles based on spontaneous epitaxial nucleation and growth of a second and third component onto seed nanoparticles in high-temperature organic solutions. Multifunctional hybrid nanoparticles that combine magnetic, plasmoni…
We derive an effective two-dimensional Hamiltonian to describe the low-energy electronic excitations of a graphite bilayer, which correspond to chiral quasiparticles with a parabolic dispersion exhibiting Berry phase 2pi. Its high-magnetic-field Landau-level spectrum consists of almost equidistant groups of fourfold d…
CsBr phosphor ceramics doped with different luminescence center such as In<sub>2</sub>O<sub>3</sub>, Eu<sub>2</sub>O<sub>3</sub>, EuCl<sub>3</sub>, SmCl<sub>3</sub>, TbCl<sub>3</sub>, GdCl<sub>3</sub> or NdCl<sub>3</sub> as a candidate of a new photosimulable phosphor for medical x-ray imaging sensor are prepared usin…
This chapter introduces the field of molecular magnetism with a brief overview of the main properties. It takes a historical point of view. Concepts such as magnetic anisotropy, superparamagnetism, and magnetic relaxation, which are the keys to understanding how the bulk behaviour arises from nanomagnetism, are discus…
Forever blowing bubbles! Polyelectrolytes are highly charged polymers that can self-assemble at interfaces to form micro- and nanometer-sized structures. A recent report described the coating of air-filled detergent gas bubbles by deposition of polyelectrolyte layers (see picture; black: surfactant; green, blue: polye…
We present the high-temperature $(70\phantom{\rule{0.3em}{0ex}}\mathrm{K}<T<300\phantom{\rule{0.3em}{0ex}}\mathrm{K})$ resistivity anisotropy and Hall effect measurements of the quasi-one-dimensional (1D) organic conductor $(\mathrm{TMTTF}{)}_{2}{\mathrm{AsF}}_{6}$. The temperature variations of the resistivity…
Abstract Fourteen commercial polyadipates and a polysebacate were analysed for their components of a molecular mass below 1000 Da, primarily with the aim of generating the background data for measuring the migration of this type of polymeric additives from plasticized PVC (e.g. cling films and gaskets of lids) into fo…
From molecular dynamics simulations results are reported concerning correlations between low-frequency (lf) heterogeneous dynamics in simulated Ni0.5Zr0.5 melts at 700, 760, and 810 K, which means around the Kauzmann temperature of the model, TK approximately 750 K. A method is presented to separate lf dynamics, refle…
Abstract A method is presented to predict the yield stress distribution throughout an injection‐molded product of an amorphous polymer as it results from processing conditions. The method employs the concept of structural relaxation combined with a fictive temperature, following the Tool–Narayanaswamy–Moynihan formali…
Reactions of CuX2.nH2O with the biscarboxylate ligand XDK (H2XDK = m-xylenediamine bis(Kemp's triacid imide)) in the presence of N-donor auxiliary ligands yielded a series of dicopper(II) complexes, [Cu2(mu-OH)(XDK)(L)2]X (L = N,N,N',N'-tetramethylethylenediamine (tetmen), X = NO3 (1a), Cl (1b); L = N,N,N'-trimethylet…
Two families of organometallic polymers built upon the bimetallic M2(dppm)2L(2)2+ fragments (M = Pd, Pt; dppm = bis(diphenylphosphino)methane, L = 1,4-diisocyano-2,3,5,6-tetramethylbenzene (diiso), 1,8-diisocyano-p-menthane (dmb), 1-isocyano-2,6-dimethylbenzene, 1-isocyano-4-isopropylbenzene, and tert-butylisocyanide)…
This chapter introduces the reader into the field of single molecule magnets (SMM). The first part is an essentially chemical one, aiming to familiarize the reader with the basic aspects of the art, and with the scientific methods used by chemists to design and synthesize their compounds. The rational and serendipity…
The surface of solid glass supports for samples in optical microscopy and for biosensors needs to be protein-resistant. A coating of a poly(ethylene glycol) monomethyl ether (mPEG) on the surface of the glass is one promising method for preventing the nonspecific adsorption of proteins. In this study, we have develope…
The doping effects on the proton incorporation and protonic conductivity of perovskite-type SrZrO3 were investigated using the density functional theory (DFT) with the generalized gradient approximation (GGA). The optimized geometries, formation energies of hydrogen defect and activation energies for hydrogen diffusio…
Li-doped p-type ZnO was fabricated by heat treatment of Zn–Li alloy film with 2 at% Li on a quartz substrate in N 2 flow at 500 °C for 2 h, and then in O 2 flow at 700 °C for 1 h. The room-temperature resistivity was measured to be 678.34 Ω cm with a Hall mobility of 1.03 cm 2 V −1 s −1 and a carrier concentration of…
Poly(propylene carbonate)/starch (PPC/starch) composites with different starch contents were prepared by melt compounding. The biodegradability of the composites was studied by soil burial for a period of 6 months. FTIR study, thermal analysis and morphology observation indicated clearly the changes of the buried spec…
Fluconazole poly(D,L-lactic) acid (PLA) and poly(L-lactic) acid (L-PLA) implantable delivery rods were studied, in vitro and in vivo, as an alternative treatment of fungal osteomyelitis. Implantable rods loaded with 5% fluconazole (FLU) were prepared by the injection-molding method and sterilized by gamma-irradiation…
Dynamics of ${\mathrm{Ag}}^{+}$ ions in ${\mathrm{Ag}}_{2}\mathrm{S}$-doped ${\mathrm{AgPO}}_{3}$ glasses have been studied in the frequency range $10\phantom{\rule{0.3em}{0ex}}\mathrm{Hz}$ to $2\phantom{\rule{0.3em}{0ex}}\mathrm{MHz}$ and in the temperature range $93--323\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. The co…