Materials Literature
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Thin films of poly(vinyl methyl ether) (PVME) were immobilized on polystyrene surfaces by low energy electron beam cross-linking. Structure retention as well as the thermo-responsive swelling behavior in aqueous media were studied by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and sp…
We have carried out a structural and vibrational theoretical study for the citric acid dimer. The Density Functional Theory (DFT) method with the B3LYP/6‐31G ∗ and B3LYP/6‐311++G ∗∗ methods have been used to study its structure and vibrational properties. Then, in order to get a good assignment of the IR and Raman spe…
A novel class of photo-responsive A2–B3 type supramolecular hyperbranched polymer with excellent optical properties can be polymerized and depolymerized reversibly by alternating UV/Vis light irradiation.
A dbbpy platinum(II) bis(coumarin acetylide) complex (Pt-1, dbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine) was prepared. Pt-1 shows intense absorption in the visible region (λ(abs) = 412 nm, ε = 3.23 × 10(4) M(-1) cm(-1)) compared to the model complex dbbpy Pt(II) bis(phenylacetylide) (Pt-2, λ(abs) = 424 nm, ε = 8.8 × 10…
We assess performance in the structure refinement category in CASP9. Two years after CASP8, the performance of the best groups has not improved. There are few groups that improve any of our assessment scores with statistical significance. Some predictors, however, are able to consistently improve the physicality of th…
Polymer brushes are formed from flexible linear macromolecules tethered at one chain end to a solid substrate, forming a dense polymeric layer of polymer chains which are more or less stretched in the direction perpendicular to the substrate surface. These systems find interest also due to numerous applications (collo…
Uniform BaTiO(3) nano-torus with either concave or epicenter holes were synthesized by a hydrothermal method. Experimental observations indicated that the BaTiO(3) nano-torus with an average diameter ranging from 50 to 100 nm was of tetragonal phases at room temperature. The morphology of the BaTiO(3) nano-torus depen…
OBJECTIVE: The objective of the present study was to determine the ability of cerium oxide (CeO(2)) nanoparticles to protect against monocrotaline (MCT)-induced hepatotoxicity in a rat model. METHOD: Twenty male Sprague Dawley rats were arbitrarily assigned to four groups: control (received saline), CeO(2) (given 0.00…
Preface. About the Editor. List of Contributors. PART I. 1 Introductory Overview (David Plackett). 1.1 Introduction. 1.2 Worldwide Markets for Films and Coatings. 1.3 Sustainability. 1.4 Bio-Derived Polymers. 1.5 Other Topics. References. 2 Production, Chemistry and Degradation of Starch-Based Polymers (Analia Vazquez…
Recent metamaterial (MM) research faces several problems when using metal-based plasmonic components as building blocks for MMs. The use of conventional metals for MMs is limited by several factors: metals such as gold and silver have high losses in the visible and near-infrared (NIR) ranges and very large negative re…
Among the grand challenges at present are ways to develop systems with low consumption of raw materials and with little load on the environment. In view of this it is of utmost importance to avoid or to delay processes causing material destruction. This is especially urgent, since many protective substances have assoc…
Background . Tissue engineering is defined as the designing and engineering of structures to rebuild and repair a body damaged tissue. Scaffolding Poly Hydroxy Butyrate Valerate (PHBV) has shown good biocompatibility and biodegradable properties. Nanofibers have improved the performance of biomaterials, and could be c…
Herein, noble metal nanoparticle (Au or Ag NP) decorated graphene sheets, fabricated according to a facile one-pot environmentally friendly method, are used as good substrates for the investigation of the combined surface-enhanced Raman scattering (SERS) effect, where both the electromagnetic mechanism and the chemica…
One-dimensional, single-crystalline BiFeO(3) nanowires presenting a diameter of 45-200 nm and a length from hundreds of nanometres to several microns have been prepared using an improved hydrothermal method. The characterization results of ZFC and FC magnetizations at different temperatures indicate that single-crysta…
With the emergence of phosphorescent heavy-metal complexes as a class of attractive probes for bioimaging, there is a parallel need to develop new phosphorescent probes with complete solubility in pure water for phosphorescent staining in living cells. Herein, a convenient and general design strategy for realizing pho…
We disclose two novel BODIPY dyes, which contain the bulky substituent, [(4-dimesitylboryl)phenyl]ethynyl at 2- and 2,6-positions. The steric bulkiness of the boryl group is effective to suppress the intermolecular interaction in the solid state and thus these two compounds display intense fluorescence not only in sol…
Mesoporous films with uniaxially oriented one-dimensional (1D) mesochannels have attracted much interest in a wide range of applications. In this highlight article, we briefly review the recent advances in this emerging field. Some general aspects including alignment methods, formation mechanisms, characterizations, a…
Alkali hexafluorotitanate red phosphors ( , Cs, and Na) are synthesized by chemical etching of in aqueous hydrofluoric acid (HF)/alkali permanganate /alkali fluoride (AF) solutions. X-ray diffraction patterns suggest that the synthesized phosphors have a trigonal symmetry with the space groups ( and ) and . The lumine…
With the aim of creating superoleophobic surfaces on engineering materials and understanding the influences of surface structures on the oleophobicity, we develop a convenient route to achieve superoleophobic surfaces on aluminum substrates using simple etching and surface fluorination. The liquid repellency of the te…
We demonstrated an unprecedented example of Ullmann homocoupling reaction of aryl iodides over a novel recyclable gold catalyst comprising Au nanoparticles supported on a bifunctional periodic mesoporous organosilica (Au@PMO).